THE ANIMAL KINGDOM, ARRANGED IN CONFORMITY WITH ITS ORGANIZATION. BY THE BARON CUVIER, PERPETUAI, SECRETARY TO THE HOYAI, ACADEMY OF SCIENCES, ETC ETC ETC TRANSLATED FROM THE FRENCH, AND ABRIDGED FOR THE USE OF SCHOOLS, &c. BY H. M’MURTRIE, M.D, &c. &c. NEW YORK: G, & C. & H. CARVILL; MDCCCXXXII. Entered according to the act of congress, in the year 1831, by G. & C. & H. Carvill, in the clerk’s office of the southern district of New York. Philadelphia: Printed by James Kay, Jun. &. Co. Printers to the American Philosophical Society. No. 4, Minor Street. TO TEACHERS OF YOUTH IN THE UNITED STATES OF AMERICA, riu's aa?orit, FOR THE USE OF THEIR PUPILS, IS MOST RESPECTFULLY INSCRIBED, IN THE FIRM BELIEF THAT WHILE IT WILL BE FOUND TO AMUSE, AS WELL AS INSTRUCT, TO INVIGORATE THE MEMORY, EXERCISE THE JUDGMENT, AND BRING ALL THE INTELLECTUAL FACULTIES INTO A STATE OF THE GREATEST ACTIVITY, IT WILL ALSO TEND TO PRODUCE THAT ELEVATION OF CHARACTER WHICH INEVITABLY RESULTS FROM THE STUDY OF NATURE. REMARKS. In presenting this abridgement of the well known “ Animal Kingdom” of the Baron Cuvier to those who are charged with one of the most honourable and responsible offices of the Republic, that of directing the education and forming the minds of those into whose keeping its future prosperity and happiness must be inevitably committed, I beg leave to anticipate the possible charge of interested adulation, by de- claring that I have no pecuniary concern in the work, which is, exclusively and entirely, the property of its enterprising publishers. To say that I am not interested in its adoption by our Teachers, would be false, for I must confess I look anxiously for that event, but from other motives than the “ auri fames.” The schools of continental Europe have long been supplied with works on the Natural Sciences, more particularly so call- ed, expressly prepared for that purpose by order of Govern- ment, while here they are as yet among the desiderata. A little reflection will soon convince every intelligent mind, that an elementary course of Zoology may be pursued by the pupil, without interfering with the usual matters to which alone his attention is at present directed, and that of course the argu- ment of (i time lost” falls to the ground. But when care- ful investigation shall have convinced it, that while of all studies the one in question tends most powerfully to strengthen the memory, exercise the judgment, discipline the mind, and bring every intellectual faculty of the pupil into a state of the greatest activity, it also tends to elevate his moral character to VI REMARKS that lofty standard which is the necessary result of that train of thought and inquiry which finally leads him from the creature to the Creator, it will admit it to be “time gained’’ and with the most usurious interest. The vast number and variety of facts to be retained in this study, and the necessity of classing them in the mind, begets a habit of mental activity, analysis, and order, that is of incalculable value to the possessor in the com- mon business of life, enabling him to disentangle and arrange the most confused and chaotic matters with certainty and despatch. In compressing the four large volumes of my edition of the u Animal Kingdom” into its present form, I have endeavour- ed to retain the whole of what I consider its great and leading points, and as much of such of the details of the organization, instincts and habits of the animals of which it treats, as could with propriety be presented to the consideration of those youthful minds for whose use it is intended. The whole has been sedulously, and I hope so thoroughly expurgated, that it may be placed in the hands of females, without the slightest fear of their encountering a word or idea that could offend the most fastidious delicacy, or sully that purity of imagination and thought which forms one of the brightest ornaments of the sex. H. M’MURTRIE. Pine Street, Philadelphia, December 1831. EXPLANATIONS. It is always customary with writers on Natural History to affix to every genus and species the name of its founder and describer, and for the sake of brevity, when it is long, to signify the same either by the first letter or syllable, where that name is well known, and by putting it in full in the op- posite case. Thus SIMIA, Lin., or L. means that Linnaeus is the founder of the genus Simia, and S. troglodytes, L. means that he first described that particular species of Ourang. Most frequently, however, the contracted name refers to the discoverer and describer of the species which precedes it. L. or Lin. stands for . Linnaeus. Fab., . . . Fabricius. Lat., . . . Latreille. Geoff., . . . Geoffroy. Illig., . . . Illiger. Cuv., . . . Cuvier. Fr. Cuv., . • Frederick Cuvier. Buff, . . . Buffon. Pall., . . . Pallus. Lam., . . . Lamarck. Gm., . . . Gmelin, &c. &c. &c. INTRODUCTION. AS correct ideas respecting natural history are not very generally formed, it appears necessary to begin by defining its peculiar ob- ject, and establishing rigorous limits between it and neighbouring sciences. In our language and in most others, the word nature is vari- ously employed. At one time it is used to express the qualities a being derives from birth, in opposition to those it may owe to art; at another, the entire mass of beings which compose the universe ; and at a third, the laws which govern those beings. It is in this latter sense particularly that we usually personify Nature, and, through respect, use its name for that of its Creator. Physics, or Natural Philosophy, treats of the nature of these three relations, and is either general or particular. General phy- sics examines abstractedly each of the properties of those movable and extended beings we call bodies. That branch of them, styled Dynamics, considers bodies in mass; and proceeding from a very small number of experiments, determines mathematically the laws of equilibrium, and those of motion and of its communication. Its different divisions are termed Statics, Hydrostatics, Hydrodynamics, Mechanics, &c. &c., according to the nature of the particular bo- dies whose motions it examines. Optics considers the particular motions of light, whose phenomena, which, hitherto, nothing but ex- periment has been able to determine, are becoming more numerous. Chemistry, another branch of general physics, exposes the laws by which the elementary molecules of bodies act on each other; the combinations or separations which result from the general tendency of these molecules to re-unite; and the modifications which the va- rious circumstances capable of separating or approximating them 10 INTRODUCTION produce on that tendency. It is purely a science of experiment, and is irreducible to calculation. The theory of heat and that of electricity belong either to Dyna- mics or Chemistry, according to the point of view in which they are considered. The ruling method in all the branches of general physics consists in insulating bodies, reducing them to their greatest simplicity, in bringing each of their properties separately into action, either by reflection or experiment, and by observing or calculating the results; and finally, in generalising and connecting the laws of these pro- perties, so as to form codes, and, if it were possible, to refer them to one single principle into which they might all be resolved. The object of Particular Physics, or of Natural History—for the terms are synonymous—is the special application of the laws recognised by the various branches of general physics to the numer- ous and varied beings which exist in nature, in order to explain the phenomena which each of them presents. Within this extensive range, Astronomy also would be included; but that science, sufficiently elucidated by Mechanics, and completely subjected to its laws, employs methods differing too widely from those required by Natural History, to permit it to be cultivated by the students of the latter. Natural History, then, is confined to objects which do not allow of exact calculation, nor of precise measurement in all their parts. Meteorology also is substracted from it and united to general phy- sics; so that, properly speaking, it considers only inanimate bodies called minerals, and the different kinds of living beings, in all of which we may observe the effects, more or less various, of the laws of motion and chemical attraction, and of all the other causes analysed by general physics. Natural History, in strictness, should employ similar methods with the general sciences; and it does so, in fact, whenever the objects it examines are sufficiently simple to allow it. This, however, is but very rarely the case. An essential difference between the general sciences and Natural History is, that in the former, phenomena are examined, whose con- ditions are all regulated by the examiner, in order, by their analysis, to arrive at general laws; whereas in the latter, they take place under circumstances beyond the control of him who studies them for the purpose of discovering amid the complication, the effects of known INTRODUCTION. 11 general laws. He is not, like the experimenter, allowed to subtract them successively from each condition, and to reduce the problem to its elements—he is compelled to take it in its entireness, with all its conditions at once, and can perform the analysis only in thought. Suppose, for example, we attempt to insulate the numerous pheno- mena which compose the life of any of the higher orders of animals; a single one being suppressed, every vestige of life is annihilated. Dynamics have thus nearly become a science of pure calculation, Chemistry is still a science of pure experiment; and Natural History, in a great number of its branches, will long remain one of pure observation. These three terms sufficiently designate the methods employed in the three branches of the natural sciences; but in establishing be- tween them very different degrees of certitude, they indicate, at the same time, the point to which they should incessantly tend, in order to attain nearer and nearer to perfection. Calculation, if we may so express it, thus commands Nature, and determines her phenomena more exactly than observation can make them known; experiment compels her to unveil; while observation pries into her secrets when refractory, and endeavours to surprise her. There is, however, a principle peculiar to Natural History, which it uses with advantage on many occasions; it is that of the conditions of existence, commonly styled final causes. As nothing can exist without the re-union of those conditions which render its existence possible, the component parts of each being must be so arranged as to render possible the whole being, not only with regard to itself but to its surrounding relations. The analysis of these conditions frequently conducts us to general laws, as certain as those that are derived from calculation or experiment. It is only when all the laws of general physics and those which result from the conditions of existence are exhausted, that we are reduced to the simple laws of observation. The most effectual method of obtaining these is that of compa- rison. This consists in successively observing the same bodies in the different positions in which nature places them, or in a mutual com- parison of different bodies; until we have ascertained invariable relations between their structures and the phenomena they exhibit. These various bodies are kinds of experiments ready prepared by Nature, who adds to or deducts from each of them different parts, 12 INTRODUCTION. just as we might wish to do in our laboratories; showing us, herself, at the same time their various results. In this way we finally succeed in establishing certain laws by which these relations are governed, and which are employed like those that are determined by the general sciences. The incorporation of these laws of observation with the general laws, either directly or by the principle of the conditions of exist- ence, would complete the system of the natural sciences, in render- ing sensible in all its parts the mutual influence of every being. To this end, should those who cultivate these sciences direct all their efforts. All researches of this nature, however, pre-suppose means of dis- tinguishing clearly, and causing others to distinguish, the bodies they are occupied with; otherwise we should be continually confounding them. Natural History then should be based on what is called a System of Nature; or a great catalogue, in which all created beings have suitable names, may be recognised by distinctive characters, and be arranged in divisions and subdivisions, themselves named and characterised, in which they may be found. In order that each being may be recognised in this catalogue, it must be accompanied by its character: habits or properties which are but momentary cannot, then, furnish characters—they must be drawn from the conformation. There is scarcely a single being which has a simple character, or can be recognised by one single feature of its conformation; a union of several of these traits are almost always required to dis- tinguish one being from those that surround it, who also have some but not all of them, or who have them combined with others of which the first is destitute. The more numerous the beings to be distinguished, the greater should be the number of traits; so that to distinguish an individual being from all others, a complete descrip- tion of it should enter into its character. It is to avoid this inconvenience, that divisions and subdivisions have been invented. A certain number only of neighbouring beings are compared with each other, and their characters need only to express their differences, which, by the supposition itself, are the least part of their conformation. Such a re-union is termed a genus. The same inconvenience would be experienced in distinguishing genera from each other, were it not for the repetition of the opera- tion in uniting the adjoining genera, so as to form an order, the INTRODUCTION. 13 orders to form a class, &c. Intermediate subdivisions may also be established. This scaffolding of divisions, the superior of which contain the inferior, is called a method. It is in some respects a sort of dic- tionary, in which we proceed from the properties of things to arrive at their names; being the reverse of the common ones, in which we proceed from the name to arrive at the property. When the method is good, it does more than teach us names. If the subdivisions have not been established arbitrarily, but are based on the true fundamental relations, on the essential resemblances of beings, the method is the surest means of reducing the properties of beings to general rules, of expressing them in the fewest words, and of stamping them on the memory. To render it such, we apply an assiduous comparison of beings, directed by the principle of the subordination of characters, which is itself derived from that of the conditions of existence. The parts of a being possessing a mutual adaptation, some traits of character exclude others, while on the contrary, there are others that require them. When, therefore, we perceive such or such traits in a being, we can calculate before hand those that co-exist in it, or those that are incompatible with them. The parts, the properties, or the traits of conformation, which have the greatest number of these relations of incompatibility or of co-existence with others, or, in other words, that exercise the most marked influence upon the whole of the being, are called the important characters, dominating characters; the others are the subordinate characters, all varying in degree. This influence of character is sometimes determined rationally, by the consideration of the nature of the organ. When this is im- practicable, we have recourse to simple observation; and a sure mark by which we may recognise the important characters, and one which is drawn from their own nature, is their superior constancy, and that in a long series of different beings, approximated according to their degrees of similitude, these characters are the last to vary. That they should be preferred for distinguishing the great divisions, and that in proportion as we descend to the inferior subdivisions, we can also descend to subordinate and variable characters, is a rule resulting equally from their influence and constancy. There can be but one perfect method, which is the natural method. We thus name an arrangement in which beings of the same genus are placed nearer to each other than to those of the other genera; the 14 INTRODUCTION. genera of the same order nearer than those of the other orders, &c, &c. This method is the ideal to which Natural History should tend; for it is evident that if we can reach it, we shall have the exact and complete expression of all nature. In fact, each being is determined by its resemblance to others, and difference from them; and all these relations would be fully given by the arrangement in question. In a word, the natural method would be the whole science, and every step towards it tends to advance the science to perfection. Life being the most important of all the properties of beings, and the highest of all characters, it is not surprising that it has in all ages been made the most general principle of distinction; and that natu- ral beings have always been separated into two immense divisions, the living and the inanimate. Of Living Beings, and Organization in general. If, in order to obtain a correct idea of the essence of life, we consider it in those beings in which its effects are the most simple, we quickly perceive that it consists in the faculty possessed by cer- tain corporeal combinations, of continuing for a time and under a determinate form, by constantly attracting into their composition a part of surrounding substances, and rendering to the elements, por- tions of their own. Life then is a vortex, more or less rapid, more or less complicated, the direction of which is invariable, and which always carries along molecules of similar kinds, but into which individual molecules are continually entering, and from which they are continually departing; so that the form of a living body is more essential to it than its matter. As long as this motion subsists, the body in which it takes place is living—it lives. When it finally ceases, it dies. After death, the elements which compose it, abandoned to the ordinary chemical affinities, soon separate, from which, more or less quickly, results the dissolution of the once living body. It was then by the vital motion that its dissolution was arrested, and its elements were held in a tem- porary union. All living bodies die after a certain period, whose extreme limit is fixed for each species, and death appears to be a necessary conse- quence of life, which, by its own action, insensibly alters the struc- ture of the body, so as to render its continuance impossible. INTRODUCTION. 15 In fact, the living body undergoes gradual, but continual changes, during the whole term of its existence. At first, it increases in dimensions, according to proportions, and within limits, fixed for each species and for each one of its parts; it then augments in den- sity in the most of its parts:—it is this second kind of change that appears to be the cause of natural death. If we examine the various living bodies more closely, we find they possess a common structure, which a little reflection soon causes us to perceive is essential to a vortex such as the vital motion. Solids, it is plain, are necessary to these bodies, for the mainte- nance of their forms; and fluids for the conservation of motion in them. Their tissue, accordingly, is composed of network and plates, or of fibres and solid laminaa, within whose interstices are contained the fluids; it is in these fluids that the motion is most con- tinued and extended. Foreign substances penetrate the body and unite with them; they nourish the solids by the interposition of their molecules, and also detach from them those that are superfluous. It is in a liquid or gaseous form that the matters to be exhaled tra- verse the pores of the living body; but in return, it is the solids which contain the fluids, and by their contraction communicate to them part of their motion. This mutual action of the fluids and solids, this transition of mole- cules, required considerable affinity in their chemical composition; and such is the fact—the solids of organized bodies being mostly composed of elements easily convertible into fluids or gases. The motion of the fluids needing also a constantly repeated action on the part of the solids, and communicating one to them, required in the latter both flexibility and disability; and accordingly we find this character nearly general in all organized solids. This structure, common to all living bodies; this areolar tissue, whose more or less flexible fibres or laminae intercept fluids more or less abundant; constitutes what is called the organization. As a consequence of what we have said, it follows, that life can be enjoyed by organized bodies only. Organization, then, results from a great variety of arrangements, which are all conditions of life; and it is easy to conceive, that if its effect be to alter either of these conditions, so as to arrest even one of the partial motions of which it is composed, the general move- ment of life must cease. Every organized body, independently of the qualities common to 16 INTRODUCTION. its tissue, has a form peculiar to itself, not merely general and exter- nal, but extending to the detail of the structure of each of its parts; and it is upon this form, which determines the particular direction of each of the partial movements that take place in it, that depends the complication of the general movement of its life—it constitutes its species and renders it what it is. Each part co-operates in this general movement by a peculiar action, and experiences from it particular effects, so that in every being life is a whole, resulting from the mutual action and re-action of all its parts. Life, then, in general, pre-supposes organization in general, and the life proper to each individual being pre-supposes an organization peculiar to that being, just as the movement of a clock pre-supposes the clock; and accordingly we behold life only in beings that are organized and formed to enjoy it, and all the efforts of philosophy have never been able to discover matter in the act of organization, neither per se, nor by any external cause. In fact, life exercising upon the elements which at every moment form a part of the living body, and upon those which it attracts to it, an action contrary to that which, without it, would be produced by the usual chemical affinities, it seems impossible that it can be produced by these affini- ties, and yet we know of no other power in nature capable of re- uniting previously separated molecules. The birth of organized beings is, therefore, the greatest mystery of the organic economy and of all nature: we see them developed, but never being formed; nay more, all those whose origin we can trace, have at first been attached to a body similar in form to their own, but which was developed before them—in a word, to a parent. So long as the offspring has no independent existence, but partici- pates in that of its parent, it is called a germ. The place to which the germ is attached, and the cause which detaches it and gives it an independent life, vary; but this primitive adhesion to a similar being is a rule without exception. The sepa- ration of the germ is called generation. Every organized being re-produces others that are similar to itself, otherwise, death being a necessary consequence of life, the species would become extinct. Organized beings have even the faculty of reproducing, in degrees varying with the species, particular parts of which they may have been deprived—this is called the power of reproduction. The development of organized beings is more or less rapid, and INTRODUCTION. 17 more or less extended, as circumstances are more or less favourable. Heat, the abundance and species of nutriment, with other causes, exercise great influence, and this influence may extend to the whole body in general, or to certain organs in particular: thence arises the impossibility of a perfect similitude between the offspring and parent. Differences of this kind, between organized beings, form what are termed varieties. There is no proof, that all the differences which now distinguish organized beings are such as may have been produced by circum- stances. All that has been advanced upon this subject is hypothe- tical. Experience, on the contrary, appears to prove, that, in the actual state of the globe, varieties are confined within rather narrow limits, and go back as far as we may, we still find those limits the same. We are thus compelled to admit of certain forms, which, from the origin of things, have perpetuated themselves without exceeding these limits; and every being, appertaining to one or other of these forms, constitutes what is termed a species. Varieties are acciden- tal subdivisions of species. Species should be defined, the re-union of individuals descended one from the other, or from common parents, or from such as resem- ble them, as strongly as they resemble each other. Rut although this definition is strict, it will be seen that its application to particular individuals may be very difficult, where the necessary experiments have not been made. Thus then it stands—absorption, assimilation, exhalation, develop- ment and generation are functions common to all living bodies; birth and death the universal limits of their existence; an areolar, con- tractile tissue, containing within its laminae fluids or gases in motion, the general essence of its structure; substances almost all suscepti- ble of conversion into fluids or gases, and combinations capable of an easy and mutual transformation, the basis of their chemical com- position. Fixed forms that are perpetuated by generation distinguish their species, determine the complication of the secondary functions proper to each of them, and assign to them the parts they are to play on the great stage of the universe. These forms are neither produced nor changed by their own agency—life supposes their ex- istence, its flame can only be kindled in an organization already prepared, and the most profound meditation and lynx-eyed and deli- 18 INTRODUCTION. cate observation can penetrate no farther than the mystery of the pre-existence of the germs. Divisions of organized beings into Animals and Vegetables. Living or organized beings have always been subdivided into ani- mate beings, that is, such as are possessed of sense and motion, and into inanimate beings, which are deprived of both these faculties, and are reduced to the simple faculty of vegetating. Although the leaves of several planks shrink from the touch, and the roots are steadily directed towards moisture, the leaves to light and air, and though parts of vegetables appear to oscillate without any apparent external cause, still these various motions have too little similarity to those of animals, to enable us to find in them any proofs of per- ception or will. The spontaneity in the motions of animals required essential mo- difications even in their purely vegetative organs. Their roots not penetrating the earth, it was necessary they should be able to place within themselves a supply of aliment, and to carry its reservoir along with them. Hence is derived the first character of animals, or their alimentary canal, from which their nutritive fluid penetrates all other parts through pores or vessels, which are a kind of internal roots. The organization of this cavity and its appurtenances required varying, according to the nature of the aliment, and the operation it had to undergo, before it could furnish juices fit for absorption; whilst the air and earth present to vegetables nought but elaborated juices ready for absorption. The animal, whose functions are more numerous and varied than those of the plant, consequently necessitated an organization much more complete; besides this, its parts not being capable of preserv- ing one fixed relative position, there were no means bv which exter- nal causes could produce the motion of their fluids, which required an exemption from atmospheric influence; from this originates the second character of animals, their circulating system, one less essen- tial than that of digestion, since in the more simple animals it is unnecessary. The animal functions required organic systems, not needed by vegetables—that of the muscles for voluntary motion, and serves for sensibility; and these two systems, like the rest, acting only through the motions and transformations of the fluids, it was INTRODUCTION. 19 necessary that these should be most numerous in animals, and that the chemical composition of the animal body be more complex than that of the plant; and so it is, for one substance more (azote) enters into it as an essential element, whilst in plants it is a mere acciden- tal junction with the three other general elements of organization, oxygen, hydrogen, and carbon. This then is the third character of animals. From the sun and atmosphere, vegetables receive for their nutri- tion water, which is composed of oxygen and hydrogen; air, which contains oxygen and azote; and carbonic acid, which is a combina- tion of oxygen and carbon. To extract their own composition from these aliments, it was necessary they should retain the hydrogen and carbon, exhale the superfluous oxygen and absorb little or no azote. Such, in fact, is vegetable life, whose essential function is the exhalation of oxygen, which is effected through the agency of light. Animals also derive nourishment, directly or indirectly, from the vegetable itself, in which the hydrogen and carbon form the principal parts. To assimilate them to their own composition, they must get rid of the superabundant hydrogen and carbon in particular, and accumulate more azote, which is performed through the medium of respiration, by which the oxygen of the atmosphere combines with the hydrogen and carbon of their blood, and is exhaled with them in the form of water and carbonic acid. The azote, whatever part of the body it may penetrate, seems always to remain there. The relations of vegetables and animals to the surrounding atmos- phere are therefore in an inverse ratio—the former reject water and carbonic acid, while the latter produce them. The essential func- tion of the animal body is respiration; it is that which in a manner animalizes it; and we shall see that the animal functions are the more completely exercised, in proportion to the greatness of the powers of respiration possessed by the animal. This difference of relations constitutes the fourth character of animals. Of the forms peculiar to the organic elements of the animal body, and of the 'principal combinations of its chemical elements. An areolar tissue and three chemical elements are essential to every living body; there is a fourth element peculiarly requisite to 20 INTRODUCTION. that of an animal; but this tissue is composed of variously formed meshes, and these elements are variously combined. There are three kinds of organic materials or forms of texture, the cellular membrane, the muscular fibre, and the medullary matter, and to each form belongs a peculiar combination of chemical ele- ments, as well as a particular function. The cellular substance is composed of an infinity of small fibres and laminae, fortuitously disposed, so as to form little cells that com- municate with each other. It is a kind of sponge, which has the same form as the body, all other parts of which traverse or fill it, and contracting indefinitely, on the removal of the causes of its tension. It is this power that retains the body in a given form and within cer- tain limits. When condensed, this substance forms those laminre called mem- branes; the membranes, rolled into cylinders, form those more or less ramified tubes named vessels; the filaments called fibres are resolved into it, and bones arc nothing but the same thing indurated by the accumulation of earthy particles. The cellular substance consists of a combination well known as gelatine, characterised by its solubility in boiling water, and forming, when cold, a trembling jelly. We have not yet been able to reduce the medullary matter to its organic molecules; to the naked eye, it appeal's like a sort of soft bouillie, consisting of excessively small globules; it is not suscepti- ble of any apparent motion, but in it resides the admirable power of transmitting to the mind the impressions of the external senses, and conveying to the muscles the orders of the will. It constitutes the greater portion of the brain and the spinal marrow, and the nerves which are distributed to all the sentient organs are, essentially, mere fasciculi of its ramifications. The fleshy or muscular fibre is a peculiai sort of filament, whose distinctive property, during life, is that of contracting when touched or struck, or when it experiences the action of the will through the medium of the nerve. The muscles, direct organs of voluntary motion, are mere bundles of fleshy fibres. All vessels and membranes which have any kind of compression to execute are armed with these fibres. They are always intimately connected with the nervous threads, but those which belong to the purely vegetative functions contract, without INTRODUCTION. 21 the knowledge of the individual, so that, although the will is truly a means of causing the fibres to act, it is neither general nor unique. The fleshy fibre has for its base a particular substance called Jibrine, which is insoluble in boiling water, and which seetns natu- rally to assume this filamentous disposition. The nutritive fluid or the blood., such as we find in the vessels of the circulation, is not only mostly resolvable into the general elements of the animal body, carbon, hydrogen, oxygen and azote, but it also contains fibrine and gelatine, almost prepared to contract and to assume the forms of membranes or filaments peculiar to them, all that is ever wanted for their manifestation being a little repose. The blood also contains another combination, which is found in many animal fluids and solids, called albumen whose cha- racteristic property is that of coagulating in boiling water. Besides these, the blood contains almost every element which may enter into the composition of the hotly of each animal, such as the lime and phosphorus which harden the bones of vertebrated animals, the iron from which it and various other parts receive their colour, the fat or animal oil which is deposited in the cellular substance to supply it, &e. All the fluids and solids of the animal body are composed of chemical elements found in the blood, and it is only by possessing a few elements more or less, that each of them is distinguished; whence it is plain, that their formation entirely depends on the sub- straction of the whole or part of one or more elements of the blood, and in some few cases, on the addition of some element from else- where. These operations, by which the blood nourishes the fluid or solid matter of all parts of the body, may assume the general name of secretions. This name, however, is often appropriated exclusively to the production of liquids; while that of nutrition is more espe- cially applied to the formation and deposition of the matter necess- ary to the growth and conservation of the solids. The composition of every solid organ, of every fluid is precisely such as fits it lor the part it is to play, and it preserves it as long as health remains, because the blood renews it as fast as it becomes changed. The blood itself by this continued contribution is changed every moment, but is restored by digestion, which renews its matter by respiration, which delivers it from superfluous carbon and hydro- gen, by perspiration and various other excretions, that relieve it from other superabundant principles. 22 INTRODUCTION. These perpetual changes of chemical composition form a part of the vital vortex, not less essential than the visible movements and those of translation. The object of the latter is, in fact, but to pro- duce the former. Of the forces which act in the Animal Body. The muscular fibre is not only the organ of voluntary motion, for we have just seen that it is also the most powerful of the agents employed by nature to produce those transmutations so necessary to vegetative life. Thus the fibres of the intestines produce the peristaltic motion, which causes the alimentary matter therein con- tained to pass through them; the fibres of the heart and arteries are the agents of the circulation and through it of all the secretions, &,c. Volition contracts the fibre through the medium of the nerve; and the involuntary fibres, such as those we have mentioned, being also animated by them, it is probable that these nerves are the cause of their contraction. All contraction, and generally speaking, every change of dimen- sion in nature, is produced by a change of chemical composition, though it consist merely in the flowing or ebbing of an imponderable fluid, such as caloric ; thus also are produced the most violent move- ments known upon earth, explosions, &c. There is, consequently, good reason to suppose that the nerve acts upon the fibre through the medium of an imponderable fluid, and the more so, as it is proved that this action is not mechanical. The medullary matter of the whole nervous system is homoge- neous, and must be able to exercise its peculiar functions wherever it is found; all its ramifications are abundantly supplied with blood vessels. All the animal fluids being drawn from the blood by secretion, we can have no doubt that such is the case with the nervous fluid, and that the medullary matter secretes it. On the other hand, it is certain that the medullary matter is the sole conductor of the nervous fluid; all the other organic elements restrain and arrest it, as glass arrests electricity. The external causes which are capable of producing sensations or causing contractions of the fibre are all chemical agents, capable of effecting decompositions, such as light, caloric, the salts, odorous vapours, percussion, compression, &.c. &c. INTRODUCTION. 23 It would appear then that these causes act on the nervous fluid chemically, and by changing its composition; this appears the more likely, as their action becomes weakened by continuance, as if the nervous fluid needed the resumption of its primitive composition, to fit it for a fresh alteration. The external organs of the senses may be compared to sieves, which allow nothing to pass through to the nerve, except that species of agent which should affect it in that particular place, but which often accumulates it so as to increase its effect. The tongue has its spongy papillae which imbibe saline solutions ; the ear, a gelatinous pulp which is violently agitated by sonorous vibrations; the eye, transparent lenses which concentrate the rays of light, &c. &c. It is probable, that what are styled irritants, or the agents which occasion the contractions of the fibre, exert this action by producing on the fibre, by the nerve, a similar effect to that produced on it by the will; that is, by altering the nervous fluid, in the way that is re- quisite to change the dimensions of the fibre which it influences: but with this process the will has nothing to do, and very often the me is entirely ignorant of it. The muscles separated from the body preserve their susceptibility of irritation, as long as the portion of the nerve that remains with them preserves the power of acting on them—with this phenomenon the will has evidently no connexion. The nervous fluid altered by muscular irritation, as well as by sensibility and voluntary motion, and the same necessity exists for the re-establishment of its primitive composition. The transmutations necessary to vegetable life are occasioned by irritants ; the aliment irritates the intestine, the blood irritates the heart, &.c. These movements are all independent of the will, and generally (while in health) take place without the knowledge of the individual; in several parts, the nerves that produce them are even differently arranged from those that are appropriated to sensation or dependent on the will, and the very object of this difference appears to be the securing of this independence. The nervous functions, that is, sensibility and muscular irritability, are so much the stronger at every point, in proportion as their ex- citing cause is abundant; and as this cause or the nervous fluid is produced by secretion, its abundance must be in proportion to the quantity of medullary or secretory matter, and the amount of blood received by the latter. In animals that have a circulating system, tiie blood is propelled 24 INTRODUCTION. through the arteries which convey it to its destined parts, by means of their irritability and that of the heart. If these arteries be irri- tated, they act more strongly, and propel a greater quantity of blood ; the nervous fluid becomes more abundant and augments the local sensibility ; this, in its turn, augments the irritability of the arteries, so that this mutual action may sometimes be carried to a great ex- tent. It is called orgastn, and when it becomes painful and perma- nent, inflammation. The irritation may also originate in the nerve when exposed to the influence of acute sensations. This mutual influence of the nerves and fibres, either intestinal or arterial, is the real spring of vegetative life in animals. As eacli external sense is permeable only by such or such sensible substances, so each internal organ may be accessible only to this or that agent of irritation. Thus, mercury irritates the salivary glands, cantharides irritate the bladder, &c. These agents are called spe- cifics. The nervous system being homogeneous and continuous, local sensations and irritation debilitate the whole, and each function, by excessive action, may weaken the others. Excess of aliment weakens the power of thought, while long continued meditation impairs that of digestion, &c. Excessive local irritation will enfeeble the whole body, as if all the powers of life were concentrated in one single point. A second irritation produced at another part may diminish, or divert, as it is termed, the first: such is the eflcct of blisters, pur- gatives, &c. Brief as our sketch has been, it is sufficient to establish the poss- ibility of accounting for all the phenomena of physical life, from the properties it presents, by the simple admission of a fluid such as we have defined. Summary idea of the Functions and Organs of the bodies of Animals, and of their various degrees of complication. After what we have stated respecting the organic elements of the body, its chemical principles and acting powers, nothing remains but to give a summary idea of the functions of which life is composed, and of their appropriate organs. The functions of the animal body are divided into two classes: INTRODUCTION. 25 The animal functions, or those proper to animals, that is to say, sensibility and voluntary motion. The vital, vegetative functions, or those common to animals and vegetables, i. e., nutrition and generation. Sensibility resides in the nervous system. The most general external sense is that of touch ; it is seated in the skin, a membrane that envelopes the whole body, which is tra- versed in every direction by nerves whose extreme filaments expand on the surface into papillae, and are protected by the epidermis and other insensible teguments, such as hairs, scales, &c. &c. Taste and smell are merely delicate states of the sense of touch, for which the skin of the mouth and nostrils is particularly organized: the first, by means of papillae more convex and spongy; the second, by its extreme delicacy and the multiplication of its ever humid surface. We have already spoken of the ear and the eye. In fine, sensations more or less painful may originate in every part of the body through accident or disease. Many animals have neither ears nor nostrils, several are without eyes, and some are reduced to the single sense of touch, which is never absent. The action received by the external organs is continued by the nerves to the central masses of the nervous system, which, in the higher animals, consists of the brain and spinal marrow. The more elevated the nature of the animal, the more voluminous is the brain and the more is the sensitive power concentrated there ; the lower the animal, the more the medullary masses are dispersed, and in the most imperfect genera, the entire nervous substance seems to melt into the general matter of the body. That part of the body, which contains the brain and principal organs of sense, is called the head. When the animal has received a sensation, and this has occasioned volition, it is by the nerves, also, that this volition is transmitted to the muscles. The muscles are bundles of fleshy fibres whose contractions pro- duce all the movements of the animal body. The extension of the limbs and every elongation, as well as every flexion and abbreviation of parts, are the effects of muscular contraction. The muscles of every animal are arranged, both as respects number and direction, according to the movements it has to make ; and when these motions require force, the muscles are inserted into hard parts, articulated 26 INTRODUCTION. one over another, and may be considered as so many levers. These parts are called bones in the vertebrated animals, where they are internal, and are formed of a gelatinous mass, penetrated by particles of phosphate of lime. In the Mollusca, the Crustacea, and Insects, where they are external, and composed of a calcareous or horny substance that exudes between the skin and epidermis, they are called shells, crusts and scales. The fleshy fibres are attached to the hard parts by means of other fibres of a gelatinous nature, which seem to be a continuation of the former, constituting what are called tendons. The configuration of the articulating surfaces of the hard parts limits their motion, which are also restrained by cords or envelopes, attached to the sides of the articulations, called ligaments. It is from the various arrangements of this bony and muscular apparatus, and the form and proportion of the members therefrom resulting, that animals are capable of executing the innumerable movements that enter into walking and leaping, flight and natation. The muscular fibres, appropriated to digestion and the circulation, are independent of the will; they receive nerves, however, but the chief of them are subdivided and arranged in a manner which seems to have for its object their independence of the will. It is only in paroxysms of the passions and other powerful affections of the soul, which break down these barriers, that its empire is perceptible, and even then it is almost always to disorder these vegetative func- tions. It is, also, in a state of sickness only that these functions are accompanied with sensations: digestion is usually performed un- consciously. The aliment divided by the jaws and teeth, or sucked up when liquids constitute the food, is swallowed by the muscular movements of the hinder parts of the mouth and throat, and deposited in the first portions of the alimentary canal that is usually expanded into one or more stomachs; there it is penetrated with juices fitted to dissolve it. Passing thence through the rest of the canal, it receives other juices destined to complete its preparation. The parietes of the canal are pierced with pores which extract from this alimentary mass its nutritious portion ; the useless residuum is rejected. The canal in which this first act of nutrition is performed is a continuation of the skin, and is composed of similar layers; even the fibres that encircle it are analogous to those which adhere to the internal surface of the skin, called the fleshy pannicle.. Throughout INTRODUCTION. 27 the whole interior of this canal there is a transudation which has some connexion with the cutaneous perspiration, and which becomes more abundant when the latter is suppressed; the absorption of the skin is even very analogous to that of the intestines. It is in the lowest order of animals that the useless residuum is rejected by the mouth, their intestines resembling a sac, with but the one opening. Even among those where the intestinal canal has two orifices, there are many in which the nutritive juices being absorbed by the parietes of the intestine, are immediately diffused throughout the whole spongy substance of the body: such, it would appear, is the case with all Insects. But from the Arachnoides and Worms up- wards, the nutritive fluid circulates in a system of closed vessels, whose ultimate ramifications alone dispense its molecules to the parts that are nourished by it; the vessels that convey it are called arteries, those that bring it back to the centre of the circulation, veins. The circulating vortex is here simple, and there double and even triple (including that of the vena portae); the rapidity of its motion is often assisted by the contractions of a certain fleshy appa- ratus called a heart, which is placed at one or the other centres of circulation, and sometimes at both of them. In the red-blooded vertebrated animals, the nutritive fluid exudes from the intestines, white or transparent, and is then termed chyle; it is poured into the veins where it mingles with the blood, by two peculiar vessels called lacteals. Vessels similar to these lacteals, and forming with them an arrangement called the lymphatic system, also convey to the venous blood the residue of the nutrition of the parts and the products of cutaneous absorption. Before the blood is fit to nourish the parts, it must experience from the circumambient element the modification of which we have previously spoken. In animals possessing a circulating system, one portion of the vessels is destined to carry the blood into organs in which they spread it over a great surface to obtain an increase of this elemental influence. When that element is air, the surface is hollow, and is called lungs; when it is water, it is salient, and is termed branchiae. There is always an arrangement of the organs of motion for the purpose of propelling the element into, or upon, the organ of respiration. In animals destitute of a circulating system, air is diffused through every part of the body by elastic vessels called trachea; or water acts upon them, either by penetrating through vessels, or by simply 28 INTRODUCTION. bathing the surface of the skin. The respired, or purified blood is properly qualified for restoring the composition of all the parts, and to effect what is properly called nutrition. This facility, which the blood possesses, of decomposing itself at every point, so as to leave there the precise kind of molecule necessary, is indeed wonderful; but it is this wonder which constitutes the whole vegetative life. For the nourishment of the solids we see no other arrangement than a great subdivision of the extreme arterial ramifications, but for the production of fluids the apparatus is more complex and various. Sometimes the extremities of the vessels simply spread themselves over large surfaces, whence the produced fluid exhales; at others it oozes from the bottom of little cavities. Before these arterial ex- tremities change into veins, they most commonly give rise to parti- cular vessels that convey this fluid, which appears to proceed from the exact point of union between the two kinds of vessels; in this case the blood vessels and these latter form, by interlacing, particu- lar bodies called conglomerate or secretory glands. In animals that have no circulation, in Insects particularly, the parts are all bathed in the nutritive fluid: each of these parts draws from it what it requires, and if the production of a liquid be neces- sary, proper vessels floating in the fluid take up by their pores the constituent elements of that liquid. It is thus that the blood incessantly supports the composition of all the parts, and repairs the injuries arising from those changes which are the continual and necessary consequences of their func- tions. The general ideas we form with respect to this process are tolerably clear, although we have no distinct or detailed notion of what passes at each point, and for want of knowing the chemical composition of each part with sufficient precision, we cannot render an exact account of the transmutations necessary to effect it. Besides the glands which separate from the blood those fluids that are destined for the internal economy, there are some which detach others from it that are to be totally ejected, either as superfluous, or for some use to the animal, as the ink of the cuttle-fish, and the purple matter of various Mollusca, See. There is a process or phenomenon, infinitely more difficult to comprehend than that of the secretions—the production of the germ. We have even seen that it is to be considered as almost incompre- hensible ; but the existence of the germ being admitted, the subject presents no particular difficulties. As long as it adheres to the INTRODUCTION. 29 parent, it is nourished as if it were one of its organs, and when it detaches itself, it possesses its own life, which is essentially similar to that of the adult. The germ, the embryo, the foetus, and the new-born animal, have never, however, exactly the same form as the adult, and the differ- ence is sometimes so great, that their assimilation has been termed a metamorphosis. Thus, no one not previously aware of the fact would suppose that the caterpillar is to become a butterfly. Every living being is more or less metamorphosed in the course of its growth ; that is, it loses certain parts, and developes others. The antennas, wings, and all the parts of the butterfly were enclosed beneath the skin of the caterpillar ; this skin vanishes along with the jaws, feet, and other organs, that do not remain with the butterfly. The feet of the frog are enclosed by the skin of the tadpole ; and the tadpole, to become a frog, parts with its tail, mouth, and bran- chiae. The child, at birth, loses its placenta and membranes ; at a certain period its thymus gland nearly disappears, and it gradually acquires hair, teeth, and beard ; the relative size of its organs is altered, and its body augments in a greater ratio than its head, the head more than the internal ear, &c. The place where these germs are found, and their germs them- selves are collectively styled the ovary; the canal through which, when detached, they are carried into the uterus, the oviduct; the cavity in which, in many species, they are compelled to remain for a longer or shorter period previous to birth, the uterus. Of the Intellectual Functions of Animals. The impression of external objects upon the individual, the pro- duction of a sensation or of an image, is a mystery into which the human understanding cannot penetrate; and materialism an hypo- thesis, so much the more conjectural, as philosophy can furnish no direct proof of the actual existence of matter. The naturalist, however, should examine what appear to be the material conditions of sensation, trace the ulterior operations of the mind, ascertain to what point they reach in each being, and assure himself whether they are not subject to conditions of perfection, dependent on the organization of each species, or on the momentary state of each individual body. To enable a being to perceive, there must be an uninterrupted 30 INTRODUCTION. communication between the external sense and the central masses of the medullary system. It is then the modification only expe- rienced by these masses that the mind perceives: there may also be real sensations, without the external organ being affected, and which originate either in the nervous chain of communication, or in the central mass itself; such are dreams and visions, or certain acci- dental sensations. By central masses, we mean a part of the nervous system, that is so much the more circumscribed, as the animal is more perfect. In Man, it consists exclusively of a limited portion of the brain; but in Reptiles, it includes the brain and the whole of the medulla, and of each of their parts taken separately, so that the absence of the entire brain does not prevent sensation. In the inferior classes this extension is still greater. The perception acquired produces the image of the sensation experienced. We trace to without the cause of that sensation, and thus acquire the idea of the object that has produced it. By a necessary law of our intelligence, all ideas of material objects are in time and space. The modifications experienced by the medullary masses leave impressions there which are reproduced, and thus recal to the mind images and ideas; this is memory, a corporeal faculty that varies greatly, according to the age and health of the animal. Similar ideas, or such as have been acquired at the same time, recal each other; this is the association of ideas. The order, ex- tent and quickness of this association constitute the perfection of memory. Every object presents itself to the memory with all its qualities or with all its accessary ideas. Intelligence has the power of separating these accessary ideas of objects, and of combining those that are alike in several differ- ent objects under a general idea; the object of which no where really exists, nor presents itself per se—this is abstraction. Every sensation being more or less agreeable or disagreeable, xperience and repeated essays soon show what movements are re- uired to procure the one and avoid the other; and with respect to his, the intelligence abstracts itself from the general rules to direct he will. An agreeable sensation being liable to consequences that are not so, and vice versa, the subsequent sensations become associated with INTRODUCTION. 31 the idea of the primitive one, and modify the general rules framed by intelligence—this is prudence. From the application of these rules to general ideas, result cer- tain formulae, which are afterwards easily adapted to particular cases —this is called reasoning. A lively remembrance of primitive and associated sensations, and of the impressions of pleasure or pain that belong to them, consti- tutes imagination. One privileged being, man, has the faculty of associating his gene- ral ideas with particular images more or less arbitrary, easily im- pressed upon the memory, and which serve to recal the general ideas they represent. These associated images are styled signs; their assemblage is a language. When the language is composed of images that relate to the sense of hearing or of sounds, it is termed speech, and when relative to that of sight, hieroglyphics. Writing is a suite of images that relate to the sense of sight, by which we represent the elementary sounds, and by combining them, all the images relative to the sense of hearing of which speech is composed; it is therefore only a mediate representation of ideas. Although, with respect to the intellectual faculties, the most per- fect animals are infinitely beneath man; it is certain that their intel- ligence performs operations of the same kind. They move in consequence of sensations received, are susceptible of durable affec- tions, and acquire by experience a certain knowledge of things, by which they are governed independently of actual pain or pleasure, and by the simple foresight of consequences. When domesticated, they feel their subordination, know that the being who punishes them may refrain from so doing if he will, and when sensible of having done wrong, or behold him angry, they assume a suppliant and depre- cating air. In the society of Man they become either corrupted or improved, and are susceptible of emulation and jealousy: they have among themselves a natural language, which, it is true, is merely the expression of their momentary sensations, but Man teaches them to understand another, much more complicated, by which he makes known to them his will, and causes them to execute it. To sum up all, we perceive in the higher animals a certain degree of reason, with all its consequences, good and bad, and which ap- pears to be about the same as that of children ere they have learned to speak. The lower we descend from Man the weaker these facul- ties become, and at the bottom of the scale we find them reduced 32 INTRODUCTION. to signs (at times equivocal) of sensibility, that is, to some few slight movements to escape from pain. Between these two extremes, the degrees are infinite. In a great number of animals, however, there exists another kind of intelligence, called instinct. This induces them to certain actions necessary to the preservation of the species, but very often alto- gether foreign to the apparent wants of the individual; often also very complicated, and which, if attributed to intelligence, would sup- pose a foresight and knowledge in the species that perform them infinitely superior to what can possibly be granted. These actions, the result of instinct, are not the effect of imitation, for very fre- quently the individuals who execute them have never seen them performed by others: they are not proportioned to ordinary intelli- gence, but become more singular, more wise, more disinterested, in proportion as the animals belong to less elevated classes, and in all the rest of their actions are more dull and stupid. They are so entirely the property of the species, that all its individuals perform them in the same way without ever improving them a particle. The working Bees, for instance, have always constructed very ingenious edifices, agreeably to the rules of the highest geometry, and destined to lodge and nourish a posterity not even their own. The solitary Bee, and the Wasp also, form highly complicated nests, in which to deposit their eggs. From this egg comes a worm, which has never seen its parent, which is ignorant of the structure of the prison in which it is confined, but which, once metamorphosed, con- structs another precisely similar. The only method of obtaining a clear idea of instinct is by admit- ting the existence of innate and perpetual images or sensations in the sensorium which cause the animal to act in the same way as ordinary or accidental sensations usually do. It is a kind of perpe- tual vision or dream that always pursues it, and it may be considered, in all that has relation to its instinct, as a kind of somnambulism. There is no visible mark of instinct in the conformation of the animal, but, as well as it can be ascertained, the intelligence is always in proportion to the relative size of the brain, and particularly of its hemispheres. Of Method, as applied to the Animal Kingdom. From what has been stated with respect to methods in general, w® INTRODUCTION. 33 have now to ascertain what are the essential characters in animals, on which their primary divisions are to be founded. It is evident they should be those which are drawn from the animal functions, that is from the sensations, and motions; for both these not only make the being an animal, but in a manner establish its degree of ani- mality. Observation confirms this position by showing that their degrees of development and complication accord with those of the organs of the vegetative functions. The heart and the organs of the circulation form a kind of centre for the vegetative functions, as the brain and the trunk of the nervous system do for the animal ones. Now we see these two systems become imperfect and disappear together. In the lowest class of animals, where the nerves cease to be visible, the fibres are no longer distinct, and the organs of digestion are simple excavations in the homogeneous mass of the body. In insects the vascular system even disappears before the nervous one; but, in general, the dispersion of the medullary masses accompanies that of the muscular agents: a spinal marrow, on which the knots or ganglions represent so many brains, corresponds to a body divided into numerous rings, supported by pairs of limbs longitudinally distributed, &c. This correspondence of general forms, which results from the arrangement of the organs of motion, the distribution of the nervous masses, and the energy of the circulating system, should then be the basis of the primary divisions of the animal kingdom. We will afterwards ascertain, in each of these divisions, what characters should succeed immediately to those, and form the basis of the pri- mary subdivisions. General distribution of the Animal Kingdom into Four Great Di- visions. If, divesting ourselves of the prejudices founded on the divisions formerly admitted, we consider only the organization and nature of animals, without regard to their size, utility, the greater or less knowledge we have of them, and other accessary circumstances, we shall find there are four principal forms, four general plans, if it may be so expressed, on which all animals seem to have been modelled, and whose ulterior divisions, whatever be the titles with which natu- ralists have decorated them, are merely slight modifications, founded 34 INTRODUCTION. on the development or addition of certain parts, which produce no essential change in the plan itself. In the first of these forms, which is that of Man, and of the ani- mals most nearly resembling him, the brain and principal trunk of the nervous system are enclosed in a bony envelope, formed by the cranium and vertebrae; to the sides of this intermedial column are attached the ribs, and bones of the limbs, which form the frame work of the body; the muscles generally cover the bones, whose motions they occasion, while the viscera are contained within the head and trunk. Animals of this form we shall denominate Animalia Vertebrata, Or vertebrated animals. They have, all, red blood, a muscular heart, a mouth furnished with two jaws, one situated either above or before the other, distinct organs of sight, hearing, smell and taste placed in the cavities of the face; never more than four limbs, the sexes always separated, and a very similar distribution of the me- dullary masses and the principal branches of the nervous system. By a closer examination of each of the parts of this great series of animals, we always discover some analogy, even in species the most remote from each other; and may trace the gradations of one same plan from Man to the last of the Fishes. In the second form there is no skeleton; the muscles are merely attached to the skin, which constitutes a soft contractile envelope, in which, in many species, are formed stony plates, called shells, whose position and production are analogous to those of the mucous body. The nervous system is contained within this general envelope along with the viscera, and is composed of several scattered masses con- nected by nervous filaments; the chief of these masses is placed on the oesophagus, and is called the brain. Of the four senses, the organs of two only are observable, those of taste and sight, the lat- ter of which are even frequently wanting. One single family alone presents organs of hearing. There is always, however, a complete system of circulation, and particular organs for respiration. Those of digestion and secretion are nearly as complex as in the Vertebrata. We will distinguish the animals of this second form by the appella- tion of INTRODUCTION. 35 Animalia Mollusca, Or soft animals. Although, as respects the external configura- tion of the parts, the general plan of their organization is not as uniform as that of the Vertebrata; there is always an equal degree of resemblance between them in the structure and the functions. The third form is that remarked in Worms, Insects, &c. Their nervous system consists of two long cords, running longitudi- nally through the abdomen, dilated at intervals into knots or gan- glions. The first of these knots, placed over the oesophagus, and called brain, is scarcely any larger than those that are along the ab- domen, with which they communicate by filaments that encircle the oesophagus like a necklace. The covering or envelope of the body is divided by transverse folds into a certain number of rings, whose teguments are sometimes soft, and sometimes hard; the muscles, however, being always situated internally. Articulated limbs are frequently attached to the trunk; but very often there are none. We will call these animals Animalia Articulata, Or articulated animals, in which is observed the transition from the circulation in closed vessels, to nutrition by imbibition, and the corresponding one of respiration in circumscribed organs, to that effected by tracheee or air-vessels distributed throughout the body. In them, the organs of taste and sight are the most distinct; one single family alone presenting that of hearing. Their jaws, when they have any, are always lateral. The fourth form, which embraces all those animals known by the name of Zoophytes, may also properly be denominated Animalia Radiata, Or radiated animals. We have seen that the organs of sense and motion in all the preceding ones are symmetrically arranged on the two sides of an axis. There is a posterior and anterior dissimilar face. In this last division, they are disposed like rays round a cen- 36 INTRODUCTION. tre; and this is the case even when they consist of but two series, for then the two faces are similar. They approximate to the homo- geneity of plants, having no very distinct nervous system or particu- lar organs of sense; in some of them, it is even difficult to discover a vestige of circulation; their respiratory organs are almost univer- sally seated on the surface of the body, and the lowest of the series are nothing but a sort of homogeneous pulp, endowed with motion and sensibility. FIRST GREAT DIVISION OF THE ANIMAL KINGDOM. ANIMALIA VERTEBRATA. The bodies and limbs of vertebrated animals being supported by a frame-work or skeleton composed of connected pieces that are movable upon each other, their motions are certain and vigorous. The solidity of this support enables them to attain considerable size, and it is among them that the largest animals are found. The great concentration of the nervous system, and the volume of its central portions, give energy and stability to their sentiments, whence result superior intelligence and perfectibility. Their body always consists of a head, trunk and members. The head is formed by the cranium which contains the brain, and by the face which is composed of two jaws and of the receptacles of the senses. The trunk is supported by the spine and the ribs. The spine is formed of vertebras, the first of which supports the head, that move upon each other, and are perforated by an annular opening, forming together a canal, in which is lodged that medullary production from which arise the nerves, called the spinal marrow. The spine, most commonly, is continued into a tail, extending beyond the posterior members. The ribs are a kind of semicircular hoops which protect the sides of the cavity of the trunk; they are articulated at one extremity with the vertebrae, and most generally at the other with the sternum: 38 ANIMALIA VERTEBRATA. sometimes, however, they do not encircle the trunk, and there are genera in which they are hardly visible. There are never more than two pairs of members, but sometimes one or the other is wanting, or even both. Their forms vary ac- cording to the movements they have to execute. The superior members are converted into hands, feet, wings or fins, and the infe- rior into feet or fins. The blood is always red, and appears to be so composed as to sustain a peculiar energy of sentiment and muscular strength, but in various degrees, corresponding to their quality of respiration : from which originates the subdivision of the Vertebrata into four classes. The external senses are always five in number, and reside in two eyes, two ears, two nostrils, the teguments of the tongue, and those of the body, generally. In some species, however, the eyes are obliterated. The nerves reach the medulla through the foramina of the ver- tebrae or those of the cranium ; they all seem to unite with this medulla, which, after crossing its filaments, spreads out to form the various lobes of which the brain is composed, and terminates in the two medullary arches called hemispheres, whose volume is in pro- portion to the extent of the intelligence. There are always two jaws, the greatest motion is in the lower one, which rises and falls ; the upper jaw is sometimes immovable. Both of these are almost always armed with teeth, excrescences of a peculiar nature, which in their chemical composition are very similar to that of bone, but which grow by layers and transudation; one whole class, however, that of Birds, has the jaws invested with horn, and the genus Testudo, in the class of Reptiles, is in the same case. The intestinal canal traverses the body, experiencing various enlargements and contractions, having appendages and receiving solvent fluids, one of which, the saliva, is discharged into the mouth. The others, which are poured into the intestine only, have various names: the two principal ones are the juices of the gland called the pancreas, and bile, a product of another very large gland named the liver. While the digested aliment is traversing its canal, that portion of it which is fitted for nutrition, called the chyle, is absorbed by par- ticular vessels styled lacteals, and carried into the veins ; the residue ANIMALIA YERTEBRATA. 39 of the nourishment of the parts is also carried into the veins by vess- els analogous to these lacteals, and forming with them one same system called the lymphatic system. The blood which has served to nourish the parts, and which has just been renewed by the chyle and lymph, is returned to the heart by the veins—but this blood is obliged, either wholly or in part, to pass into the organ of respiration, in order to regain its arterial na- ture, previous to being again sent through the system by the arteries. In the three first classes this respiratory organ consists of lungs, that is, a collection of cells into which air penetrates. In Fishes only, and in some Reptiles, while young, it consists of branchiae or a series of laminae, between which water passes. In all the Vertebrata, the blood which furnishes the liver with the materials of the bile is venous blood, which has circulated partly in the parietes of the intestines, and partly in a peculiar body called the spleen, and which, after being united in a trunk called the venae porta, is again subdivided at the liver. Subdivision of the Vertebrata into Four Classes. We have just seen how far vertebrated animals resemble each other; they present, however, four great subdivisions or classes, characterised by the kind or power of their motions, which depend themselves on the quantity of their respiration, inasmuch as it is from this respiration that the muscular fibres derive the strength of their irritability. The quantity of respiration depends upon two agents: the first is the relative amount of blood which is poured into the respiratory organ in a given instant of time; the second is the relative amount of oxygen which enters into the composition of the surrounding fluid. The quantity of the former depends upon the disposition of the organs of circulation and respiration. The organs of the circulation may be double, so that all the blood which is brought back from the various parts of the body by the veins, is forced to circulate through the respiratory organ, pre- vious to resuming its former course through the arteries; or they may be simple, so that a part only of the blood is obliged to pass through that organ, the remainder returning directly to the bo dy. The latter is the case with Reptiles, The quantity of their respi- 40 ANIMALIA VERTEBRATA. ration, and all their qualities which depend on it, vary with the amount of blood thrown into the lungs at each pulsation. Fishes have a double circulation, but their organ of respiration is formed to execute its function through the medium of water; and their blood is only acted on by the portion of oxygen it contains, so that the quantity of their respiration is perhaps less than that of reptiles. In the Mammalia the circulation is double, and the aerial respi- ration simple, that is, it is performed in the lungs only; their quan- tity of respiration is, consequently, superior to that of Reptiles, on account of the form of their respiratory organ, and to that of Fishes from the nature of their surrounding element. The quantity of respiration in Birds is even superior to that of Quadrupeds, not only because they have a double circulation and an aerial respiration, but also because they respire by many other cavi- ties besides the lungs, the air penetrating throughout their bodies, and bathing the branches of the aorta, as well as those of the pul- monary artery. Hence result the four different kinds of motion for which the four classes of vertebrated animals are more particularly designed: Quadrupeds, in which the quantity of respiration is moderate, are generally formed to walk and run, both motions being characterized by precision and vigour; Birds, which have more of it, possess the muscular strength and lightness requisite for flight; Reptiles, where it is diminished, are condemned to creep, and many of them pass a portion of their lives in a kind of torpor; Fishes, in fine, to execute their motions, require to be supported in a fluid whose specific gra- vity is nearly as great as their own. All the circumstances of organization peculiar to each of these four classes, and those especially which regard motion and the ex- ternal sensations, have a necessary relation with these essential characters. The Mammalia, however, have particular characters in their viviparous mode of production, in the mammae by which they suckle their young, &c. The other classes, on the contrary, are oviparous, and if we com- pare them to the first, we shall find such numerous points of resem- blance as announce a peculiar system of organization in the great general plan of the Vertebrata. MAMMALIA. 41 CLASS I. MAMMALIA. The Mammalia are placed at the head of the animal kingdom, not only because it is the class to which Man himself belongs, but also because it is that which enjoys the most numerous faculties, the most delicate sensations, the most varied powers of motion, and in which all the different qualities seem combined in order to produce a more perfect degree of intelligence, the one most fertile in resources, most susceptible of perfection, and least the slave of instinct. As their quantity of respiration is moderate, they are designed in general for walking on the earth; but with vigorous and continued sieps. The forms of the articulations of their skeleton are, conse- quently, strictly defined, which determines all their motions with the most rigorous precision. Some of them, however, by means of limbs considerably elon- gated, and extended membranes, raise themselves in the air; others have them so shortened, that they can move with facility in water only, though this does not deprive them of the general characters of the class. The upper jaw, in all these animals, is fixed to the cranium; the lower is formed of two pieces only, articulated by a projecting condyle to a fixed temporal bone; the neck consists of seven verte- brae, one single species excepted which has nine; the anterior ribs are attached before, by cartilage, to a sternum consisting of several vertical pieces; their anterior extremity commences in a shoulder- blade that is not articulated, but simply suspended in the flesh, often resting on the sternum by means of an intermediate bone, called a clavicle. This extremity is continued by an arm, a fore-arm, and a hand, the latter being composed of two ranges of small bones called the carpus, of another range called the metacarpus, and of the fingers, each of which consists of two or three bones, termed pha- langes. With the exception of the Cetacea, the first part of the posterior extremity, in all animals of this class, is fixed to the spine, forming 42 a girdle or .pelvis, which, in youth, consists of three pairs of bones, the ilium which is attached to the spine, the pubis which forms the anterior part of the girdle, and the ischium, the posterior. At the point of union of these three bones is situated the cavity with which the thigh is articulated, to which, in its turn, is attached the leg, formed of two bones, the tibia and fibula; this extremity is termi- nated by parts similar to those of the hand, i. e. by a tarsus, meta- tarsus and toes. The head of the mammalia is always articulated by two condyles, with the atlas, the first vertebra of the neck. The brain is always composed of two hemispheres, united by a medullary layer, called the corpus callosum, containing the ventri- cles, and enveloping four pairs of tubercles, named the corpora striata or striated bodies, the thalami nervorum opticorum or beds of the optic nerves, and the nates, and testes. Between the optic beds is a third ventricle, which communicates with a fourth under the cerebellum, the crura of which always form a transverse promi- nence under the medulla oblongata, called the pons Varolii, or bridge of Varolius. The eye, invariably lodged in its orbit, is protected by two lids and a vestige of a third, and has its crystalline fixed by the ciliary processes—its sclerotic is simply cellular. The ear always contains a cavity called the tympanum, or drum, which communicates with the mouth by the Eustachian tube; the cavity itself is closed externally by a membrane called the membrana tympani, and contains a chain of four little bones, named the incus or anvil, malleus or hammer, the os orbiculare or circular bone, and the stapes or stirrup; a vestibule, on the entrance of which rests the stapes, and which communicates with three semicircular canals; and finally, a cochlea, which terminates by one canal in the vestibule, and by the other in the tympanum. Their cranium is subdivided into three portions; the anterior is formed by the two frontal and ethmoidal bones, the middle by the two ossa parietalia and the os ethmoides, and the posterior by the os occipitis. Between the ossa parietalia, the sphenoidalis and the os occipitis, are interposed the two temporal bones, part of which belong properly to the face. In the foetus, the occipital bone is divided into four parts: the sphe- noidal into two halves, which are again subdivided into three pairs of lateral wings; the temporal into three, one of which serves to MAMMALIA. MAMMALIA. 43 complete the cranium, the second to close the labyrinth of the ear, the third to form the parietes of the tympanum, &c. These bony portions, still more numerous in the earliest period of the foetal ex- istence, are united more or less promptly, according to the species, and the bones themselves finally become consolidated in the adult. Their face consists of the two maxillary bones, between which pass the nostrils; the two intermaxillaries are situated before, and the two ossa palati behind them; between these descends the vomer, a bony process of the os ethmoides; at the entrance of the nasal canal are placed the ossa nassi; to its external parietes adhere the inferior turbinated bones, the superior ones which occupy its upper and pos- terior portion belonging to the os ethmoides. The jugal or cheek bone unites the maxillary to the temporal bone on each side, and frequently to the os frontis; finally, the os unguis, and pars plana of the ethmoid bone occupy the internal angle of the orbit, and some- times a part of the cheek. In the embryo state these bones also are much more subdivided. Their tongue is always fleshy, connected with a bone called the hyoides, which is composed of several pieces, and suspended from the cranium by ligaments. Their lungs, two in number, divided into lobes, and composed of an infinitude of cells, are always enclosed, without any adhesion, in a cavity formed by the ribs and diaphragm and lined by the pleura; the organ of voice is always at the upper extremity of the trachea; a fleshy curtain, called the velum palati, establishes a direct com- munication between their larynx and nasal canal. Their residence on the surface of the earth rendering them less exposed to the alternations of cold and heat, their tegument (hair) is but moderately thick, and in such as inhabit warm climates, even that is rare. The Cetacea, which live exclusively in water, are the only ones that are altogether deprived of it. The young are nourished for some time after birth by a fluid (milk) peculiar to animals of this class, which is produced by the mammae at the time of parturition, and continues to be so as long as is necess- ary. It is from the mammae that this class derives its name, and being a character peculiar to it, they distinguish it better than any other that is external. 44 MAMMALIA. Division of the Mammalia into Orders. The variable characters which form essential differences among the Mammalia are taken from the organs of touch, on which depends their degree of ability or address, and from the organs of manduca- tion, which determine the nature of their aliment, and are all closely connected, not only with every thing relative to the function of di- gestion, but also with a multitude of other differences relating even to their intelligence. The degree of perfection of the organs of touch is estimated by the number and the pliability of the fingers, and from the greater or less extent to which their extremities are enveloped by the nail or the hoof. A hoof which completely envelopes the end of the toe, blunts its sensibility, and renders the foot incapable of seizing. The opposite extreme is when a nail, formed of one single lamina, covers only one of the faces of the extremity of the finger, leaving the other possessed of all its delicacy. The nature of the food is known by the grinders, to the form of which the articulation of the jaws universally corresponds. To cut flesh, grinders are required as trenchant as a saw, and jaws fitted like scissars, having no other motion than a vertical one. For bruising roots or grains, flat-crowned grinders are necessary, and jaws that have a lateral motion; in order that inequalities may always exist on the crown of these teeth, it is also requisite that their substance be composed of parts of unequal hardness, so that some may wear away faster than others. Hoofed animals are all necessarily herbivorous, and have flat- crowned grinders, inasmuch as their feet preclude the possibility of their seizing a living prey. Animals with unguiculated fingers were susceptible of more variety; their food is of all kinds, and independently of the form of their grinders, they differ greatly from each other in the pliability and delicacy of their fingers. There is one character with respect to this, which has immense influence on their dexterity, and greatly multiplies its powers; it is the faculty of opposing the thumb to the finger for the purpose of seizing minute objects, constituting what is properly called a hand; a faculty which is carried to its highest per- MAMMALIA. 45 fection in man, in whom the whole anterior extremity is free and capable of prehension. These various combinations, which strictly determine the nature of the different mammalia, have given rise to the following orders: ORDER I. BlMANA(l). Man forms but one genus, and that genus the only one of its order. As his history is the more directly interesting to ourselves, and forms the point of comparison to which we refer that of other animals, we will speak of it more in detail. We will rapidly sketch every thing that is peculiar in each of his organic systems, amidst all that he shares in common with other Mammalia; we will examine the advantages he derives from these peculiarities over other species; we will describe the principal varie- ties of his race and their distinguishing characters, and finally point out the natural order in which his individual and social faculties are developed. Peculiar Conformation of Man. The foot of Man is very different from that of the Monkey; it is large; the leg bears vertically upon it; the heel is expanded beneath; the toes are short, and but slightly flexible; the great toe, longer and larger than the rest, is placed on the same line with, and cannot be opposed to them. This foot, then, is peculiarly well adapted to support the body; but cannot be used for seizing or climbing, and as the hands are not calculated for walking, Man is the only true bimanous and biped animal. The whole body of Man is arranged with a view to a vertical position. Were he to desire it, Man could not, with convenience, walk on all fours; his short and nearly inflexible feet, and his long thigh, would bring the knee to the ground; his widely separated shoulders and his arms, too far extended from the median line, would ill support the upper portion of his body. The great indented muscle, which, in quadrupeds, suspends, as in a girth, the body between the scapulae, is smaller in Man than in any one among them. The head is also heavier, both from the magnitude of the brain and the smallness of the sinuses or cavities of the bones; and yet (1) Animals with two hands. 46 MAMMALIA. the means of supporting it are weaker, for he has neither a cervical ligament, nor are his vertebra so arranged as to prevent their flexure forwards; the x’esult of this would be, that he could only keep his head in the same line with the spine, and then his eyes and mouth being directed towards the earth, he could not see before him;—in the erect position, on the contrary, the arrangement of these organs is every way perfect. The arteries which are sent to his brain, not being subdivided as in many quadrupeds, and the blood requisite for so voluminous an organ being car- ried into it with too much violence, frequent apoplexies would be the con- sequence of a horizontal position. Man, then, is formed for an erect position only. He thus preserves the entire use of his hands for the arts, while his organs of sense are most favourably situated for observation. These hands, which derive such advantages from their liberty, receive as many more from their structure. The thumb, longer in proportion than that of the Monkey, increases its facility of seizing small objects. All the fingers, the annularis excepted, have separate movements, a faculty possess- ed by no other animal, not even by the Monkey. The nail, covering one side only of the extremity of the finger, acts as a support to the touch, without depriving it of an atom of its delicacy. The arms to which these hands are attached, are strongly and firmly connected by the large scapula, the strong clavicle, &c. Man, so highly favoured as to dexterity, is not at all so with respect to force. His swiftness in running is greatly inferior to that of other animals of his size. Having neither projecting jaws, nor salient canine teeth, nor claws, he is destitute of offensive weapons; and the sides and upper parts of his body being naked, unprovided even with hair, he is absolutely with- out defensive ones. Of all animals, he is also the longest in attaining the power necessaiy to provide for himself. This very weakness, however, is but one advantage more—it compels him to have recourse to that intelligence within, for which he is so emi- nently conspicuous. No quadruped approaches him in the magnitude and convolutions of the hemispheres of the brain, that is, in the part of this organ which is the pi’incipal instrument of the intellectual operations. The posterior portion of the same organ extends backwards; so as to form a second covering to the cerebellum; the vei*y form of his ci’anium aixnounces this magnitude of the brain, while the smallness of his face shows how slightly that portion of the nervous system which influences the external senses predominates in him. These external sensations, moderate as they all are in Man, are neverthe- less extremely delicate and well balanced. His two eyes are directed fonvards; he does not see on two sides at once, like many quadrupeds, which produces more unity in the result of his sight, and concentrates his attention more closely on sensations of this kind. The ball and iris of his eye vary but little; this l’estrains the activity of his sight to a limited distance, and a determined degree of light. His external ear, BIMAN A. 47 possessing- but little mobility or extent, does not increase the intensity of sounds, and yet, of all animals, he best distinguishes the various degrees of intonation. His nostrils, more complicated than those of the Monkey, are less so than those of all other genera; and yet he appears to be the only animal whose sense of smell is sufficiently delicate to be affected by un- pleasant odours. Delicacy of smell must have some influence on that of taste, and independently of this Man must have some advantage in this re- spect over other animals, those at least wrhose tongues are covered with scales. Lastly, the nicety of his tact results, both from the delicacy of his teguments, and the absence of all insensible parts, as well as from the form of his hand, which is better adapted than that of any other animal for suiting itself to every little superficial inequality. Man is pre-eminently distinguished in the organ of his voice; of all the Mammalia, he alone possesses the faculty of articulating sounds, its probable causes being the form of his mouth and the great mobility of his lips. From this results his most invaluable mode of communication, for of all the signs which can be conveniently employed for the transmission of ideas, variations of sound are those which, can be perceived at the greatest dis- tance, and are the most extensive in their sphere of operation. The whole of his structure, even to the heart and great vessels, appears to have been framed with a view to a vertical position. The heart is placed obliquely, on the diaphragm, and its point inclines to the left, thereby oc- casioning a distribution of the aorta, differing from that of most quadrupeds. The natural food of man, judging from his structure, appears to consist of the fruits, roots, and other succulent parts of vegetables; his hands offer him every facility for gathering them; his short, and but moderately strong jaws on the one hand, and his canini being equal in length to the remaining teeth, and his tubercular molares on the other, would allow him neither to feed on grass nor to devour flesh, were these aliments not previously pre- pared by cooking. Once, however, possessed of fire, and those arts by which he is aided in seizing animals or killing them at a distance, every living being was rendered subservient to his nourishment, thereby giving him the means of an infinite multiplication of his species. To complete the hasty sketch of the anatomical structure of Man requi- site for this introduction, we will add, that he has thirty-two vertebra;, of which seven belong to the neck, twelve to the back, five to the loins, five to the sacrum, and three to the coccyx. Seven pairs of his ribs are united with the sternum by elongated cartilages, and are called true ribs; the five following pairs are denominated false ones. His adult cranium is formed of eight bones; an occipitalis, two ossa temporis, two parietalia, and the frontal, ethmoidal and sphenoidal bones. The bones of his face are four- teen in number, two maxillaries, two ossa malae, each of which joins the temporal to the maxillary bone of its own side by a kind of handle called the zygomatic arch; two nasal bones, two ossa palati behind the palate, a vomer between the nostrils, two turbinated bones of the nose in the nos- trils, two lachrymals (unguis) in the internal angles of the orbits and the 48 MAMMALIA. single bone of the lower jaw. Each jaw has sixteen teeth; four cutting incisors in the middle, two pointed canines at the corners, and ten tubercu- lated molares, five on each side. At the extremity of the Spine of his sca- pula, is a tuberosity called the acromion, to which the clavicle is attached, and over its articulation is a point called the coracoid process with which certain muscles are connected. The radius revolves upon the ulna, owing to the mode of its articulation with the humerus. The carpus has eight bones, four in each range; the tarsus has seven; those of the remaining parts of the hand and foot may be easily counted by the number of fingers and toes. Scarcely has the body gained the full period of its growth in height, be- fore it begins to increase in bulk; fat accumulates in the cellular tissue, the different vessels become gradually obstructed, the solids become rigid, and, after a life more or less long, more or less agitated, more or less painful, old age arrives with decrepitude, decay, and death. Man rarely lives be- yond a hundred years, and most of the species, either from disease, acci- dent, or old age, perish long before that term. The child needs the assistance of its mother much longer than her milk, from this it obtains an education both moral and physical, and a mutual attachment is created that is fervent and durable. The nearly equal num- ber of the two sexes, the difficulty of supporting more than one wife, when wealth does not supply the want of power, all go to prove that monogamy is the mode of union most natural to our species. From the long period of infantile weakness springs domestic subordination, and the order of society in general, as the young people which compose the new families continue to preserve with their parents those tender relations to which they have so long been accustomed. This disposition to mutual assistance multiplies to an almost unlimited extent those advantages previously derived by insu- lated Man from his intelligence; it has assisted him to tame or repulse other animals, to defend himself from the effects of climate, and thus enabled him to cover the earth with his species. In other respects, he appears to possess nothing resembling instinct, no regular habit of industry produced by innate ideas; his knowledge is the result of his sensations and of his observation, or of those of his predecess- ors. Transmitted by speech, increased by meditation, and applied to his necessities and his enjoyments, they have originated all the arts of life. Language and letters, by preserving acquired knowledge, are a source of indefinite perfection to his species. It is thus he has acquired ideas, and made all nature contribute to his wants. There are very different degrees of development, however, in Man. The first hordes, compelled to live by fishing and hunting, or on wild fruits, and being obliged to devote all their time to search for the means of subsistence, and not being able to multiply greatly, because that would have Physical and Moral Development of Man. 49 destroyed the game, advanced but slowly. Their arts were limited to the construction of huts and canoes, to covering themselves with skins and the fabrication of arrows and nets. They observed such stars only as directed them in their journeys, and some few natural objects whose properties were of use to them. They domesticated the Dog, simply because he had a natural inclination for their own kind of life. When they had succeeded in taming the herbivorous animals, they found in the possession of numerous flocks a never failing source of subsistence, and also some leisure, which they employed in extending the sphere of their acquirements. Some in- dustry was then employed in the construction of dwellings and the making of clothes: the idea of property was admitted, and consequently that of barter, as well as wealth and difference of conditions, those fruitful sources of the noblest emulation and the vilest passions: but the necessity of search- ing for fresh pastures, and of obeying the changes of the seasons, still doomed them to a wandering life, and limited their improvements to a very narrow sphere. The multiplication of the human species, and its improvement in the arts and sciences, have only been carried to a high degree since the invention of agriculture and the division of the soil into hereditary possessions. By means of agriculture, the manual labour of a portion of society is adequate to the maintenance of the whole, and allows the remainder time for less ne- cessary occupations, at4the same time that the hope of acquiring, by industry, a comfortable existence for self and posterity, has given a new springto emu- lation. The discovery of a representative of property or a circulating me- dium, by facilitating exchanges and rendering fortunes more independent and susceptible of being increased, has carried this emulation to its highest degree, but by a necessary consequence it has also equally increased the vices of effeminacy and the furies of ambition. The natural propensity to reduce every thing to general principles, and to search for the causes of every phenomenon, has produced reflecting men, in every stage of society, who have added new ideas to those already obtained, nearly all of whom, while knowledge was confined to the few, endeavoured to convert their intellectual superiorityinto the means of domi- nation, by exaggerating their own merit, and disguising the poverty of their knowledge by the propagation of superstitious ideas. An evil still more irremediable, is the abuse of physical power: now that man only can injure man, he is continually seeking to do so, and is the only animal upon earth that is forever at war with his own species. Savages fight for a forest, and herdsmen for a pasture, and as often as they can, break in upon the cultivators of the earth to rob them of the fruits of their long and painful labours. Even civilized nations, far from being contented with their blessings, pour out each other’s blood for the prerogatives of pride, or the monopoly of trade. Hence, the necessity for governments to direct the national wars, and to repress or reduce to regular forms the quarrels of individuals. BIMANA. 50 MAMMALIA. The social condition of man has been restrained, or advanced by circum- stances more or less favourable. The glacial climates of the north of both continents, and the impenetrable forests of America are still inhabited by the savage hunter or fisherman. The immense sandy and salt plains of central Asia and Africa are covered with a pastoral people, and innumerable herds. These half civilized hordes as- semble at the call of every enthusiastic chief, and rush like a torrent on the cultivated countries that surround them, in which they establish them- selves, but to be weakened by luxury, and in their turn to become the prey of others. This is the true cause of that despotism which has always crush- ed and destroyed the industry of Persia, India, and China. Mild climates, soils naturally irrigated and rich in vegetables, are the cradles of agriculture and civilization, and when so situated as to be shel- tered from the incursions of barbarians, every species of talent is excited; such were (the first in Europe) Italy and Greece, and such is, at present, nearly all that happy portion of the earth. Varieties of the Human Species. Three races appear very distinct—the Caucasian or white, the Mongolian or yellow, and the Ethiopian or negro. The Caucasian, to which we’belong, is distinguished by the beauty of the oval formed by his head, varying in complexion and the colour of the hair. To this variety, the most highly civilized nations, and those which have generally held all others in subjection, are indebted for their origin. The Mongolian is known by his high cheek bones, flat visage, narrow and oblique eyes, straight black hair, scanty beard and olive complexion. Great empires have been established by this race in China and Japan, and their conquests been extended to this side of the Great Desert. In civiliza- tion, however, it has always remained stationary. The Negro race is confined to the south of mount Atlas; it is marked by a black complexion; crisped or woolly hair, compressed cranium, and a flat nose. The projection of the lower parts of the face, and the thick lips, evidently approximate it to the monkey tribe; the hordes of which it con- sists have always remained in the most complete state of utter barbarism. The race from which we are descended has been called Caucasian, be- cause tradition and the filiation of nations seem to refer its origin to that group of mountains situated between the Caspian and Black seas, whence, as from a centre, it has been extended like the radii of a circle. Various nations in the vicinity of Caucasus, the Georgians and Circassians, are still considered the handsomest on earth. The principal ramifications of this race may be distinguished by the analogies of language. The Armenian or Sy- rian branch, stretching to the south, produced the Assyrians, the Chaldeans, the hitherto untameable Arabs, who, after Mahomet, were near becoming masters of the world; the Phenicians, Jews and Abyssinians, which were Ara- bian colonies; and most probably the Egyptian. It is from this branch, BIMANA. 51 always inclined to mysticism, that have sprung the most widely extended forms of religion—the arts and literature have sometimes flourished among its nations, but always enveloped in a strange disguise and figurative style. The Indian, German, and Pelasgic branch is much more extended, and was much earlier divided, notwithstanding which, the most numerous affini- ties may be observed between its four principal languages—the Sanscrit, the present sacred language of the Hindoos, and the parent of the greater number of the dialects of Hindostan; the ancient language of the Pelasgi, common mother of the Greek, Latin, many tongues that are extinct, and of all those of the south of Europe; the Gothic or Teutonic, from which are derived the languages of the north and north-west of Europe, such as the German, Dutch, English, Danish, Swedish, and other dialects; and finally, the Sclavonian, from which spring those of the north-east, the Russian, Polish, Bohemian, &c. It is by this great and venerable branch of the Caucasian stock, that philosophy, the arts, and the sciences have been carried to the greatest perfection, and remained in the keeping of the nations which compose it for more than three thousand years. It was preceded in Europe by the Celts, who came from the north, whose tribes, once very numerous, are now confined to its most eastern extremity, and by the Cantabrians, who passed from Africa into Spain, now confound- ed with the many nations whose posterity have intermingled in that pen- insula. The ancient Persians originate from the same source as the Indians, and their descendants to the present hour bear great marks of resemblance to the people of Europe. The predatory tribes of the Scythian and Tartar branch, extending at first to the north and north-east, always wandering over the immense plains of those countries, returned only to devastate the happier abodes of their more civilized brethren. The Scythians, who, at so gemote a period, made irruptions into upper Asia; the Parthians, who there destroyed the Greek and Roman domination; the Turks, who there subverted that of the Arabs, and subjugated in Europe the unfortunate remnant of the Grecian people, all swarmed from this prolific branch. The Finlanders and Hun- garians are tribes of the same division, which have strayed among the Sclavonic and Teutonic nations. Their original country, to the north and north-east of the Caspian sea still contains inhabitants who have the same origin, and speak similar languages, but mingled with other petty nations, variously descended, and of different languages. The Tartars remained unmixed longer than the others in the country included between the mouth of the Danube to beyond the Irtisch, from which they so long menaced Russia, and where they have finally been subjugated by her. The Mon- goles, however, have mingled their blood with that of those they conquered, many traces of which may still be found among the inhabitants of lesser Tartary. It is to the east of this Tartar branch of the Caucasian race that the Mon- 52 MAMMALIA. golian race begins, whence it extends to the eastern ocean. Its branches, the Calmucs, &c. still wandering shepherds, are constantly traversing the desert. Thrice did their ancestors under Attila, Genghis, and Tamerlane, spread far the terror of their name. The Chinese are the earliest and most civilized branch not only of this race, to which they belong, but of all the nations upon earth. A third branch, the Mantchures, recently con- quered, and still govern China. The' Japanese, Coreans, and nearly all the hordes which extend to the north-east of Siberia, subject to Russia, are also to be considered, in a great measure, as originating from this race; and such also is esteemed the fact, with regard to the original inhabitants of various islands of that Archipelago. With the exception of a few Chi- nese literati; the different nations of the Mongoles are universally addicted to Buddism, or the religion of Fo. The origin of this great race appears to have been in the mountains of At- lai, but it is impossible to trace the filiation of its different branches with the same certainty as we have done those of the Caucasian. The history of these wandering nations is as fugitive as their establishments, and that of the Chinese, confined exclusively to their own empire, gives us nothing satisfactory with respect to their neighbours. The affinities of their lan- guages are also too little known to direct us in this labyrinth. The languages of the north of the peninsula beyond the Ganges, as well as that of Thibet, are somewhat allied to the Chinese, at least in their mo- nosyllabic structure, and the people who speak them have features some- what resembling other Mongoles. The south of this peninsula, however, is inhabited by Malays, whose forms approximate them much nearer to the In- dians, whose race and language are extended over all the coasts of the islands of the Indian Archipelago. The innumerable little islands of the southern ocean are also peopled by a handsome race, nearly allied to the Indians, whose language is very similar to the Malay; in the interior of the largest of these islands, particularly in the wilder portions of it, is another race of men, with black complexions, crisped hair, and negro faces, called Al- fourous. On the coast of New Guinea, and in the neighbouring islands, we find other negroes, nearly similar to those of the eastern coast of Africa, named Papuas; to the latter, are generally referred the people of Van-Die- men’s land, and those of New Holland to the Alfourous. These Malays, and these Papuas are not easily referable to either of the three great races of which we have been speaking, but can the former be clearly distinguished from their neighbours, the Caucasian Hindoos and the Mongolian Chinese? As for us, we confess we cannot discover any suffi- cient characteristics in them for that purpose. Are the Papuas Negroes, which may formerly have strayed into the Indian ocean ? We posess neither figures nor descriptions sufficiently precise to enable us to answer this question. The northern inhabitants of both continents, the Samoiedes, the Lap- landers, and the Esquimaux, spring, according to some, from the Mongolian BIMAN A. 53 race, while others assert that they are mere degenerate offsets from the Scythian and Tartar branch of the Caucasian stock. We have not yet been able to refer the Americans to any of the races of the eastern continent; still, they have no precise nor constant character which can entitle them to be considered as a particular one. Their copper coloured complexion is not sufficient; their generally black hair and scanty beard would induce us to refer them to the Mongoles, if their defined fea- tures, projecting nose, large and open eye, did not oppose such a theory, and correspond with the features of the European. Their languages are as numberless as their tribes, and no demonstrative analogy has as yet been obtained, either with each other, or with those of the old world. ORDER II. QUADRUMANA(l). Independently of the anatomical details which distinguish it from Man, and which have been given, this family differs from our spe- cies in a very remarkable way. All the animals belonging to it have the toes of the hind feet free and opposable to the others, and the toes are all as long and flexible asfingei’s. In consequence of this, the whole species climb trees with the greatest facility, while it is only with pain and difficulty they can stand and walk upright; their foot then resting on its outer edge only, and their narrow pelvis being unfavourable to an equilibrium. They all have intestines very similar to those of man; the eyes directed forwards. The brain has three lobes on each side, the posterior of which covers the cere- bellum, and the temporal fossae are separated from the orbits by a bony partition. In every thing else, however, they gradually lessen in resemblance to him, by assuming a muzzle more and more elon- gated, a tail and a gait more like that of quadrupeds. Notwithstand- ing this, the freedom of their arms and the complication of their hands allow them all to perform many of the actions of man as well as to imitate his gestures. They have long been divided into two genera, the Monkeys and the Lemurs, which, by the multiplication of secondary forms, have now become two small families, between which we must place a (1) Animals with four hands. 54 MAMMALIA. third genus that of the Ouistitis, as it is not conveniently referable to the one or the other. Simia, Lin. The Monkeys are all quadrumana, which have four straight incisors in each jaw, and flat nails on all the extremities; two characters which ap- proximate them them more nearly to Man, than the subsequent genera; their molars have also blunt tubercles like ours, and their food consists chiefly of fruits. Their canine teeth, however, being longer than the rest, supply them with weapons we do not possess, and which require a hollow in the opposite jaw, to receive them when the mouth is closed. They may be divided, from the number of their molar teeth, into two principal subgenera, which are again subdivided into numerous groups. The Or those of the eastern continent, have the same number of grinders as Man, but otherwise differing from each other by characters, which have formed the grounds of the following subdivisions. The Monkeys, properly so called, The Ourangs(l), are the only monkeys of the ancient continent which have no callus on the seat. Their nose is not prominent, they have no cheek-pouches, nor a vestige of a tail. Some of them have arms long enough to reach the ground when standing—their legs, on the contrary, are very short. S. satyrus, L. (The Ourang-Outang.) Of all animals, this Ourang is considered as approaching most nearly to Man in the form of hishead, height of forehead, and volume of brain; but the exaggerated descriptions of some authors respecting this resemblance, are partly to be attributed to the fact of their being drawn from young individuals only; and there is every reason to believe, that with age, their muzzle becomes much more prominent. The body is covered with coarse red hail*, the face bluish, and the hinder thumbs very short compared with the toes. His lips are susceptible of a singular elongation, and possess great mobility. His history has been much disfigured by mingling it with that of the other great monkeys, that of the Chimpanse in particular. After a strict and critical examination, I have ascertained that the Ourang-Outang inhabits the most eastern coun- tries only, such as Malabar, Cochin China, and particularly the great island of Borneo, whence he has been occasionally brought to Europe by the way of Java. When young, and such as he appears to us in his captivity, he is a mild and gentle animal, easily rendered tame and affectionate, which is Simia, Erxl.—Pithecus, Geoffr. (1) Orang is a Malay word signifying1 reasonable being, which is applied to man, the ourangoutang, and the elephant. Outang means wild, or of the woods; hence, Wild Man of the Woods. QUADRUMANA. 55 enabled by his conformation to imitate many of our actions, but whose intelligence does not appear to be as great as is imported, not much sur- passing even that of the Dog. There is a monkey in Borneo, hitherto known only by his skeleton, called the Pongo, which so closely resembles the Ourang-Outang in the propor- tions of all his parts, that we are tempted to consider him an adult—if not of the species of the Ourang-Outang, at least of one very nearly allied to it. /He is the largest monkey known, and in size is nearly equal to Man. The arms of the remaining Ourangs reach only to the knee. They have no forehead, and the cranium retreats from the crest of the eye-brow. The name of Chimpaxses might be exclusively applied to them. S. Troglodytes, L. (The Chimpans6) is covered with black or brown hair. Could any reliance be placed on the accounts of travellers, this animal must be equal or superior to man in stature, but no part of it hitherto seen in Europe indicates this extraordinary size. It inhabits Guinea and Congo, lives in troops, constructs huts of leaves and sticks, arms itself with clubs and stones, and thus repulses men and elephants. Naturalists have gene- rally confounded it with the Ourang-Outang. When domesticated he soon learns to walk, sit, and eat like a man. We now separate the Gibbons from the Ourangs. Hieobates, Illig. The Gibbons have the long arms of the true Ourangs, and the low fore- head of the Chimpans£, along with the callous seat of the Guenons, differ- ing however from the latter in having no tail or cheek-pouch. They all inhabit the most remote parts of India. S. lar. L. (The Black Gibbon) is covered with coarse black hairs, and has a whitish circle round his face. There are several other species. Cercopithecus, Erxl. The long-tailed monkeys haye a moderately prominent muzzle (of 60°); cheek-pouches; tail; callosities on the seat; the last of the inferior molars with four tubercles like the rest. Numerous species, of every variety of size and colour, abound in Africa, live in troops, and do much damage to the gardens and fields under cultivation. They are easily tamed. Simia rubra, Gm. (The Patras.) Red fawn colour above, whitish below; a black band over the eyes, sometimes surmounted with white— from Senegal. The Differs from the Long-tailed Monkeys, by having an additional small tubercle on the last of the inferior molares. These animals inhabit eastern countries, and their long limbs and very long tail give them a very peculiar appearance. Their muzzle projects very little more than that of the Gib- bons, and like them, they have callosities on the seat. They appear, Semnopithectjs, Fred. Cuv. 56 MAMMALIA. likewise, to have no cheek-pouches; their larynx is furnished with a sac. The one longest known is the Sim. nemxus, L. Remarkable for its lively and varied colouring; body and arms grey; hands, thighs and feet black; legs of a lively red; the tail and a large triangular spot upon the loins, white; face orange; he has a black and red collar, and tufts of yellow hairs on the sides of the head; inhabits Cochin China. All the animals of this denomination have a fifth tubercle on their last molars, and callosities and cheek pouches like a Guenon. The limbs are shorter and thicker than in a Semnopithecus; the muzzle more projecting, and the superciliary ridge more inflated than in either the one or the other. Though docile when young, they become unmanageable when old. They all have a sac which communicates with the larynx under the thyroid car- tilage, and which, when they cry out, becomes filled with air. Sim. silenus and leonina, L. (The Maned Macaque.) Black; ash-col- oured mane and whitish beard which surround the head. From Ceylon. Some of the Macaques are distinguished by a short tail. M. rhesus. (The Pig-tailed Baboon.) Greyish; a fawn-coloured tinge on the head and crupper, sometimes on the back; face flesh-colour; tail reaching below the hamstrings. From Bengal. Macacos, or Macaques. Inuus, Cuv. The Inui are mere Macaques, which have a small tubercle in lieu of a tail. Cynocrphaetts, C.(l) The Dog headed-Monkeys, together with the teeth, cheek-pouches and callosities of the Inuus, Cuv., have an elongated muzzle truncated at the end, in which the nostrils are pierced, giving it a greater resemblance to that of a dog than of any other monkey; their tail varies in length. They are generally large, ferocious and dangerous animals, found mostly in Africa. C. papio, Desm. (The Guinea Baboon.) Yellow, vergingmore or less on a brown; tufts of the cheeks fawn-coloured; face black; tail long. They are found of various sizes, owing probably to the difference of age. When full grown, frightful from their ferocity and brutality. From Guinea. The Of all the Monkeys, have the longest muzzle (30°); their tail is very short; they are brutal and ferocious; nose as in the preceding. Sim. maimon and mormon, Lin. (The Mandrill.) Greyish brown, in- Mandru-is, (1) Cynocephalus, dog’s head. QUADRUMANA. 57 dining to olive above; cheeks blue and furrowed. The nose in the adult male becomes red, particularly at the end, where it is scarlet, which has been the cause of its being deemed, erroneously, a distinct species. It is difficult to imagine a more hideous or extraordinary animal. He nearly at- tains the size of a man, and is a terror to the negroes of Guinea. Many details of his history have been mixed up with that of the Cliimpanse, and consequently with that of the Ourang-Outang. Have four grinders more than the others—thirty-six in all; the tail long; no cheek-pouches; seat hairy; no callosities; nostrils opening on the sides of the nose, and not underneath. All the great Quadrumana of America belong to this division. The tails of some of them are prehensile—that is, their extremity can twist round a body with sufficient force to seize it as with a hand. They are more particularly designated by the name of Sapajous. At their head may be placed the Alouattes (Mycetes, Illig.), which are distinguished by a pyramidal head, the upper jaw of which descends much below the cranium, as the branches of the lower one ascend very high for the purpose of lodging a bony drum, formed by a vesicular inflation of the hyoid bone, which communicates with the larynx, and gives to their voice astonishing power, and a most frightful sound. Hence their name of Howling Monkeys. The prehensile portion of the tail is naked beneath. There are several species, whose distinguishing characters are not yet well ascertained, for the colour of the fur on which they are established varies with the age and sex. Simla seniculus, Buff. (Red Howling Monkey.) It is often sent to us from the forests of Guiana, where it lives in troops; size that of a large fox; colour, a reddish chesnut, rather deeper at the head and tail. The Common Sapajous have the head flat, and the projection of the muzzle very moderate—facial angle 60°. In some of them, the anterior thumbs are either totally, or nearly so, hid- den under the skin, and the prehensile part of the tail naked beneath. M. Geoff, has formed them into a genus by the name of Ateles. The Monkeys of America Lagothrix, Geoff.—Gastrimargus, Spix. Head round, a thumb like the Alouattes; tail partly naked. Such are the L. Humboldii, Geoff., the Capparo, and the Grison or the Silver-haired Monkey; Monkeys from the interior of South America, said to be remark- able gluttons. The other Sapajous have a round head, distinct thumbs, and the tail hairy, though prehensile. The species are more numerous than those of the Alouatte, and are characterised with nearly as much difficulty. Some of them have the hairs on the forehead of a uniform length, such as the Sim. appella, L. (The Sajou); and the S- capucina, L. (The Capuchin.) 58 MAMMALIA. Both of them of different browns; in the first, the circumference of the face is blackish; in the second it is whitish; but the shade of colour in all the rest of their bodies varies between a brownisli black and a fawn-colour, sometimes even a white. The shoulders and breast are however generally lighter and the calotte and hands darker. Others, again, have the hairs of the forehead so disposed as to form a kind of aigrette, such as the Sim. fatuellus, Gm. (The Horned Sajou.) This animal has a tuft of black hairs on each side of the forehead. The disposition of these Monkeys is mild and gentle, their motions quick and light, and they are easily tamed. Their name of Weeping Monkeys is derived from their soft plaintive voice. In the Saimibi the tail is depressed, and almost ceases to be prehensile; the head is very much flattened; in the interorbitar partition of the skeleton there is a membranous space. There is only one known; the Simia sciurea, Buff. (The Siamiri.) Size of a Squirrel; of a yellowish grey; fore-arms, legs, and the four extremities of a yellowish fawn-colour; end of the nose black. Those of the American monkeys, whose tails are not at all prehensile, are called S akis. Several of them have that appendage long and tufted, whence they have been also termed Fox-tailed Monkeys: their teeth project for- wards more than those of the others. They are the Pithecia of Desmarets and Illigei'. Simia pithecia, L. (The Yarke.) Blackish; circumference of the face whitish. Spix distinguishes those species whose tails, although tufted, are shorter than the body, by the name of BnACHiunus. His Br. Ouaraki has a fawn- coloured body; head, neck, arms and feet black. In some, also, the Caelitiiiiix, Geoff, or Sagouins, Fr. Cuv. the tail is slender, and the teeth do not project. The Saimiri were associated with them for a long time, but the head of the Sagouins is higher, and their canine teeth much shorter. Such is the Call, personata, Geoff. (The Masked Monkey.) A yellowish grey; head and hands black. The NocTHontrs, Fred. Cuv. Only differs from the Sagouins in its great nocturnal eyes, and in the ears, which are partly hidden under the hair. One species only is known, Nodh. irivirgata, Fred. Cuv. (The Douroucouli.) Ash-coloured above, yellowish beneath; a black vertical line on the middle of the forehead, and one on each temple. It is a nocturnal animal of South America. They are all from Guiana or Brazil. A small genus, similar to the Sakis, and for a long time confounded with them in the great genus of monkeys. In fact, like the generality of the Ouistitis. QUADRUMANA. 59 American monkeys, they have the head round; visage flat; nostrils lateral; no cheek-pouches, and, like the Sakis in particular, the tail not prehensile. They have only, however, twenty grinders, like the monkeys of the east- ern continent; all their nails are compressed and pointed, those of the hind thumbs excepted, while their anterior ones are so slightly separated from the fingers, that it is with hesitation we assign to them the name of quad- rumana. They are pretty little creatures, of agreeable forms, and easily tamed. M. Geoffroy distinguishes the Ouistitis, properly so called, which he names Jaccuus and whose peculiar characters are pointed inferior incisors, arranged on a curved line, equal to the canines. Their tail is annulated and well covered with hairs; the ears generally ornamented with a tuft. Sim. jacchus, Lin.; in Paraguay the Titi. (The Common Ouistiti.) Tail tolerably well tufted, coloured in rings of brown and white; body greyish- brown; two large tufts of white hairs before the ears. From nearly every part of South America. Lemur, Lin. The Lemurs, according to Linnxus, comprehend all the Quadrumana which have in either jaw incisors differing in number from four, or at least diffe- rently directed from those of the Monkeys. This negative character could not fail to embrace very different beings, while it did not even unite those which should be combined. Geoffroy has established several divisions in this genus which are much better characterized. The four thumbs of these animals are well developed and opposable, and the first hind finger is armed with a pointed, raised nail; all the other nails are flat. Their fur is woolly; and their teeth begin to exhibit sharp tubercles catch- ing in each other as in the Insectivora. Six incisors in the lower jaw compressed and slanting forwards, four in the upper that are straight, the intermediate ones being separated from each other; trenchant canines; six molares on each side above, six below; ears small. They are very active animals, which, from their pointed heads, have been called Fox-nosed Monkeys. Their food is fruit. Their species are very numerous, and are only met with in the island of Madagascar, where they appear to replace the Monkeys, none of which it is said are to be found there. Nearly all the difference that exists between them is in the colour. Lemur.—Makis, properly so called. Ixdris.—Licuanotus, Illig. Teeth like the preceding-, except that there are only four below. One species only is known; it has no tail; is three feet high; black; face grey; the Lemur Indri of Sonnerat, Voy. I, pi. 86. The inhabitants of Madagascar tame and train it like a dog for the chase. 60 MAMMALIA. Loris.—Stenops, Illig. The Lazy Monkeys, as they are called, have teeth like the Makis, the grinders excepted, the points of which are more acute; the short muzzle of a mastiff; body slender; no tail; large eyes; tongue rough. They feed on insects, occasionally on small birds and quadrupeds, their gait is excessively slow, and mode of life nocturnal. Two species only are known, both of them from the East Indies: one is the Lem. tardigradus, L. (The Slow Loris, or Sloth of Bengal.) Fawn- coloured grey, a brown streak along the back; two of the upper incisors sometimes wanting. The second species is called the Slender Loris. Galago, Geoff.—Otolincus, Illig. The teeth and insectivorous regimen of the preceding; elongated tarsi which produce a disproportion in the dimensions of their hind feet; a long tufted tail; large membranous ears and great eyes, which announce noc- turnal habits. There are several species known, all from Africa. It appears also that we should refer to them an animal of that country (Lemur potto, Gm.), whose gait is said to be as slow as that of the Loris and Sloths. Tarsius. Elongated tarsi, and all the other details of form belonging to the pre- ceding division; but the space between the molars and incisors is occupied by several shorter teeth; the middle superior incisors are lengthened and resemble canini. The muzzle is very short, and the eyes still larger than hose of the Galago. They are nocturnal animals, and feed on insects. *• rom the Moluccas. Lemur spectrum, Pall. ORDER III. CARNARIA(l). This order consists of a considerable and varied assemblage of unguiculated quadrupeds, possessing like Man and the Quadru- mana the three sorts of teeth, but which have no opposable thumb to their fore-feet. Their food is animal, and the more exclusively so, as their grinders are the more trenchant. Such as have them wholly or partly tuberculous, take more or less vegetable aliment, (1) Flesh eating- animals. CARNARIA. 61 and those in which they are bristled with points live principally on Insects. The articulation of their lower jaw, being transversely directed and hinge-like, allows of no lateral motion; it can only open and shut. Although the convolutions of the brain are still tolerably well marked, it has no third lobe, nor does it cover the cerebellum any more than in the following families; the orbit is not separated from the temporal fossa in the skeleton; the cranium is narrowed and the zygomatic arches widened and raised, in order to give more strength and volume to the muscles of their jaws. Their predominant sense is that of smell, and their pituitary membrane is generally spread over numerous bony laminae. The fore-arm has still the power of revolving in nearly all of them, although with less facility than in the Quadrumana, and they never have the thumb of the anterior extremities opposed to the other toes. On account of the substan- tial nature of the aliment, and to avoid the putrefaction it would undergo by remaining too long in an elongated canal, their intes- tines are less voluminous. There is a great variety in their forms and in the details of their organization, which produces analogous differences in their habits, and to such an extent as makes it impossible to arrange their ge- nera on one line, and compels us to form them into several families, which are variously connected by multiplied relations. FAMILY I. CHEIROPTERA. This family still retains some affinity with the Quadrumana. Their distinguishing character consists in a fold of the skin, which, commencing at the sides of the neck, extends between their four feet and toes, supports them in the air, and even enables such of them to fly as have their hands sufficiently developed for that pur- pose. This disposition required strong clavicles and large scapulae to give the necessary solidity to the shoulder, but it was incompati- ble with the rotation of the fore-arm, which would have diminished the force of the stroke requisite for flight. They have all four great canini, but the number of their incisors varies. They have long been divided into two genera, founded upon the extent of their or- 62 MAMMALIA. gans of flight. The first of these, however, requires several subdi- visions. Vespertilio, Lin. The arms, fore-arms and fingers of the Bats are excessively lengthened, forming, with the membrane that occupies their intervals, true wings, pos- sessing even a greater extent of surface than those of Birds—they conse- quently fly very high, and with great rapidity. The thickness of their pectoral muscles is proportioned to the motions they have to execute, and there is a ridge in the middle of the sternum like that of Birds, to which they are attached. The thumb is short and armed with a claw, by which they are enabled to creep and to suspend themselves. Their hind feet are weak and are divided into five toes, almost always of equal length, armed with trenchant and pointed nails. Their eyes are excessively small, but their ears are frequently very large, and together with the wings form a vast membranous surface, which is almost naked, and so extremely sensi- ble that it is probable they guide themselves through all the sinuosities of their labyrinths, even after their eyes have been plucked out, solely by the diversity of the impressions of the air. They are nocturnal, and in our climate pass the winter in a state of stupor. During the day they suspend themselves in obscure places. They generally produce two young ones at a birth, which cling to their mammae, and whose size is considerable in proportion to that of the mother. This genus is very numerous, and offers many subdivisions. We must begin by separating from it the Pteropus, Bris. Trenchant incisors in each jaw, and grinders with flat crowns; the food, consequently, consists chiefly of fruit, of which it destroys considerable quantities; it also successfully pursues birds and small quadrupeds. It is the largest Bat known, and the flesh is eaten. It inhabits the East Indies. They have never been found out of the south of Asia or the Indian Ar- chipelago. a. Without tails, and four incisors in each jaw. P. edulis, Geoff. (The Black Roussette.) Blackish brown, deepest be- neath, wings nearly four feet from tip to tip. From the Moluccas and the straits of Sunda, where they are found in great numbers during the day suspended to the trees. b. With a small tail and four incisors in each jaw. M. Geoffroy was the first who described the species of this subdivision. One of them grey and woolly, Pter. scgypticus, is found in the caves of Egypt. The Pteropi being taken away, we have the true Bats left, which are all insectivorous, and have three grinders on each side in each jaw, bristled CARNARIA. 63 with conical points, they are preceded by a variable number of false molars. Their index never has a nail, and, one subgenus excepted, the membrane is always extended between the two legs. They should be divided into two principal tribes. The first has three ossified phalanges in the middle finger of the wing, but the remainder, in- cluding the index itself, consists of but two. The tribe of true bats is now divided into numerous subgenera such as JYTolossus, Nodilio, Vampirus, &c. &.C., distinguished by the absence or presence of a tail, the fact of its being free above the membrane or in- volved in it, the presence of a membrane on the nose, number of incisors, &c. &c. The Galeopitheci differ generically from the Vespertilios, in the fingers, all ai'med with trenchant nails, which are not longer than the toes, so that the membrane which occupies their intervals, and extends to the sides of the tail, can only act as a parachute. The canini are denticulated and short like the molars. There are two upper denticulated incisors widely separated from each other, below there are six, split into narrow strips, like a comb, a structure altogether peculiar to this genus. The animals belonging to it are found in the Indian Archipelago, on the trees, among which they pursue Insects, and perhaps Birds. If we can judge by the injury the teeth sustain from age, they use fruit also. One species only is well ascertained, the Flying Lemur. Fur greyish red above, reddish below; spotted and striped with various shades of grey when young. From the Molucca islands, straits of Sunda, &c. All the other Carnaria have the mammae situated under the ab- domen. Galeopitiiecus, Pall. FAMILY II. INSECTIVORA. The animals of this family, like the Cheiroptera, have grinders studded with conical points, and lead a nocturnal or subterraneous life. Their principal food is Insects, and in cold climates many of them pass the winter in a torpid state. Unlike the Bats, they have no lateral membranes, although they always have clavicles. Their feet are short and their motions feeble. In walking they all place the whole sole of the foot on the ground. They differ from each other by the relative position and propor- tions of their incisors and canini. 64 MAMMALIA. Some have long incisors in front, followed by other incisors and canini, all even shorter than the molars, a kind of dentition of which the Tarsiers, among the Quadrumana, have already given us an example, and which somewhat approximates these animals to the Rodentia. Others have large separated canini, between which are placed small incisors, the most usual disposition of these parts among the Quadrumana and the Carnaria; and these two systems of dental arrangement are found in genera, otherwise very similar in the te- guments, shape of the limbs, and mode of life. Erinaceus, Lin. The body of the Hedgehog is covered with spines instead of hairs. The skin of the back is furnished with such muscles, as, by inclining’ the head and feet towards the abdomen, enable the animal to shut himself up in it, as in a purse, presenting his spines on all sides to the enemy. The tail is very short, and there are five toes to each foot. There are six incisors in each jaw, the middle ones being the longest, and on each side three false molars, three bristled with points, and a small one studded with tu- bercles(l). E. europxus, L.; Buff. (The Common Hedgehog.) Ears short; com- mon in the woods and hedges; passes the winter in its burrow. To Insects, which constitute its ordinary diet, it adds fruit, by which at a cer- tain age its teeth become worn. The skin was formerly used to dress hemp. Centenes, Illig. The body of the Tenrec is covered with spines like the Hedgehog. It does not however possess the faculty of rolling itself so completely into a ball: there is no tail; the muzzle is very pointed, and the teeth are very different. There are four or six incisors, and two great canini in each jaw. Behind the canini are one or two small teeth, and four triangular and bristled molars. Three species are found in Madagascar, the first of which has been naturalized in the Isle of France. It is a nocturnal animal, which passes three months of the year in a state of lethargy, although inhabiting the torrid zone. Brugiere even assures us that it is during the greatest heats that they grow torpid. Erinaceus ecaudalus, L. (The Tenrec.) Covered with stiff spines; only four notched incisors below. It is the largest of the three, and exceeds the Hedgehog in size. (1) Pallas has noted as an interesting fact, that the Hedgehog eats hun- dreds of Cantharides without inconvenience, while a single one produces the most horrible agony in the Dog and the Cat. 65 CARNAR1 A. Cladobates, Fr. Cuv. This is a new genus from the Indian Archipelago. The teeth have much affinity with those of the Hedgehog; their middle upper incisors, however, are proportionally shorter, and the four lower ones elongated; there is also no tubercular one behind. The animal is covered with hair, has a long shaggy tail, and, contrary to the habits of other Insectivora, climbs trees with the agility of a Squirrel; the pointed muzzle, however, makes the animal easily distinguishable even at a distance. Sorex, Lin. The Shrews are generally small, and covered with hair. Under this, and upon each flank, there is a small band of stiff, thickly set setse, from be- tween which oozes an odorous fluid, the product of a peculiar gland. The two middle upper incisors are hooked and dentated at their base, the lower ones slanting and elongated: five small teeth on each side follow the first, and two only the second. There are moreover in each jaw three bristled molars, and in the upper one the last is a small tuberculous tooth. This animal lives in holes it excavates in the earth, which it seldom leaves till evening, and lives on worms and insects. Sor. araneus, L. (The Common Shrew.) Grey above; ash-coloured beneath; tail square, and not so long as the body by one-third; teeth white; ears naked and exposed; common in the fields, &c. There are several other species, one of which (the Rat-tailed Shrew) the Egyptians were in the habit of embalming. Mygale, Cuv The Desmans differ from the Shrews in two very small teeth placed be- tween the two great lower incisors, and in their two upper incisors which are flattened and triangular. Behind these incisors are six or seven small teeth and four bristled molars. Their snout is drawn out into a little flexi- ble proboscis, which they keep constantly in motion. Their long tail, scaly and flattened on the sides, with their feet of five fingers all united by membranes, evidently proclaim them to be aquatic animals. Their eyes are very small, and they have no external ears. Sorex moschatus, L. (The Russian Muskrat.) Nearly as large as a Shrew; above blackish, beneath whitish; tail not so long as the body by one-fourth. Southern Russia. Chrysochloris, Lacep. Animals of this genus, like those of the preceding one, have two incisors above and four below; but their grinders are long, distinct and almost all shaped like triangular prisms- Their muzzle is short, broad, and recurved, and their fore-feet have only three nails, of which the external, that is very large, much arcuated and pointed, serves them as a powerful instrument 66 MAMMALIA. for excavating and piercing the earth; the others regularly decrease in size. The hind feet have five of an ordinary size. They are subterraneous ani- mals, whose mode of life is similar to that of Moles. To enable them to dig the better, their fore-arm is supported by a third bone placed under the cubitus. C. asiaticus. (The Golden Mole.) A little smaller than the European Mole; no apparent tail; is the only known quadruped that presents any appearance of those splendid metallic tints which brighten and adorn so many Birds, Fishes and Insects. Its fur is a green, changing to a copper or bronze; there is no conch to the ear, and the eye is not perceptible. No one is ignorant of this curious animal, the Mole, whose form so per- fectly qualifies it for a subterraneous mode of life. A very short arm attached to a long1 scapula, supported by a powerful clavicle and furnished with enormous muscles, sustains an extremely large hand, the palm of which is always directed either outwards or backwards; the lower edge of this hand is trenchant, the fingers are scarcely perceptible, but the nails in which they terminate are long, flat, strong and sharp. Such is the instru- ment employed by the Mole to tear the earth and throw it behind it. Its sternum, like that of Birds and Bats, has a process which gives to the pec- toral muscles the size that is required for their functions. To pierce and raise up the earth, it makes use of its long pointed head, whose muzzle is armed at its extremity with a peculiar little bone, and whose muscles are extremely powerful. There is even an additional bone in the cervical ligament. It has but little power behind, and moves as slowly above ground as it advances rapidly under it. Its sense of hearing is very acute, and the tympanum very large, although there is no external ear; its eyes are so small and so hidden by the hair, that for a long time their existence was positively denied. The jaws are weak, and the food consists of Worms, Insects, and some soft roots. There are six incisors above and eight below. The canini have two roots, which causes them to partake of the nature of false molars; back of them are four false molars above and three below, after which are three bristled molars. T. europaea, L.; Buff. (The Common Mole.) Pointed muzzle, hair soft and black; individuals are found white, fawn-coloured and piebald— a vexatious animal in cultivated grounds. Talpa, Lin. CoNDYLURA, Illig. In the animals belonging to this genus, the two kinds of dentition peculiar to the Insectivora seem to be combined. In the upper jaw are two large triangular incisors, two extremely small and slender ones, and on each side a strong canine. In the lower one are four incisors slanting forwards, and a pointed but small canine. The superior false molars are triangular and separated, the inferior trenchant and denticulated. In their feet and the whole of their exterior they resemble the Mole, but CARNARIA. 67 their tail is longer, and what more particularly serves to distinguish them from the former is, that their nostrils are surrounded with little movable cartilaginous points, which, when they separate, radiate like a kind of star. One species particularly is found in North America—Sorex cristatus, L. (The Radiated Mole) similar to the Mole of Europe, the nose excepted, but having a tail more than double the length of that of the latter. SCALOPS, CUV. Teeth very similar to those of the Desmans, except that the small or false molars are less numerous, the muzzle is simply pointed, like that of the Shrew; their hands are widened, armed with strong- nails fitted to excavate the earth, and exactly similar to those of Moles: in fact their mode of life is the same; their eyes are equally as small, and their ears quite as much hidden. The only species known is the S. aquaticus. It appears to inhabit a great part of North America, along rivers, &c. Its external resemblance to the common Mole of Europe(l) is so great, that it is easy to mistake the one for the other. FAMILY III. CARNIVORA. Although the term carnivorous is applicable to all unguiculated animals, not quadrumanate, that have three sorts of teeth, inasmuch as they all use more or less animal aliment, there are, however, many of them, the two preceding families especially, which are compelled by weakness and the conical tubercles of their grinders to live almost entirely on Insects. It is in the present family that the sanguinary appetite for flesh is joined to the force necessary to obtain it. There are always four stout, long, and separated canini, between which are six incisors in each jaw, the root of the second of the lower ones being placed a little more inwards than the others. The molars are either wholly trenchant, or have some blunted tu- berculous parts, but they are never bristled with conical points. These animals are so much the more exclusively carnivorous, as their teeth are the more completely trenchant, and the proportions of their regimen may be calculated from the extent of the tubercu- lous surface of their teeth, compared with that which is trenchant. The Bears, which can subsist altogether on vegetables, have nearly all their teeth tuberculated. (1) It is the Common Mole of the United States. Am. Ed. 68 MAMMALIA. The anterior molars are the most trenchant; next comes a molar, larger than the others, usually furnished with a larger or smaller tuberculous heel; then follow one or two small teeth, that are per- fectly flat. It is with these small teeth in the back part of the mouth that the Dog chews the grass he sometimes swallows. We will call, with M. Fr. Cuvier, this large upper molar, and its cor- responding one below, carnivorous teeth; the anterior pointed ones, false molars; and the posterior blunted ones, tuberculous teeth. It is easy to conceive that those genera which have the fewest false molars, and whose jaws are the shortest, are those best adapted for biting. It is upon these differences that the genera can be most surely established. It is necessary, however, that the consideration of the hind foot should be added to them. Several genera, like those of the two preceding families, in walk- ing, or when they stand erect, place the whole sole of the foot on the ground, a fact proved by the total want of hair on that part of it. Others, and by far the greater number, walk on the ends of the toes, by raising up the tarsus. They are much swifter, and to this first difference are added many others of habits, and even of inter- nal conformation. In both the clavicle is a mere bony rudiment suspended in the muscles. The PLANTIGIIADA Form this first tribe, in which the whole sole of the foot is placed on the ground in walking, a circumstance which gives them a greater facility in standing vertically upon their hinder feet. They partake of the slowness and nocturnal life of the Insectivora; most of those that inhabit cold countries pass the winter in a state of tor- por. They all have five toes to each foot. Ursus, Lin. Bears have three large molars on each side in each jaw, altogether tuber- culous, and of which the posterior upper, and anterior lower are the longest. They are preceded by a tooth a little more trenchant, which is one of the carnivorous teeth of this genus, and by a variable number of very small false molars, which are sometimes shed at a very early period. This almost frugivorous sort of dentition is the reason why, notwithstanding their great strength, they seldom eat flesh unless from necessity. They are large, stout-bodied animals, with thick limbs, and a very short tail: the cartilage of the nose is elongated and movable. They excavate CARNARIA. 69 dens or construct huts, in which they pass the winter in a state of somno- lency more or less profound, and without food. It is in these retreats that the female brings forth her young. The species are not easily distinguished by apparent characters. U. amencanus, Gm. (The North American Black Bear.) A very dis- tinct species, with a flat forehead, smooth and black fur, and fawn-coloured muzzle. We have always found the small teeth behind the canini more numerous in this Bear than in the European species. Individuals have been seen that were entirely fawn-coloured. Its usual food is wild fruits; it devastates the fields, and, where fish is abundant, proceeds to the shores for the purpose of catching it. It is only for want of other aliment that it attacks quadrupeds. The flesh is held in great esteem. Various species are known, such as the Polar Bear, Thibet Bear, Malay Bear, Thick-lipped Bear, and our Grisly-Bear. Procyon, Storr. The Raccoons have three back tuberculous molars, the superior of which are nearly square, and three pointed false molars in front, forming a con- tinuous series to the canines, which are straight and compressed. The tail is long, but the remainder of the exterior is that of a Bear in miniature. They rest the whole sole of the foot on the ground only when they stand still; when they walk, they raise the heel. P. lotor. (The Raccoon.) Greyish brown; muzzle white; a brown streak across the eyes; tail marked with brown and white rings. This animal is about the size of a Badger, is easily tamed, and remarked for a singular habit of eating nothing it has not previously dipped in water. From North America—lives on eggs, Birds, &,c. Ailurus, Fred. Cuv. The Panda appears to approximate to the Raccoon in its canini, and what is known of its other teeth; with this exception, that it has only one false molar. The head is short; tail long; walk plantigrade; five toes with re- tractile claws. One species only is known, the A. refulgens, Fred. Cuv. Size of a large Cat; fur soft and thickly set; above of the most brilliant cinnamon red; behind more fawn-coloured; be- neath of a deep black. The head is whitish, and the tail marked with brown rings. From the north of India. Ictides, Valen. The Benturong is somewhat related to the Raccoon by its teeth, but the three upper back molars are much smaller and less tuberculous, the last one in each jaw particularly, which is very small and nearly simple. It is covered with long- hair, and has a tuft at each ear. The tail is long, hairy, and has a propensity to curl, as if prehensile. From India. Id. albifrons, Fr. Cuv. Grey; tail and sides of the muzzle black; size that of a large Cat. From Bootan. 70 MAMMALIA. Nasua, Storr. The Coatis, to the teeth, tail, nocturnal habit, and slow dragging gait of the Raccoon, add a singularly elongated and flexible snout. The feet are semi-palmate, notwithstanding which they climb trees. Their long claws are used for digging. They inhabit the warm climates of America, and their diet is nearly the same as that of the Marten of Europe. Viverra nasua, L. (The Red Coati.) Reddish fawn colour; muzzle brown; tail with brown rings. This is perhaps the only proper place for the singular genus of the Kin- KAJous or Potto, Cuv. which, to a plantigrade walk, adds a long prehen- sile tail like that of the Sapajous, a short muzzle, a slender and extensible tongue, two pointed grinders before, and three tuberculous ones behind. Only one species is known, the Viverra caudivolvula, Gm. From the warm parts of America and from the great Antilles, where it is called Potto; size of a Polecat; hair woolly, and of a grey or yellowish brown; habits nocturnal; of a mild disposition, and lives on fruit, milk, honey, blood, &c. Meles, Storr. The Badgers, which Linnaeus placed with the Raccoons in the genus Ursus, have a very small tooth behind the canine, then two pointed molars followed in the upper jaw by one that we begin to recognize as carnivorous from the trenchant vestige it exhibits on its outer side; behind this is a square tuberculous one, the largest of all. Below, the penultimate begins to show a resemblance to the inferior carnivorous teeth, but as there are two tubercles on its internal border as elevated as its trenchant edge, it acts as a tuberculous one; the last below is very small. The slow movements of the Badgers and their nocturnal habits are like those of the preceding animals; their tail is short, the toes are much en- veloped in the skin, and they are otherwise peculiarly distinguished by a sac under the tail, from which oozes a fatty, fetid humour. The long claws of their fore-feet enable them to dig with great effect. M. europsea. (The European Badger.) Greyish above, black beneath, a blackish band on each side of the head(l). Linnaeus also placed the Gluttons among the Bears, but they approximate much nearer to the Weasels in their teeth as well as in their habits, the only relation they have to the former consisting in their plantigrade mo- tion. They have three false molars above and four below, immediately antecedent to the carnivorous teeth, which are well characterized, and be- hind them two small tuberculous ones, the upper being more broad than long. Their superior carnivorous tooth has only one small tubercle on the Gulo, Storr. (1) The American Badger. Mel. hudsonius is a different species.—Am, Ed. CARNARIA. 71 inner side, and in fact, the whole dental system is nearly the same as that of the Weasels. The tail is of a middling size, with a plait or fold beneath in place of a sac, and the port of the animal is very similar to that of the Badger. The most celebrated species is the Glutton of the north, the Ursus gulo, L. (The Common Glutton.) About the size of the Badger; usually of a fine deep maronne colour, with a disk on the back of a darker brown; sometimes, however, the shades are lighter. It inhabits the most glacial regions of the North, is considered very sanguinary and ferocious, hunts during the night, does not become torpid during the winter, and masters the largest animals by leaping upon them from the top of a tree. Its vora- city has been ridiculously exaggerated by some authors. The Wolverene of North America (Ursus luscus, Lin.) does not appear to differ from it in any constant character—its colours, however, are generally lighter. Hot climates produce some species which can only be placed near the Gluttons, as they differ from them merely in having one false molar less in each jaw, and in a long tifil. Such are the animals, termed by the inhabit- ants of South America Ferrets, which, having the teeth of our Ferrets and Polecats, have, in fact, similar habits—they are distinguished from them however, by their plantigrade motion. Viverra vittata, L. (The Grison.) Black; top of the head and neck grey; a white band, reaching from the forehead to the shoulders. Ratelus, F. C. The Ratels have a false molar in each jaw less than the Grison, and their upper tuberculous tooth is but slightly developed, so that in the teeth they approach the Cat, while their whole exterior is that of the Grison or Bad- ger. The legs are short; feet plantigrade, and five toes to each; nails very strong, &c. &c. One species only is known, the Viverra mellivora, Sparm. Size of the European Badger; grey above; black beneath, with a white line that sepa- rates the two colours; sometimes it is nearly all white above. It inhabits the Cape of Good Hope, and digs up the earth with its long claws, in search of the honey-combs of the wild bees. The DIGITIGRADA Form the second tribe of the Carnivora. The animals which compose it walk on the ends of their toes. In the first subdivision there is only one tuberculous tooth behind the upper carnivorus; these animals, on account of the length of their body, and the shortness of their legs, which permit them to pass through the smallest openings, have been styled vermiform. They are not torpid during the winter. Linnaeus placed them all in one genus, that of 72 MAMMALIA Or the Weasels, which we will divide into four subgenera. Mustela, Lin., Putorius, Cuv. The Polecats are the most sanguinary of all; the lower carnivorous tooth has no inner tubercle, and the superior tuberculous one is more broad than long; there are only two false molars above and three below. These ani- mals are externally recognised by their muzzle, which is shorter and thicker than that of the Weasel. They all diffuse a most horrible stench. Mustela putorius, L. Buff. (The Common Polecat.) Brown; flanks yellowish; white spots on the head; the terror of poultry yards and warrens. M. luireola, Pall. (The Mink or Norek.) It frequents the shores of rivers, &c., in the north and east of Europe from the Arctic Ocean to the Black Sea, and lives on frogs and crabs. The feet are slightly palmated at the base of the toes, but the teeth and round tail approximate it nearer to the Polecat than the Otter. It is of a reddish brown; the circum- ference of the lips and the under part of the jaw white; it exhales a musky odour, and is much esteemed for its well known fur. It is the Mink of the United States. The true Weasels differ from the Polecats in having an additional false molar above and below, and in the existence of a small internal tubercle on their inferior carnivorous tooth, two characters which somewhat diminish the cruelty of their nature. M. martes, L. (The Common Marten.) Brown, a yellow spot under the throat. Inhabits the woods. Siberia produces the M. zibellina, Pall. (The Sable.) Highly valued for its rich fur, brown, spotted with white about the head, and distinguished from the preceding ones by the extension of the hair to the under surface of the toes. It inhabits the coldest mountains, and the hunting to obtain it, in the midst of winter and tremendous snows, is a perilous and painful under- taking. It is to the pursuit of this animal that we owe the discovery of the eastern countries of Siberia. North America also possesses several Martens indicated by naturalists and travellers, under the indefinite names of Pekan, Vison, Mink, &c. One of them, the White Vison of the furriers, Mus. leutreocephala, Harl., has as hairy feet and almost as soft a fur as the Sable, but is of a light fawn colour, and almost white about the head. That which we call the Pekan; Must, canadensis, Gm., and which comes from Canada and the United States; is of a brownish colour, mixed with white on the head, neck, shoulders and top of the back; nose, crupper, tail and limbs blackish. Musteea, Cuv. The Skunk, like the Polecat, has two false molars above and three be- Mephitis, Cuv. CA11NARIA. 73 low, but the superior tuberculous one is very large, and as long as it is broad, and the inferior carnivorus has two tubercles on its internal side, circumstances which ally it to the Badger just as the Polecat approximates to the Grison and Glutton. Independently of this, the anterior nails of the Skunk, like those of the Badger, are long and fitted for digging; they are moreover semi-plantigrade, and the resemblance extends even to the distribution of their colours. The whole family are l’emarkable for their fetid exhalations, but the Skunk is pre-eminently distinguished by its most horrible and suffocating stench. Skunks are generally marked with white stripes on a black ground, but the number of stripes appears to vary in the same species. The most common species of North America is the M. putorius. (The American Skunk.) Black, with stripes of white, larger or smaller, and more or less numerous; the tail is black, and the tip white. The odour it produces resembles that of the Polecat, mingled with a strong smell of garlic—nothing is more nauseous. Lutra, Storr. The Otters have three false molars in each jaw, a strong heel to the su- perior carnivorus, a tuberculus on the inner side of the inferior one, and a large tuberculous tooth above that is nearly as long as it is broad. The head is compressed, and the tongue demi-asperate. They are otherwise distinguished from all the preceding subgenera by palmated feet, and a horizontally flattened tail, two characters which render them aquatic. Their food is fish. L. vulgaris. (The Common Otter.) Brown above, whitish round the lips, on the cheeks and the whole inferior surface of the body. It is sometimes found spotted and whitish. From the rivers of Europe. Several otters differ but little from the above. That of Carolina, L. lataxina, Fr. Cuv., becomes a little larger, is sometimes more deeply co- loured, and has a brownish tint beneath; very frequently, however, there is no difference even in the shades of colour. Mustela lutra brasiliensis, Gm. (The American Otter.) Brown or fawn- coloured; throat white or yellowish; a little larger than the European Ot- ter; the body is also longer, and the hair shorter. It is distinguished by the end of the nose, which is not naked as in most animals, but is covered with hair like the rest of the chanfrin. From the rivers of both Americas. Mustela lutris, L. (The Sea-Otter.) Size, double that of the European species; body much elongated; tail one-third the length of the body; the hind feet very short. There is sometimes white about the head. It has only four incisors below, but the molars are like those of the other Otters. Its blackish velvet looking fur is extremely valuable to obtain which the English and Russians hunt the animal throughout the northern parts of the Pacific ocean. 74 MAMMALIA. In the second subdivision of the Digitigrada there are two flat tuberculous teeth, behind the superior carnivorous tooth, which is itself furnished with a large heel. They are carnivorous, but do not exhibit a courage proportioned to their powers, and frequently feed on carrion. Dogs have three false molars above, four below, and two tuberculous teeth behind each of the carnivori; the first of these upper tuberculous teeth is very large. Their superior carnivorus has only a small inner tubercle, but the posterior portion of the inferior is altogether tuberculous. The tongue is soft; the fore-feet have five toes, and the hind ones four. C. familiaris, L. (The Domestic Dog). Distinguished by his recurved tail, otherwise varying infinitely, as to size, form, colour and quality of the hair. He is the most complete, singular and useful conquest ever made by man; the whole species has become his property; each individual is devoted to his particular master, assumes his manners, knows and defends his possessions, and remains his true and faithful friend till death—and all this neither from constraint nor want, but solely from the purest gratitude and the truest friendship. The swiftness, strength and scent of the Dog have rendered him Man’s powerful ally against all other animals, and were even, perhaps, necessary to the establishment of society. Of all animals, he is the only one which has followed Man through every region of the globe. Some naturalists think the Dog is a Wolf, and others that he is a domesti- cated Jackal, and yet those dogs which have become wild again in desert islands resemble neither the one nor the other. The wild dogs, and those that belong to savages, such as the inhabitants of New Holland, have straight ears, which has occasioned a belief that the European races, which approach the most to the original type, are the Shepherd’s Dog and Wolf Dog,- but the comparison of the crania indicates a closer affinity in the Mastiff and Danish Dog, subsequently to which come the Hound, the Pointer, and the Terrier, differing between themselves only in size and the proportions of the limbs. The Greyhound is longer and more lank; its frontal sinuses are smaller, and its scent weaker. The Shepherd’s Dog and the Wolf Dog re- sume the straight ears of the wild ones, but with a greater cerebral devel- opment, which continues to increase together with the intelligence in the Barhet and the Spaniel. The Bull Dog, on the other hand, is remarkable for the shortness and strength of his jaws. The small pet-dogs, the Pugs, Spaniels, Shocks, &c. are the most degenerate productions, and exhibit the most striking marks of that power to which man subjects all nature. The dog is born with his eyes closed; he opens them on the tenth or twelfth day; his teeth commence changing in the fourth month, and his full growth is attained at the expiration of the second year. The dog is old at fifteen years, and seldom lives beyond twenty. His vigilance, bark, and susceptibility of education are well known to every one. Castis, Lin. CARNARIA. 75 C. lupus, L. (The Wolf.) A large species with a straight tail; legs fawn-coloured, with a black stripe on the fore-legs when adult; the most mischievous of all the Carnaria of Europe. It is found from Egypt to Lap- land, and appears to have passed into America. Towards the north, in winter, its fur becomes white. It attacks all our animals, yet does not ex- hibit a courage proportioned to its strength. It often feeds on carrion. Its habits and physical development are closely related to those of the Dog. C. jubatus, Cuv.; Agoura-Gouazou, Azzar. (The Red Wolf.) A fine cinnamon-red: a short black mane along the spine. From the marshes of South America. C. aureus, L. (The Chacal or Jackal.) Less than the preceding; the muzzle more pointed; of a greyish brown; thighs and legs of a light fawn colour; some red on the ear; the tail scarcely reaching further than the heel. It is a voracious animal, which hunts like the Dog, and in its con- formation and the facility with which it is tamed, resembles the latter more closely than any other wild species. Jackals are found from the Indies and the environs of the Caspian sea, as far as, and in Guinea; it is not cer- tain, however, that they are all of one species. Those of Senegal for in- stance, C. anthus, Fr. Cuv., stand higher, appear to have a sharper muzzle, and the tail a little longer. Foxes may be distinguished from the Wolf and Dog by a longer and more tufted tail, by a more pointed muzzle, by pupils which during the day form a vertical fissure, and by the upper incisors being less sloping. They diffuse a fetid odour, dig burrows, and attack none but the weaker animals. This subgenus is more numerous than the preceding one. C.vulpes,h. (The Common Fox.) More or less red; tip of the tail white; found from Sweden to Egypt. Those of the north have merely a more brilliant fur. The prairies of North America produce a little Fox, C. velox, Harl. and Say; which lives in burrows. C. cinereo-argenteus, Schreb. (The Tri-coloured Fox of America.) Ash- coloured above; white beneath; a cinnamon-red band along the flanks. From all the warm and temperate parts of the two Americas. C. argentalus. (The Silver or Black Fox.) Black; tips of the hairs white, except on the ears, shoulders and tail, where they are of a pure black. The end of the tail is all white. From North America. Its fur is most beautiful, and very costly. The interior of Africa produces Foxes remarkable for the size of their ears, and the strength of the hairs of their mustachios; they are the Mesa- lotis of Illiger. Finally, we may place after the Dogs, as a fourth subgenus, distinguished by the number of toes, which is four to each foot, the Hyaena venatica, liursch. (The Wild Dog of the Cape.) It has the dental system of the Dog and not that of the Hyena; a long and thin form; the fur mottled, with white and fawn colour, grey and black; size of the wolf; large ears with black tips, &c. It is gregarious, and frequently approaches Cape Town, devastating its environs. 76 MAMMALIA. Vi VEERA. The Civets have three false molars above and four below, the anterior of which sometimes fall out; two tolerably large tuberculous teeth above, one only below, and two tubercles projecting forwards on the inner side of the inferior carnivorus, the rest of that tooth being more or less tuberculous. The tongue is bristled with sharp and rough papilla:. Their claws are more or less raised as they walk, and near the buttock is a pouch more or less deep, where an unctuous and frequently an odorous matter oozes from peculiar glands. They are divided into four subgenera. In the true Civets there is a deep pouch divided into two sacs, filled with an abundant pommade of a strong musky odour, secreted by glands which surround it. This substance is an article of commerce, and is used by the perfumers. It was more employed when musk and ambergrease were unknown. The pupil of the eye remains round during the day, and their claws are only semi-retractile. V. civetta, L. (The Civet.) Ash-coloured, irregularly barred and spot- ted with black; the tail less than the body, black towards the end, withfour or five rings near its base; two black bands encircling the throat, and one surrounding the face; a mane along the whole length of the spine and tail that bristles up at the will of the animal. From the hottest parts of Africa. Viveriia, Cuv. Gexetta, Cuv. In the Genets the pouch is reduced to a slight depression formed by the projection of the glands, and has scarcely any visible excretion, although an odour is diffused from it that is very perceptible. In the light the pupil forms a vertical fissure, and the nails are completely retractile, as in the Cat. V genetta, L. (The Common Genet.) Grey spotted with brown or black, the muzzle blackish; white spots on the eyebrows, cheeks and each side of the end of the nose; tail the length of the body, annulated with black and white, the black rings being from nine to eleven in number. Found from the south of France to the Cape of Good Hope, frequents the edges of brooks, near springs, &c. The skin forms an important article of trade. Has the teeth and most of the characters of the Genets, with which it was a long time confounded; it is however more stout-limbed; the feet are semi-palmate, and the walk nearly plantigrade, but what particularly dis- tinguishes it is the spiral inclination of the tail, which is not prehensile. Only one species is known, the P. typus, Fr. Cuv. (The Pougoun£ of India.) A yellowish-brown, with some spots of a deeper brown than the rest; the feet, muzzle and part of the tail blackish; eye-brows white, and a white spot under the eye. Paradoxuiujs, Fr. Cuv. CARNARIA. 77 The pouch is voluminous and simple. The hairs are annulated with light and obscure tints, which determine their general colour on the eye. The Mangouste of Egypt, so celebrated among the ancients under the name of Ichneumon, is grey, with a long tail terminated with a black tuft; it is larger than our Cat, and as slender as a Marten. It chiefly hunts for the eggs of the Crocodile, but also feeds on all sorts of small animals; brought up in houses, it hunts Mice, Reptiles, &c. Ry the Europeans at Cairo it is called Pharaoh’s Rat; by the natives, Nems. The ancient tradition of its jumping down the throat of the Crocodile to destroy it, is entirely fabulous. There are other species. Mangusta, Cuv.—Hekpestes, Illig. Ryz-eita, Illig. The Surikates have a strong resemblance to the Mangoustes, even to the tints and transverse streaks of the hair, but are distinguished from them and from all the Carnivora of which we have hitherto spoken, by having only four toes to each foot. They also are higher on their legs, and they have not the small molar immediately behind the canine tooth. One species only is known, a native of Africa—Viv. tetradactyla, Gm., a little less than the Mangouste of India. Ckossahchus, Fred. Cuv. The muzzle, teeth, pouch, and walk of the Surikates, the toes of the Mangoustes. One species only is known—Crossarchus obscurus, Fred. Cuv., from Sierra Leone, of the size of the Surikate; greyish brown; cheeks a little paler, and a hairy tail. The last subdivision of the Digitigrada has no small teeth of any kind behind the large molar of the lower jaw. The animals con- tained in it are the most cruel and sanguinary of the class. They form two genera. Hyjena, Storr. The Hyenas have three false molars above and four below, all conical, blunt and singularly large; their superior carnivorous tooth has a small tubercle within and in front, but the inferior has none, presenting only two stout trenchant points: with these powerful arms they are enabled to crush the bones of the largest prey. The tongue is rough and each foot has four toes like that of the Surikate. So powerful are the muscles of the neck and jaw, that it is almost impossible to wrest any thing from between their teeth that they have once seized, and, among the Arabs, their name is the sym- bol of obstinacy. It sometimes happens that an anchylosis of the cervical vertebrae is the consequence of these violent efforts, and this has caused it to be said that they have only one single bone in the neck. They are 78 MAMMALIA. nocturnal animals, inhabiting caves; are extremely voracious, and feed chiefly on dead bodies, which they seek for even in the grave. A thousand superstitious traditions are connected with them. Three species are known, one of which is the H. vulgaris, Buff. (The Striped Hyena.) Grey; blackish or brown stripes crosswise; a mane along the whole of the nape of the neck, and black, that stands erect when the animal is angry. It is found from India to Abys- sinia and Senegal. The brown and spotted Hyenas are the two others. Felis, Lin. Of all the Carnaria the Cats are the most completely and powerfully armed. Their short and round muzzle, short jaws, and particularly their retractile nails, which, being' raised perpendicularly, and hidden between the toes, when at rest, by the action of elastic ligament, lose neither point nor edge, render them most formidable animals, the larger species especially. They have two false molars above, and two below: their superior carnivorous tooth has three lobes, and a blunted heel on the inner side; the inferior, two pointed and trenchant lobes, without any heel: they have but a very small tuberculous tooth above, without any thing to correspond to it below. The species of this genus are very numerous and various with regard to size and colour, though they are all similar with respect to form. We can only subdivide them by referring to the difference of size and the length of the hair, characters of but little importance. At the head of the genus we find F. leo, L. (The I.ion.) Distinguished by its uniform tawny colour, the tuft of hair at the end of the tail, and the flowing mane which clothes the head, neck, and shoulders of the male. Of all beasts of prey, this is the strongest and most courageous. Formerly scattered through the three parts of the old world, it seems at present to be confined to Africa and some of the neighbouring parts of Asia. The head of the Lion is more square than that of the following species. Tigers are large, short haired species, most commonly marked with vivid spots. F. tigris, Buff. (The Royal Tiger.) As large as the Lion, but the body is longer, and the head rounder; of a lively fawn colour above; a pure white below, irregularly crossed with black stripes; the most cruel of all quadru- peds, and the scourge of the East Indies. Such are his strength and the velocity of his movements, that during the march of armies he has been seen to seize a soldier, while on horseback, and bear him to the depths of the forest, without affording a possibility of rescue. F. onga, L. (The Jaguar.) Nearly the size of the Royal Tiger, and almost as dangerous; a bright fawn colour above; the flank longitudinally marked with four rows of ocellated spots, that is with rings more or less complete, having a black point in the middle; white beneath, transversely striped with black. Sometimes individual specimens are found black, whose rings, of a deeper hue, arc only perceptible in a particular light. CARNARIA. 79 F.pardus, L.; tlie Pardalis of the ancients. (The Panther.) Pawn coloured above; white beneath; with six or seven rows of black spots, re- sembling' roses, that is, formed by the assemblage of five or six simple spots on each flank; the tail is the length of the body, minus that of the head. F. leopardus, L. (The Leopard.) From Africa; similar to the Panther, but has ten rows of smaller spots. F. discolor, L.; Buff. (The Couguar or Puma.) Red, with small spots of a slightly deeper red which are not easily perceived. From both Ame- ricas, where it preys on Sheep, Deer, &c. Among the inferior species, we should distinguish the Lynxes, which are remarkable for the pencils of hair which ornament their ears. Four or five different kinds of them are known in commerce. The most beautiful, which are as large as the Wolf—F. cervaria, Temm., come from Asia by the way of Russia, and have a slightly reddish-grey fur, finely spot- ted with black. Others from Canada and the north of Sweden—F. borealis, Temm., have the fur very much tufted, extending even under the feet; of an ash-coloured grey, and with scarcely any spots. We find also in North America the F. rufa, Quid. (The Bay Lynx.) A reddish fawn or greyish colour, mottled with brown; brown waves on the thighs; tail annulated with black or brown; rather smaller than the Lynx. F. caracal, L. (The Caracal.) Of an almost uniform vinous red. From Persia, Turkey, &.c. It is the true Lynx of the ancients. The inferior species, which are deprived of the pencils on the ears, are more or less similar to our common Cat; such is F. pardalis, L.; Buff. (The Ocelot.) Rather lower on its legs than most of the others; grey, with large fawn-coloured spots bordered with black, forming oblique bands on the flank. From America. F. catus, L. (The Domestic Cat.) This animal is originally from the forests of Europe. In its wild state, it is of a greyish brown, with darker transverse undulations; below pale; the insides of the thighs and of all the feet, yellowish; three bands on the tail, its inferior third blackish. In a domestic state it varies, as is well known, in colours, in the length and fineness of the hair, but infinitely less so than the Dog; it is also much less submissive and affectionate. The AMPHIBIA Will form the third and last of the small tribes into which we di- vide the Carnivora. Their feet are so short and so enveloped in the skin, that the only service they can render them on land, is to enable them to crawl; but as the intervals of the fingers are occu- pied by membranes, they are excellent oars; and in fact, these ani- mals pass the greater portion of their time in the water; never 80 MAMMALIA. landing, except for the purpose of basking in the sun, and suckling their young. Their elongated body; their very movable spine, which is provided with muscles that strongly flex it; their narrow pelvis; their short hair, that adheres closely to the skin, all unite to render them good swimmers; and all the details of their anatomy confirm these first indicia. We have as yet distinguished two genera only, Phoca and Tri- chechus. Piioca, Lin. Seals have six or four incisors above, four or two below, pointed canini and grinders to the number of twenty, twenty-two, or twenty-four, all trench- ant or conical, and without any tuberculous part whatever; five toes to all the feet, the anterior ones regularly decreasing in length from the thumb to the little toe, while in the hinder feet the thumb and the little toe are the longest, and the intermediate ones the shortest. The fore-feet are envel- oped in the skin of the body as far as the tarsus, the hinder ones almost to the heel. Between the latter is a short tail. The head of a Seal bears a resemblance to that of a Dog, whose intelligence and soft expressive look it also possesses. It is easily tamed, and soon becomes attached to its keeper, or those who feed it. The tongue is smooth and sloped at the end, the stomach simple, csecilm short, and the intestinal canal long, and tolerably regular. These animals live on fish; always eat in the water, and close their nostrils when they dive by a kind of valve. They remain a long time under water; there is a large venous sinus in the liver, which must assist them in diving by rendering respiration less necessary to the motion of the blood. Their blood is very abundant and very black. Phoca, properly so called, or without external ears. The true Phocse have pointed incisors; all the toes enjoy a certain de- gree of motion, and are terminated by pointed nails planted on the edge of the membrane, which unites them. They are subdivided, from the number of their incisors. The Caeoce- fhaia, Fr. Cuv- have six above and four below; such is the Phoca vitulina, L. (The Common Seal.) From three to five feet in length; of a yellowish grey, more or less shaded and spotted with brown, according to its age; sometimes brownish, with small yellow spots. When very old it becomes whitish. Common on the coast of Europe in great herds. It is also found far to the north; we are even assured that it is this species which inhabits the Caspian sea, and the great fresh water lakes of Russia and Siberia, but this assertion does not appear to be founded on an exact comparison. In fact, the European seas contain several Phocae, which have long been confounded, some of which are perhaps mere varie- ties of the others. CARNAIIIA. 81 Four incisors above, and four below, the molars deeply notched into three points. One species only is known, and that is from the Austral seas—Ph. lep- tonix, Blain. Size of the barbata; greyish above; yellowish beneath; nails small. Stenoruiitcus, Fred. Cuv. Four incisors also, above and below, but their grinders are obtuse cones, with a slightly marked heel before and behind. There is one of them in the Mediterranean. Ph. monachus, Gm. (The Monk.) From ten to twelve feet in length, of a blackish brown, with a white belly. It is particularly found among the Grecian and Adriatic Islands, and is, most probably, the species best known to the ancients. Peeagus, Fred. Cuv. Four superior incisors, and two inferior; grinders compressed, slightly trilobate, supported by thick roots. Such is the Ph. cristata, Gm. (The Hooded Seal.) Seven or eight feet long; a piece of loose skin on the head, which can be inflated at the pleasure of the animal, and is drawn over the eyes when it is menaced, at which times the nostrils also are inflated like bladders. From the Arctic ocean. Finally, the Macrorhinus, Fr. Cuv., has the incisors of the preceding, obtuse conical molars, and the muzzle resembling a short movable probos- cis or snout. The largest seal known is of this subgenus; the Ph. leonina, L. (The Elephant Seal.) From twenty to twenty-five feet in length; brown, the muzzle of the male terminated by a wrinkled snout, which becomes inflated when the animal is angry. It is common in the southern latitudes of the Pacific Ocean, at the Terra del-Fuego, New Zeal- and, Chili, &c. It constitutes an important object of the fisheries, on ac- count of the oil in which it abounds. The Stemmatopus, Fred. Cuv. Are worthy of being formed into a separate genus; because, indepen- dently of the projecting external ears, the four superior middle incisors have a double cutting edge, a circumstance hitherto unknown in any animal; the external ones are simple and smaller, and the four inferior bifurcated. All the molars are simply conical, and the toes of the forefeet almost immova- ble; the membrane of the hind feet is lengthened out into a slip beyond each toe; all the nails are flat and slender. Ph. jubata, Gm.; Sea-Lion of Steller, Pernetty, &c. From fifteen to twenty feet, and more, in length; fawn coloured; the neck of the male covered with hairs that are more frizzled and thickly set than those on the rest of the body. It might be said to be found in all the Pacific Ocean, L Otaries, Peron, Seals with external ears, 82 MAMMALIA. were it not that those from the straits of Magellan seem to differ from such as are taken at the Aleutian islands. Trichechus, Lin.(l) The Morse resembles the Seal in its limbs, and the general form of the body; but differs widely from it in the teeth and head. There are no incisors nor canini in the lower jaw, which is compressed anteriorly to pass between two enormous canini or tusks, which issue from the upper one, and which, project downwards, being sometimes two feet long, and of a proportionable thickness. The enormous size of the alveoli, requisite for holding such tremendous canini, raises up the whole front of the upper jaw, giving it the shape of a huge inflated jowl, the nostrils looking upwards, and not terminating the muzzle. The molars are all short, obliquely truncated cylinders; there are four of them on each side, above and below, but, at a particular age, two of the upper ones fall out. Between the canini are two incisors, similar to the molars, which most authors have not recognised as such, although they are implanted in the intermaxillary bone. Between these again, in the young animal, are two more small, pointed ones. The stomach and intestines of the Morse are very similar to those of the Seal. It appears that fucus constitutes part of its food, along with animal matters. One species only is as yet ascertained, the Trich. rosmarus, L. (The Sea Cow.) It inhabits the Arctic seas, sur- passes the largest Ox in size, attains the length of twenty feet, and is cover- ed with a short yellowish hair. It is sought for on account of its oil and tusks; the ivory of which, although rough grained, is employed in the arts. The skin makes excellent coach braces. ORDER IV. MARSUPIALIA. So many are the singularities in the economy of the Marsupialia or pouched animals, as they are termed, which we formerly placed at the end of the Carnaria as a fourth family of that great order, that it appears to us they should form a separate and distinct one, particularly as we observe in them a kind of representation of three very different orders. The first of all their peculiarities is the premature production of (1) Irichechus, from Tg/£ (hair), a name invented by Artedi for the Sea Cow. 83 their young, whose state of development at birth is extremely small. Incapable of motion, and hardly exhibiting the germs of limbs and other external organs, these diminutive beings attach themselves to the mammae of the mother, and remain fixed there until they have ac- quired a degree of development similar to that in which other animals are born. The skin of the abdomen is almost always so arranged about the mammae as to form a pouch in which these imperfect little animals are preserved as in a second uterus; and to which, long after they can walk, they always fly for shelter at the approach of danger. Two particular bones attached to the pubis, and inter- posed between the muscles of the abdomen, support the pouch. These bones are also found in the male, and even in those species in which the fold that forms the pouch is scarcely visible. Another peculiarity of the Marsupialia is, that notwithstanding a general resemblance of the species to each other, so striking, that for a long time they were considered as one genus, they differ so much in the teeth, the organs of digestion and the feet, that if we rigor- ously adhered to these characters, we should be compelled to sepa- rate them into several orders. They carry us by insensible grada- tions from the Carnaria to the Rodentia, and there are even some animals which have the pelvis furnished with similar bones; but which, from the want of incisors or of all kinds of teeth, have been approximated to the Edentata, where, in fact, we shall leave them, under the name of Monotremata. The first subdivision of the Marsupialia is marked by long canini, and small incisors in both jaws, back molars bristled with points, and all the characters in general of the insectivorous Carnaria; the animals that compose it are also perfectly similar to the latter in their regimen. Didelphis, Lin. The Opossums, which of all the Marsupialia have been the longest known, form a genus peculiar to America. They have ten incisors above, the middle ones being rather the longest, and eight below; three anterior compressed grinders and four posterior bristled grinders, the superior ones triangular, and the inferior oblong, which, with the four canini, make in all fifty teeth, the greatest number hitherto observed in Quadrupeds. Their tongue is papillated, and their tail prehensile and partly naked. Their hinder thumb is long and very opposable to the other four toes, from which circumstance these animals are sometimes styled Pedimana,- they have no nail. Their extremely wide mouth, and great naked ears give them a 84 MAMMALIA. very peculiar physiognomy. They are fetid and nocturnal animals, whose gait is slow; they remain on trees, and there pursue Birds, Insects, &c., though not despising fruit. The females of certain species have a deep pouch in which are the mammae, and in which they can enclose their young. Did. virginiana, Penn. (The Opossum.) Almost the size of a Cat; fur, a mixture of black and white; ears, one side black, and the other white; head nearly all white. Inhabits all America; steals at night into villages; attacks fowls, eats their eggs, &c. The young ones at birth, sometimes sixteen in number, weigh only a grain each. Although blind and nearly shapeless, they find the mammae by instinct, and adhere to them until they have attained the size of a Mouse, which happens about the fiftieth day, at which epoch they open their eyes. They continue to return to the pouch till they are as large as Rats. Other species possess no pouch, having a mere vestige of it in a fold of the skin on each side of the abdomen. They usually carry their young on their backs, the tails of the latter being entwined around that of the mother. Did. nudicauda, Geoff. (The Bare-tailed Opossum.) Fawn-coloured; tail very long, and naked even at its base; two whitish spots over each eye, one beneath. Finally, there is one known with palmated feet, which must be aquatic; it is not ascertained whether it has a pouch or not—it is the Chibonectes, Illig.(l) Did. palmata, Geoff. Brown above, with three transverse grey bands, interrupted in the middle, and white below; larger than a Norway Rat. All the other Marsupialia inhabit eastern countries, New Holland parti- cularly, a land, whose animal population seems chiefly to belong to this family. The Thylacini are the largest of this first division. They are distin- guished from the Opossums by the hind feet having no thumb; a hairy, non-prehensile tail, and two incisors less in each jaw; their molars are of the same number. They consequently have forty-six teeth; but the ex- ternal edge of the three large ones is projecting and trenchant, almost like the carnivorous tooth of a Dog; their ears are hairy, and of a medium size. One species only is known, the Did. cynocephala, Harris. Size that of a Wolf, but stands lower; grey; transverse black stripes on the crupper. It is very carnivorous, and pur- sues all small quadrupeds. From Van Dieman’s Land. Thxlacinus, Teram.(2) (1) Chinoredes, i. e. swimming- with hands (2) Thylacinus, from purse. MAIISUPIALIA. 85 The same number of teeth as the Thylacini, but the middle incisors are longer than the others, and the back molars more bristled, circumstances which approximate them more closely to the Sarigues. They are also allied to them by their small size; their tail however is not prehensile; their hind thumb, though very short, is still very apparent. Did. penicillata, Shaw. Ash coloured; tail furnished with long black hairs; size that of the Norway Rat; lives on the trees in New Holland, and pursues insects. Phascogaee, Temm. Dasyurus, Geoff.(l) Two incisors and four grinders in each jaw less than the Opossums, so that they have only forty-two teeth; their tail, every where covered with long hairs, is not prehensile. The thumb of the hind foot is reduced to a tu- bercle, or has even totally disappeared. They are from New Holland, where they feed on Insects and dead bodies; they penetrate into houses, where their voracity is very inconvenient. Their mouth is not so wide, their muzzle not so pointed as those of the Opossums; their hairy ears are also shorter. They do not climb trees. Did. ursina, Harr. (The Ursine Opossum.) Long rough black hairs, with some irregularly placed white spots; the tail half as long as the body, almost naked underneath. Inhabits the north of Van Dieman’s Land, and is nearly the size of the Badger. The thumb of the hind foot short, like the first Dasyuri, and the two following toes united by the membrane as far the nails; the thumb and the little toe of their fore feet are simple tubercles, so that there seem to be but three toes. They have ten incisors above, the external ones separate and pointed, and only six below; but their molars are the same as in the Opossums, so that they have forty-eight teeth. Their tail is hairy, and not prehensile. The great claws of their fore feet announce their habit of digginginthe earth; and the tolerable length of their hind ones, a swift- ness of gait. P. namtus, Geoff. The muzzle much elongated; ears pointed; fur a greyish brown. At the first glance it resembles a Tenrec. The species belonging to the second subdivision of the Marsu- pialia have two broad and long incisors in the lower jaw with pointed and trenchant edges sloping forwards, and six corresponding ones in the upper jaw. Their superior canini are also long and pointed, but all their inferior ones consist of teeth so small that they are fre- Pehamex.es, Geoff. (2)—Thyeacis, Illig. (1) Dasyurus, hairy tail, (2) Pera, purse, Meles, badger. 86 MAMMALIA. quently hidden by the gum; they are sometimes altogether wanting in the lower jaw of the last subgenus. Their regimen is chiefly frugivorous. The thumb is very large in all of them, and so widely separated from the toes that it seems to slant backwards almost like that of the Birds. It has no nail, and the two following toes are united by the skin as far as the last pha- lanx. It is from this circumstance that these animals have received the name of Phalangers. Piialangista. Phaxangista, Cuv.—Baeantia, Illig-.(1) The true Phalangers have not the skin of the flank extended; four back molars in each jaw, with four points in two rows; in front a large one, co- nical and compressed, and between it and the superior canine two small and pointed ones, to which correspond the three very small lower ones, of which we have just spoken. Their tail is always prehensile. The tail in some of them is in a great measure scaly. They live on trees in the Moluccas, where they feed on Insects and fruit. At the sight of a Man they suspend themselves by their tail; and ifhe gaze at them steadily for some time, they fall through lassitude. They diffuse a very unpleasant odour, notwithstanding which their flesh is eaten. There are several of them known, of various sizes and colours, all of which are embraced under the Didelphis orientalis of Linnscus. Ph. ursina, T. (The Ursine Phalanger.) Nearly the size of the Civet, fur close, and of a blackish brown; the young ones a fawn-coloured brown. From the woods of the island of Macassar. In others, which have hitherto been found in New Holland only, the tail is hairy to the tip. Ph. vulpina. (The Fox-like Phalanger.) Size of a stout Cat; greyish- brown, paler beneath; tail nearly all black. The Flying Phalangers have the skin of the flanks more or less extended between the legs, like the Flying Squirrels among the Rodentia, which enables them to sustain themselves momentarily in the air, and make greater leaps. They also are only found in New Holland. Some of the species have inferior canini, but they are very small. Their superior canini and their three first molars, above and below, are very pointed; each of their back molars has four points. Ph. pygmxa. (The Flying Dwarf Phalanger.) Of the colour and nearly the size of a Mouse; the hairs of the tail regularly arranged on its two sides like the web of a quill. Petatjrus, Shaw.—Puaxixgista, Illig. (1) Balantia. from fiot,\ctvriov purse or pouch. MARSUPIALIA. 87 Other species have no inferior canini, while the superior ones are very small. Their four back molars present four points, but they are slightly curved into a crescent, which is very nearly the form of those of the Ruminantia. In front, there are two above, and one below, less compli- cated. By this structure they are rendered still more frugivorous than all the preceding species. Ph. petaurus. (The Great Flying Phalanger.) Resembles the Taguan and the Galeopithecus in size; its fur is soft and close; its tail long and flattened; brownish-black above, white beneath. They are of various shades of brown; some are variegated, and others perfectly white. Our third subdivision has the incisors and superior canini of the second. The two toes of the hind feet are also similarly united; but the posterior thumbs and inferior canini are wanting. It con- tains but a single genus. Hypsiprymnus, Illig.(l) The Potoroos are the last animals of this family which retain any trait of the general characters of the Carnaria. Their teeth are nearly the same as those of the Phalangers, and they still have pointed canini above. What particularly distinguishes these animals is their hind legs, which are much larger in proportion than the fore ones, that have no thumbs, and the two first toes united as far as the nail; so that, at a first glance, it seems as though there were but three toes, the middle one having two nails. They frequently walk upon two feet, at which times they employ their long and strong tail to support themselves. They have then the form and habits of the Kanguroos, from which they only differ in their superior canine tooth. They are frugivorous. Hyps, minor. (The Kanguroo Rat.) Size of a small Rabbit; of a mouse- grey. From New Holland, where it is called Potoroo. It is the only spe- cies known. The fourth subdivision only differs from the third in the absence of all canini whatsoever, it is the Macropus, Shaw.—Halmaturus, Illig.(2) The Kanguroos have all the characters we have assigned to the preceding genus, except that the superior canine is wanting, and that their middle incisors do not project beyond the others. The inequality of their legs is still greater, so that on all fours they can only walk slowly and with diffi- culty; they make vigorous leaps however with their hind feet, the great (1) T^nrgvpvos; i. e. raised behind. (2) Halmaiurus, tail fit for leaping1. 88 MAMMALIA. middle nail of which (almost in the shape of a hoof) also serves them for purposes of defence; for, by supporting themselves on one foot and their enormous tail, they can inflict a severe blow with that which is at liberty. They are very gentle herbivorous animals, their grinders presenting mere transverse ridges. M. major, Shaw. (The Gigantic Kanguroo.) Sometimes six feet in height. It is the largest of the New Holland animals; was discovered by Cook in 1779, and is now bred in Europe- Its flesh is said to resemble venison. The young ones, which at birth are only an inch long, remain in the maternal pouch even when they are old enough to graze, which they effect by stretching out their necks from their domicile, while the mother herself is feeding. These animals live in troops, conducted by the old males. They make enormous leaps. It appears that we have hitherto con- founded under this name several species of New Holland and its neighbour- ing countries, whose fur, more or less grey, only varies by a trifling differ- ence of shade. The fifth subdivision has two long incisors in the lower jaw but no caninij in the upper, two long incisors in front, a few small ones on the sides, and two small canines. It comprehends but one genus. Koala, Cuv. The Koalae have a short, stout body; short legs, and no tail. The toes of their forefeet, five in number, when about to seize any object, separate into two groups; the thumb and index on one side, and the remaining three on the other. The thumb is wanting on the hind foot; the two first toes of which are united like those of the Phalangers and the Kanguroos. One species only is known: K. cinerea. (The Koala.) Ash coloured; passes one part of its life in trees, and the other in burrows which it excavates at their foot. The mother carries her young one for a long time on her back. Finally, our sixth division of the Marsupialia, or the Phascolomys, Geoff.(l) Consists of Animals which are true Rodentia in the teeth and intestines, their only relation to the Carnaria consisting in the articulation of their lower jaw; and in a rigorously exact system, it would be necessary to class them with the Rodentia. We should even have placed them there, had we not been led to them by a regular uninterrupted series from the Oposs- ums to the Phalangers, from the latter to the Kanguroos, and from the Kan- guroos to the Phascolomys. (1) Phaacolomys, a pouched rat, from ytto-Kuhov and/uwc. MARSUPIALIA. 89 They are sluggish animals, with large flat heads, and bodies that look as if they had been crushed. They are without a tail; have five nails on each of the fore feet, and four, with a small tubercle, in place of a thumb, on each of the hind ones, all very long and fit for digging. Their gait is excess- ively slow. They have two long incisors in each jaw, almost similar to those of the Rodentia; and each of their grinders has two transverse ridges. They feed on grass. One species only is known, the Phas. ursinus. (The Wombat.) Size of a badger; fur abundant, of a more or less yellowish brown. It is found in King’s Island to the south of New Holland, where it lives in its burrow. Its flesh is excellent. ORDER V. RODENTIA. We have just seen, in the Phalangers, canini so very small, that we cannot consider them as such. The nutriment of these animals, accordingly, is chiefly derived from the vegetable kingdom. Their intestines are long; and the Kanguroos, which have no canini what- ever, subsist upon vegetables only. The Pbascolomys might stand first in that series of animals of which we are about to speak, and which have a system of mastication still less complete. Two large incisors in each jaw, separated from the molars by an empty space, cannot seize a living prey nor tear flesh; they cannot even cut the food, but they serve to file, and by continued labour to reduce, it into separate molecules, in a word to gnaw it; hence the term Rodentia or Gnawers, which is applied to animals of this order. It is thus that they successfully attack the hardest substances, frequently feeding on wood and the bark of trees. The more easily to accomplish this object, the incisors have no thick enamel except in front, so that their posterior edges wearing away faster than the anterior, they are always naturally sloped. Their prismatic form causes them to grow from the root as fast as they wear away at the edge; and this tendency to increase in length is so powerful, that if one of them be lost or broken, its antagonist in the other jaw having nothing to oppose or comminute, becomes developed to a most monstrous extent. The lower jaw is articulated by a longitudinal condyle, in such a way as to allow of no horizontal motion, except from back to front, and vice versa, as is requisite for the action of 90 MAMMALIA. gnawing. The molars also have flat crowns, whose enamelled eminences are always transverse, so as to be in opposition to the horizontal motion of the jaw, and to increase the power of tritu- ration. • The genera in which these eminences are simple lines, and the crown is very flat, are more exclusively frugivorous; those in which the eminences of the teeth are divided into blunt tubercles are om- nivorous; while the small number of such as have no points more readily attack other animals, and approximate somewhat to the Carnaria. The form of the body in the Rodentia is generally such, that the hinder parts of it exceed those of the front; so that they rather leap than walk. In some of them this disproportion is even as excessive as it is in the Kanguroos. The inferiority of these animals is visible in most of the details of their organization. Those genera however which possess stronger clavicles have a certain degree of dexterity, and use their fore feet to convey their food to the mouth. Some of them even climb with facility: such is the Sciurus, Lin. Squirrels are distinguished by their strongly compressed inferior incisors, and by their long tail furnished with hairs. They have four toes before, and five behind. The thumb of the fore foot is sometimes marked by a tu- bercle. They have in all four grinders, variously tuberculated, and a very small additional one above in front, that very soon falls. The head is large and the eyes projecting and lively. They are light and active animals, living on trees, and feeding on fruits. Sciuntrs, CuVf In the Squirrel, properly so called, the hairs of the tail are arranged on the sides, so as to resemble a feather. There are a great many species in the two continents. Sc. vulgaris, Buff. (The Common Squirrel.) The back of a lively red; belly white; ears terminated by a tuft of hair. Those of the north, in win- ter, become of a beautiful bluish ash colour, producing the fur called min- ever when taken only from the back, and vair (by the French) when it consists of the whole skin. The American species have no pencils to their ears. Such are Sc. cinereus, L. (The Grey Squirrel of Carolina.) Larger than that of Europe; ash coloured, with a white abdomen. It is probable that we shall have to separate from the Squirrels certain RODENTIA. 91 species which have cheek-pouches like the Hamsters, and pass their lives in subterraneous holes, the Tamia of Illiger. For instance the Sc. slrialus, L. (The Ground Squirrel.) Which is found throughout all the north of Asia and America, particularly in the pine forests. The tail is more scantily supplied with hairs than that of the European Squirrel; the ears smooth, and skin brown, with five black stripes and two white ones. We ought also, most probably, to distinguish the Guerlinguets, a species with a long, and almost round tail. They are found in both continents. The following have been separated already. Pteromts.(I) Or the Flying Squirrels, to which the skin of the flank, extending be- tween the fore and hind legs, imparts the faculty of supporting themselves for a moment in the air, and of making very great leaps. There are long bony appendages to their feet, which support a part of this lateral mem' brane. There is a species in North America. Sc. voluccella, L. (The American Flying Squirrel.) Reddish-grey above; white beneath; size less than that of the preceding; tail three-fourths as long as the body. It lives in troops in the prairies of North America. M. Geoffroy has very properly separated from this genus the Cheikomts.(2) Or the Aye-Ayes, whose inferior incisors, much more compressed, and above all, more extended from front to back, resemble ploughshares. Each foot has five toes, of which four of the anterior are excessively elon- gated, the medius being more slender than the others; in the hind feet the thumb is opposable to the other toes; so that they are in this respect among the Rodentia, what the Opossums are among the Carnaria. The structure of their head is otherwise very different from that of the other Rodentia, and is related to the Quadrumana in more points than one. There is only one species of the Aye-Aye known. It was discovered at Madagascar by Sonnerat. It is the Cheir. madagascariensis. (The Aye- Aye.) Size of a Hare, of a brown colour, mixed with yellow; tail long and thick, with stout black bristles; ears large and naked. It is a nocturnal animal, to which motion seems painful; it burrows under ground, and uses its slender toe to convey food to its mouth. Linnaeus and Pallas united in one single group, under the name of All the Rodentia furnished with clavicles, which they could not distinguish Mus, Lin. (1) Pteromys, Winged Rat. (2) Cheiromys, a rat with hands. 92 MAMMALIA. by some very sensible external character, such as the tail of the Squirrel or that of the Beaver, from which resulted the utter impossibility of assigning to them any common character; the greater number had merely pointed lower incisors, but even this was subject to exceptions. Gmelin has already separated from them the Marmots, Dormice, and the Jerboas; but we carry their subdivisions much further, from considerations founded on the form of their grinders. Arctomys, Gm.(l) The Marmots, it is true, have the inferior incisors pointed like those of the greater number of animals comprehended in the great genus Mus; but their grinders, like those of the Squirrel, amount to five on each side above and four below, all bristled with points; accordingly, some species are in- clined to eat flesh and feed upon insects, as well as grass. There are four toes and a tubercle in place of a thumb to the fore feet, and five toes to the hind ones. In other respects these animals are nearly the direct reverse of the Squirrels, being heavy, having short legs, a middle sized or short hairy tail, and a large flat head, passing the winter in a state of torpor, and shut up in deep holes, the entrance of which they close with a heap of grass. They live in societies, and are easily tamed. Two species are known in the eastern continent. One is Arct. alpinus. (The Alpine Marmot.) Large as a Hare; tail short; fur yellowish grey, with ash coloured tints about the head. It lives in high mountains, immediately below the region of perpetual snow. America also produces some species. Arct. monax, Buff. (The Maryland Marmot.) Grey; tail blackish, as well as the top of the head. Arct. empetra, Pall. Less than the preceding; grey; red beneath. Spermofhiltts, Fred. Cuv. We apply this name to those Marmots that have cheek pouches. The superior lightness of their structure has caused them to be called Ground Squirrels. Eastern Europe produces one species: A. citillus. (The Souslik or Zizel.) A pretty little animal, of a greyish brown, watered or mottled with white, the spots very small, which is found from Bohemia to Siberia. It has a peculiar fondness for flesh, and does not spare even its own species. North America has several species of them, one of which is remarkable by the thirteen fawn coloured stripes which extend along the back on a blackish ground. It is the Thirteen striped Souslik, Arct. 13-lineaius, Harl.; or Sciurus 13-lineatus, Mitchell; or Arct. Hoodii, Sabine.' There is one of the Rodentia which it appears we must approximate to the Marmots, that is remarkable for living in large troops in immense bur- (1) Ardomys, Bear-Rat. 93 RODENTIA. rows, which have even been styled villages. It is called the Prairie Dog or Barking Squirrel, the latter appellation arising from its voice, which resem- bles the bark of a small Dog. It is the Arct. ludovicianus of Say, Jour, to the Rocky Mountains, I, 451. Myoxus, Gm.(l) The Dormice have pointed lower incisors, and four grinders, the crown of each of which is divided by enamelled lines. They are pretty little animals, with soft fur, a hairy and even tufted tail and a lively eye, which live on trees like Squirrels, and feed on fruit. They become torpid in winter like the Marmots, and pass through it in the most profound lethargy. M. glis, L. (The Fat Dormouse.) Size of a Rat; ashy grey-brown above, whitish underneath; of a deeper brown around the eyes; tail very hairy the whole of its length, and disposed somewhat like that of a Squir- rel, and frequently a little forked at the extremity. It inhabits the south of Europe, and nestles in the hollows of trees and fissures of rocks. It sometimes attacks small birds. This is probably the Rat, fattened by the ancients, among whom it was considered a delicacy of the very highest description. We should place near the Dormice, the Four grinders also, but formed in a peculiar way; the upper ones con- sisting of two blades, bent into the shape of a V, and the under ones of one blade only that is bent, and of another that is simple. The fur of several species is harsh and intermixed with flattened spines or prickles, like sword blades. From America. One of them is, Ech. chrysuros, Schreb. (The Golden-tailed Echimys.) More than twice the size of the Brown Rat; it is a beautiful animal, of a chesnut brown colour; white belly; an elongated crest of hairs, and a white longitudinal band on the head; the tail is long and black; the posterior half yellow. From Guiana. Others, again, have merely the ordinary kind of hair, more or less rough. The most remarkable is the Ech. dadylicus, Geoff. (The Long-toed Echimys.) "Which is still larger than the Chrysuros, and has the two middle toes of the fore feet double the length of the lateral ones. Its scaly tail is longer than the body; its fur is a yellowish grey, and the hairs on its nose form a crest directed in front. Echimys, Geoff. (2) Hydbomys, Geoff. The Hydromys have many external points of relation to the Echimys, but they are distinguished from all other Rats by their hind feet, two-thirds of (1) Myoxus, Rat with a pointed nose. (2) Echimys, or Spiny Rat. Am. Ed. 94 MAMMALIA. which are palmated; their two molars have also a peculiar character in the crown, which is divided into obliquely quadrangular lobes, whose summits are hollowed out like the bowl of a spoon. They are aquatic. The Houtias have four molars every where with flat crowns, the enamel of which is folded inwards so that it forms three angles on the external edge, and one only on the internal edge of the upper teeth, and the inverse in the lower ones. The tail is round and scantily pilose; they have, like the Rats, five toes to the hind foot, and four with the rudiment of a thumb to the fore feet; their form is that of a Rat; as large as a Rabbit or Hare. Two species are known: one is the Cap. prehensilis, Poeppig. Brown, with a whitish throat; tail red, as long as the body, and partly naked at the end. Both species inhabit the island of Cuba, and together with the Agoutis, at the time of the discovery, consti- tuted the principal game of the Indians. Capromys, Desmar. Mrs, Cuv. The true Rats have three molars every where, of which the anterior is the largest; its crown is divided into blunt tubercles, which, by being worn, give it the shape of a disk, sloped in various directions; the tail is long and scaly. These animals are very injurious from their fecundity, and the voracity with which they devour every thing that comes within their reach. There are three species which have become quite common in our houses, viz. M. musculus, L. (The Common Mouse.) Universally known. M. rattus, L. (The Black Rat.) Of which no mention is made by the ancients, and which appears to have entered Europe in the middle century. It is more than double the size of the Mouse in each of its dimensions. The fur is blackish. Several individuals have been occasionally found con- nected by the interlacing of their tails; constituting what the Germans style the King of Rats. M. decumanus, Pall. (The Norway or Brown Rat.) Which did not pass into Europe till the eighteenth century, and is now more common in large cities than the Black Rat itself. It is larger than the latter by one-fourth, and differs from it also by its reddish-brown hair.(l) These two large species appear to have originated in the East, and have been transported in ships, together with the Mouse, to all parts of the globe. Geubillus, Desm. The Gerbils have molars that differ very little from those of Rats, merely (1) It appears to belong to Persia, where it lives in burrows. It was not till 1727, that, after an earthquake, it arrived at Astracan, by swimming across the Volga. 95 RODENTIA. becoming sooner worn, so as to form transverse elevations. Their superior incisors are furrowed with a groove; their hind feet are somewhat longer in proportion than those of Rats in general, and their thumb and little toe slightly separated. Their tail is long and hairy. The sandy and warm parts of the eastern continent produce several species. G. indicus. (The India Gerbil.) Size of the fat Dormouse; fawn-co- loured above, whitish beneath; tail longer than the body, and blackish at the end. The Merioxes, Fred. Cuv. Which we separate from the other Gerbils, have the hind feet still lon- ger; the tail nearly naked, and a very small tooth before the superior mo- lars; characters which approximate them to the Jerboas. Their upper incisors are grooved like those of the Gerbils, and their toes also are similar. There is a small species in North America, the Mus. canadensis, Penn. (The Jumping Mouse.) Size of a Mouse; fawn- coloured grey; tail longer than the body. A very active animal, that shuts itself up in its burrow, and passes the winter in a state of lethargy. Cricetcs, Cuv. The Hamsters have nearly the same kind of teeth as Rats, but their tail is short and hairy, and the two sides of their mouth are hollowed into sacs or cheek pouches, in which they transport the grain they collect to their subterraneous abodes. C. vulgaris. (The Common Hamster.) Larger than the Rat; of a red- dish-grey above, black on the flanks and underneath, with three whitish spots on each side. The feet, a spot under the throat, and another under the breast white; some individuals are all black. This animal, so agreeably varied in colour, is one of the most noxious that exist, gathering large quantities of grain with which it fills its burrow that is sometimes seven feet deep. It is common in all the sandy regions, that extend from the north of Germany to Siberia. This last country produces several small species of Hamsters described by Pallas. The Arvicola:, like the Rats, have three grinders every where, but with- out roots, each one being formed of triangular prisms, placed on two alter- nate lines. They may be subdivided into several groups, viz. Arvicola, Lacep. The Ondatras or Musk Bats having- semi-palmated hind feet, a long scaly and compressed tail, of which one species only is well known: F. vulgaris. (The Canadian Musk-Rat or Ondatra.) As large as a Rab- bit, of a reddish-grey. In winter they construct, on the ice, a hut of earth, Fiber, Cuv. 96 MAMMALIA. in which several of them reside together, passing through a hole in the bottom, for the roots of the acorus on which they feed. They neither dive nor swim well. It is this habit of building which has induced some authors to refer the Ondatra to the genus Castor. The second subdivision is that of Arvicola, Cuv.— Illig. Our common Field Rats, which have a hairy tail, about the length of the body, and simple or not palmated feet. A. arvalis. (The Campagnol.) Size of a Mouse; of a reddish-asli colour; tail not so long as the body. It inhabits holes which it excavates in the earth, where it collects grain for the winter. The multiplication of this animal is sometimes so excessive as to cause much injury. Or the Lemmings, Cuv. have very short ears and tail, and the toes of the fore feet peculiarly well formed for digging. G. lemmus. (The Lemming.) A northern species, as large as a Rat, with black and yellow fur, very celebrated for its occasional migrations in innumerable bodies. At these periods they are said to march in a straight line, regardless of rivers or mountains; and while no obstacle can impede their progress, they devastate the country through which they pass. Their usual residence appears to be the shores of the Arctic ocean. G. hudsonius; Mus. hudsonius, Gm., Schreb. (The Lemming of Hudson’s Bay.) A light pearly-ash colour; without tail or external ears; the two mid- dle toes of the fore foot of the male seem to have double claws, which is owing to the skin at the end of the toe being callous and projecting from under the nail, a deposition of the part hitherto unknown, except in this animal. It is the size of a Rat, and lives under ground, in North America. GEORYfcHTTS, Illig. Otomys, Fred. Cuv. The Otomys are nearly allied to the Field Rats, and have also three grin- ders, but they are composed of slightly arcuated laminae arranged in file. Their incisors are grooved with a longitudinal furrow, and the tail is hairy, as well as the ears, which are large. 0. capensis, Fred. Cuv. (The Cape Otomys.) Size of a Rat; fur marked with black and fawn coloured rings; tail a third shorter than the body. The Jerboas have nearly the same kind of teeth as the true Rats, except that there is sometimes a very small one immediately before the upper mo- lars. The tail is long and tufted at the end; the head large; the eyes large and prominent; but their principal character consists in their posterior ex- tremities, which, in comparison with the anterior, are of a most immode- rate length, and above all, in the metatarsus of the three middle toes, which is formed of one single bone, resembling what is called the tarsus in Birds. Dims, Gm. RODENTIA 97 It is from this disproportion of the limbs that they were named by the an- cients Biped Rats, and in fact they seldom move otherwise than by great leaps on their hind feet. There are five toes to each of the fore feet, and in certain species, besides the three great toes to the hind feet, there are small lateral ones. They live in burrows, and become torpid during the winter. D. sagitta. The Jerboa has only three toes, and is the size of a Rat; a light fawn colour above; white beneath; tuft of the tail black, the tip white. Is found from Barbary to the north of the Caspian sea. Helamys, F. Cuv.—Pedetes, Illig.(l) The Jumping Hares, like the Jerboas, have a large head and great eyes, a long tail, and the anterior part of the body extremely small, in compari- son to the posterior, although the disproportion is much less than in the true Gerboas. The peculiar characters of the Helamys are four grinders every where, each one composed of two laminse; five toes to the fore-feet, armed with long and pointed nails, and four to their great hind ones, all separate, even to the bones of the metatarsus, and terminated by large nails, almost resembling hoofs. This number of toes is the inverse of that most common among the Rats. Their inferior incisors are truncated, and not pointed like those of the true Jerboas, and of the greater part of the ani- mals comprised under the genus of Rats. One species only is known, the H. Caffer. It is the size of a Hare, of a light fawn colour, and has a long tufted tail, with a black tip. Inhabits deep burrows at the Cape of Good Hope. The Rat-Moles have also been very properly separated from the Rats, al- though their grinders are three in number, and tuberculous, as in the true Rats, and the Hamsters, and are merely a little less unequal. Their inci- sors, however, are two large to be covered by the lips, and the extremities of the lower ones are trenchant, rectilinear, and transverse, not pointed. Their legs are very short; each foot has five short toes, and as many flat and slender nails. Their tail is very short, or rather there is none; the same observation applies to their external ear. They live under ground like the Moles, raising up the earth like them, although provided with much infe- rior means for dividing it; but they subsist on roots only. S. typhus. (The Zanni, Slepez, or Blind Rat-Mole.) A singular animal, which, from its large head, angular on the sides, its short legs, the total absence of a tail and of any apparent eye, has a most shapeless appearance. The eye is not visible externally, and we merely find beneath the skin a little black point, which appears to be organised like one, but which can- not serve for the purpose of vision, since the skin passes over it without opening or even growing thinner, and being as much covered with hair as Spalax, Gulden. (1) Pedetes, jumper; Helamys, Junjping-Rai. 98 MAMMALIA. any other part. It is rather larger than our Rat; its fur is smooth, and of an ash-coloui1, bordering on a red. This is the animal, in the opinion of Oli- vier, to which the ancients alluded when they spoke of the Mole as being perfectly blind. From the Rat-Moles themselves should have been separated the Batiiyergus, Illig.—Orycteres, Fr. Cuv. Which, with the general form, feet, and truncated incisors of that genus, have four grinders throughout. Their eye, though small, is visible, and they have a short tail. B. maritimus. (The Maritime Rat-Mole.) Nearly the size of a Rabbit; the supex-ior incisors furrowed with a groove, and the hair of a whitish grey. Geomys, Rafin.—Pseudostoma, Say. Which have four compressed prismatic molars throughout, the first double, the remaining three simple; the upper incisors furrowed with a double groove in front; five toes to each foot; the three middle anterior nails, that of the medius particularly, very long, crooked, and trenchant. They are low animals, and have very deep cheek-pouches, which open externally, enlarging the sides of the head and neck in a singular manner. One spe- cies only is known, G- bursarius. (The Canada Hamster.) Size of a Rat; fur of a reddish- grey; tail naked, and but half the length of the body. Inhabits deep bur- rows in the interior of North America. The Diplostomae are almost precisely similar to the Geomys, but they have no tail. These animals are also from North America. The species before us is reddish, and ten inches in length. We now pass to larger Rodentia than these of which we have hitherto spoken, but of which several still have well defined clavicles. Of this number is the Diplostoma, Rafin. The Beavers are distinguished from all other Rodentia by their horizon- tally flattened tail, which is nearly of an oval form, and covered with scales. They have five toes to each foot: those of the hinder ones are connected by membranes, and that next to the thumb has a double and oblique nail. Their grinders, to the number of four throughout, and with flat crowns, appear as if formed of a doubled bony fillet, or so as to show one sloping edge at the internal extremities of the upper row, and three at the exter- nal; in the Ipwer ones it is exactly the reverse. Beavers are large animals, whose life is completely aquatic; their feet and tail aid them equally in swimming. As their chief food is bark, and other Castor, Lin. RODENTIA. 99 hard substances, their incisors are very powerful, and grow as rapidly from the root, as they are worn away at the point. With these teeth they cut trees of every description. They have large glandular pouches which produce a highly odorous oily substance, employed in medicine under the name of Castor. C. fiber, Buff. (The Beaver.) Larger than the Badger, and of all quad- rupeds the most industrious in constructing a dwelling, to effect which these animals act in concert. They are found in the most solitary parts of North America. Beavers choose water of such a depth as is not likely to be frozen to the bottom, and, as far as possible, running streams, in order that the wood which they cut above, may be carried downwards by the current to the spot where it is to be used. They keep the water at an equal height, by dams composed of branches of trees, mixed with clay and stones, the strength of which is annually increased, and which finally, by the progress of vegetation, becomes converted into a hedge. Each hut serves for two or three families, and consists of two stories; the upper is dry for the residence of the animals, and the lower under water for their stores of bark, 8cc. The latter alone is open, and the entrance is under water, having no communication with the land. The huts are a kind of rude wicker-work, being made of interwoven branches and twigs of trees plastered with 'mud. There are always several burrows along the bank, in which they seek for shelter when their huts are attacked. They only reside in these habitations during the winter; in the summer they separate, and live solitary. The Beaver may be easily tamed, and accustomed to feed on animal matters. It is of a uniform reddish brown colour, and the fur, as is well known, is in great demand for hatters. It is sometimes found flaxen coloured, at others black, or even white. Myopotamus, Commer. The Couias resemble the Ileaver in size, in their four nearly similarly com- posed molars, in their powerful yellow-tinted incisors, and in their five-toed feet, the hinder ones of which are palmated; but their tail is round and elongated. They are aquatic animals also. One only is known, the M. coipus. (The Couia.) Which lives in burrows along the banks of rivers throughout a great part of South America. The Porcupines are known at the first glance by the stiff and sharp spines, or quills (as they are called), with which they are armed, like the Hedge- hogs among the Carnaria. Their grinders are four throughout, with flat crowns, variously modified by plates of enamel, between which are de- pressed intervals. Their tongue is bristled with spiny scales, and their cla- vicles are too small to rest upon the sternum and scapula, being merely suspended by ligaments. They live in burrows, and have many of the habits of the Rabbits. To their grunting voice, and thick truncated muz- zle, are they indebted for being compared to the Pig, and for their corres- ponding French appellation of porc-epic. Hystrix, Lin. 100 MAMMALIA. Porcupines, properly so called, Have the head more or less convex or vaulted, by the development of the bones of the nose. They have four toes before, and five behind, all armed with stout nails. II. cristata. (The Common Porcupine.) Inhabits the south of Italy, Spain, and Sicily; it is also found in Barbary. The spines are very long, and annulated with black and white; a mane composed of long hairs occu- pies the head and neck. The tail is short, and furnished with hollow trun- cated tubes, suspended to slender pedicles, which make a noise when shaken by the animal. Atuerurets, Cuv. Where neither the head nor muzzle is inflated, and in which we observe a long non-prehensile tail; the toes are like those of the true Porcupines. Hyst. fasciculata, L. Puff. (The Pencil-tailed Porcupine.) The upper part of the spines on the back grooved, and the tail terminated by a bundle of flattened horny slips, constricted from space to space. Eretisox, F. Cuv. The Ursons have a flat cranium; the muzzle short, and not convex; the tail of a middle size, and the spines short, and half hidden in the hair. One species only is known, the Hyslrix dorsata, L. (The Urson.) From North America. Stnetiieres, F. Cuv. The muzzle short and thick; the head vaulted in front, and the spines short; the tail long, naked at the extremity, and prehensile, like that of an Opossum or Sapajou. There are only four toes, all armed with claws; they climb trees. Hares have a very distinctive character in their superior incisors, which are double, that is, each of them has a smaller one behind it. Their molars, five every where, are individually formed of two vertical laminae soldered together, and in the upper jaw there is a sixth, simple and very small. They have five toes before and four behind. The inside of their mouth, and the under part of the feet are lined with hairs like the rest of the body. Lefus, Lin. Or the true Hares, have long1 ears; a short tail; the hind feet much longer than the fore ones; imperfect clavicles, and the infra-orbitary spaces in the skeleton reticulated. The species are so numerous and similar, that it is difficult to characterise them. L. Americanus, Gm. (The American Rabbit.) Nearly similar in size and colour to the European species; feet reddish; no black on either ears or tail. Nestles in the hollows of trees, up which it sometimes ascends as far as the branches. Flesh soft and insipid. Leptjs, Cuv. RODENTIA. 101 Lagomts, Cuv.(l) Moderate ears; legs nearly alike; the hole below the eye simple; clavicles nearly perfect, and no tail; they often utter a sharp cry. They have hitherto been found in Siberia only, and it is to Pallas that we are indebted for their discovery. The fossil bones of an unknown species of Lagomys have been discovered in the osseous breccia of Corsica. After the two genera of Porcupines and Hares, come the Rodentia, united by Linnaeus and Pallas under the name of Cavia; but to which it is impossible to affix any other common and positive character than that of their imperfect clavicles, although the species of which they are composed are very analogous to each other, both in body and habits. They are all from the western continent. Hydrochcerus, Erxleb.(2) Four toes before and three behind, all armed with large nails, and united by membranes; four grinders throughout, of which the posterior are the longest, and composed of numerous, simple and parallel laminae; the an- terior laminae, forked towards the external edge in the upper, and towards the internal one in the lower teeth. Only one species is known, the Capy- bara, which inhabits Guiana. Cavia, Illig. The Cobayes, or Guinea-Pigs, are miniature representations of the Cabiais; but their toes are separated, and each of their molars has only one simple lamina, and one that is forked on the outside in the upper ones, and on the inside in the lower. It is found in the woods of Brazil and Paraguay. Chloromys, Fr. Cuv.(3) The Agoutis have four toes before and three behind; four grinders through- out, almost equal, with flat crowns irregularly furrowed, rounded borders notched on the internal edge in the upper jaw, and on the external one in the lower. In disposition, and in the nature of their flesh, they resemble Hares and Rabbits, which they may be said to replace in the Antilles and hot parts of America. Ccelogenys, Fr. Cuv.(4) The Pacas, in addition to teeth very like those of the Agoutis, have a very small toe on the internal edge of the fore foot, and one on each side, equally small on their hinder one, making five toes everywhere. There is one species or variety fawn coloured, and another brown, both of which are spotted with white, the Cavia paca, L. (1) Lagomys, i. e. Rat-Hares. (2) Hydrochcerus, water-pig. (3) Chloromys, yellow rat (4) Ccelogenys, hollow cheek. 102 MAMMALIA. Finally, there remains an animal perhaps nearly allied to the Cavias, and possibly more so to the Lagomys or the Rats, which we are unable to dis- pose of, on account of our ignorance of its teeth; I mean the Chinchilla, thousands of whose skins are to be had, but of which we have never yet been able to procure the entire body. It is about the size of a small Rabbit; is covered with long, close and fine hair, the softest that is known among common furs. This quadruped inhabits the mountains of South America. ORDER VI. EDENTATA. The Edentata, or quadrupeds without front teeth, will form our last order of unguiculated animals. Although united by a character purely negative, they have, nevertheless, some positive mutual re- lations, and particularly large nails, which embrace the extremities of the toes, approaching more or less to the nature of hoofs: a slow- ness, a want of agility, obviously arising from the peculiar organi- zation of their limbs. There are, however, certain intervals in these relations, which render it necessary to divide the order into three tribes. The first of these is the TARDIGRADA. They have a short face. Their name originates from their ex- cessive slowness, the consequence of a construction truly heteroc- lite, in which nature seems to have amused herself by producing something imperfect and grotesque. The only genus now in exis- tence is The Sloths have cylindrical molars, and sharp canini longerthan those molars, two mammae on the breast, and fingers united by the skin, and only marked externally by enormous compressed and crooked nails, which, when at rest, are always bent towards the palm of the hand, or the sole of the foot. The hind feet are obliquely articulated on the leg, and rest only upon their outer edge; the phalanges of the toes are articulated by a close ginglymus, and the first, at a certain age, becomes soldered to the bones of the metacarpus or metatarsus, which also, in time, for want of use, experience the same fate. To this inconvenience in the organization of the extremities isddded another, not less great, in their proportions. The pelvis is so large, and their thighs Bradypus, Lin. EDENTATA. 103 so much inclined to the sides, that they cannot approximate their knees. Their gait is the necessary effect of such a disproportioned structure. They live in trees, and never remove from the one they are on until they have stripped it of every leaf, so painful to them is the requisite exertion to reach another. It is even asserted that to avoid the trouble of a regular descent, they let themselves fall from a branch. The female produces but a single young one at a birth, which she carries on her back. Bradypus tridactylus, L. (The Ai.) A species in which sluggishness, and all the details of the organization which produce it, are carried to the highest degree. The thumb and the little toe, reduced to small rudiments, are hidden under the skin, and soldered to the metatarsus and metacarpus; the clavicle, also reduced to a rudiment, is firmly united to the acromion. The arms are double the length of the legs; the hair on the head, back and limbs is long, coarse and non-elastic, something like dried hay, which gives it a most hideous aspect. Its colour is grey, the back being frequently spot- ted with white and brown. It is as large as a Cat, and is the onlymammifer- ous animal known which has nine cervical vertebra. Fossil skeletons of two Edentata of great size have been discov- ered in America, one of which, the Megatherium, has a head very similar to that of the Sloths, but deficient as to canini, and approach- ing in other parts of the skeleton, partly to the Sloths, and partly to the Ant-eaters. It is twelve feet long, and six or seven high. The other, the Megalonyx, is rather smaller, and the toes are the only parts of it that are well known, but they strongly resemble those of the preceding. The second tribe comprehends the Or the Ordinary Edentata with a pointed muzzle. Some of them still have cheek teeth. They form two genera. EDENTATA ORDINARIA, Dasypus, Lin. The Armadillos are very remarkable among1 the Mammalia, by the scaly and hard shell formed of compartments resembling little paving stones, which covers their head and body, and frequently their tail. This sub- stance forms one shield over the forehead, a second very large and convex over the shoulders, a third on the croup similar to the second, and between the two latter several parallel and movable bands, which allow the body to bend. The tail is sometimes furnished with successive rings, and at others, like the legs, merely with tubercles. These animals have large ears, and sometimes four, and at others five great nails before, but always five behind. They dig burrows, and live partly on vegetables, and partly on insects and 104 MAMMALIA. dead bodies. They all belong to the hot, or at least to the temperate parts of America. They may be divided into subgenera from considerations drawn from the structure of their fore feet and the number of their teeth. Most of them have only four toes to the anterior feet, the two middle ones of which are the longest. These subgenera are Cachicamus, Cuv. (to which belongs the 9-banded. Armadillo): Apara, Cuv. (3-banded Armadillo); Excoubertus, Cuv. (6-banded Armadillo); Ca- bassous, Cuv. (The Tatouay); Priodon, Fr. Cuv. (The Giant Armadillo); and the Ceamyphorus, Harl., of which only one is known, the C. truncatus, Harl. It appears that the fossil bones of a Tatou of gigantic size, being ten feet long exclusive of the tail, have been found in America. See Cuv. Oss. Foss. Y. part 1, p. 191, note. The animals of this genus were for a long time confounded with the Ant- Eaters on account of their using the same kind of food, having a similar head, and a tongue somewhat extensible; but they are distinguished from them by being furnished with grinders and flat nails, formed for digging and not trenchant. The structure of their teeth differs from that of all other quad- rupeds; they are solid cylinders traversed like reeds, in a longitudinal di- rection, with an infinitude of little canals. There is only one species known. Oryct. capensis. (The Cape Ground-Hog.) It is an animal aboutthe size of the Badger or larger; stands low; has short hair, and is of a brownish-grey. The tail is not so long as the body, and is covered with equally short hairs. It has four toes before, and five behind. Inhabits burrows, which it exca- vates with great facility. The flesh is eaten. Orycteropus, Geoff.(l) The other ordinary Edentata have no grinders, and consequently no teeth of any description. They also form two genera. Myrmecophaga, Lin. The Ant-Eaters are hairy animals with a long muzzle terminated by a small toothless mouth, from which is protruded a filiform tongue suscepti- ble of considerable elongation, and which they insinuate into Ant-hills and the nests of the Termites, whence these insects are withdrawn by being en- tangled in the viscid saliva that covers it. The nails of the fore feet, strong andtrenchant, and varying in number according to the species, serve to tear up the nests of the Termites, and afford the means of defence. They all inhabit the hot and temperate parts of the western continent, and produce but a single young one at a birth, which they carry on their back. (1) Oryderopusy feet fitted for digging. EDENTATA. 105 The Pangolins, or Scaly Ant-Eaters as they are called, are destitute of teeth, have a very extensible tongue, and live on Ants and Termites like true Ant-Eaters; but their body, limbs and tail are clothed with large tren- chant scales arranged like tiles, which they elevate in rolling themselves into a ball, when they wish to defend themselves from an enemy. There are five toes to each foot. Their stomach is slightly divided in the middle, and there is no caecum. They are confined to the eastern continent. Manis, Lin. The third tribe of the Edentata comprehends those animals, de- signated by M. Geoffroy, under the name of MONOTREMATA. The singularities of their skeleton are very a sort of clavicle, which is common to both shoulders, being placed before the ordinary clavicle, and analogous to the fourchette in birds. Fi- nally, besides their five nails to each foot, the males have a spur on the hinder ones, perforated by a canal which transmits the liquid secreted by a gland situated on the inner surface of the thigh. It is asserted that the wounds it inflicts are envenomed. These ani- mals have no external conch to their ears, and their eyes are very small. The Monotremata are only found in New Holland, and have been discovered since the settlement of the English. Two genera of them are known. Echidna, Cuv. The elongated slender muzzle of the Spiny Jlnt-Eaters, terminated by a small mouth, contains an extensible tongue similar to that of the Ant-Eaters and Pangolins, and, like them, they feed on Ants. They have no teeth, but their palate is furnished with several rows of small recurved spines. Their short feet have each five very long and stout nails fitted for digging; and the upper surface of the body is covered with spines like that of the Hedgehog. It appears, that, when in danger, they also possess the faculty of rolling- themselves into a ball. There are two species. E. hystrix. (The Spiny Echidna.) Completely covered with large spines. E. setosa. (The Bristly Echidna.) Is covered with hair, among which the spines are half hidden. Some naturalists consider it as a mere variety from age. Ornithorhynchus, Blumenb.—Platypus. Shaw. The elongated, and at the same time singularly enlarged and flattened muz- 106 MAMMALIA. zle of the Ornithorhynchi presents the closest external resemblance to the bill of a Duck, and the more so as its edges are similarly furnished with small transverse laminae. There is a membrane to the fore feet, which not only unites the toes, but extends far beyond the nails; in the hind feet the mem- brane terminates at the root of the nails; two characters, which, with the flattened tail, make them aquatic animals. The Ornithorhynchi inhabit the rivers and marshes of New Holland in the neighbourhood of Port Jackson. Two species only are known, one with smooth, thin, reddish fur, the Omithorhynchus paradoxus, Blumenb., and the other with blackish-brown, flat and frizzled hair. Probably these are only varieties of age. ORDER VII. PACHYDERMATA.(l) The Edentata terminate the series of unguiculated animals, and we have just seen that there are some of them whose nails are so large, and so envelope the extremities of the toes, as to approximate them in a certain degree to the hoofed animals. They still, however, possess the faculty of bending these toes round various objects, and of seizing with more or less force. The total deficiency of this faculty characterizes the hoofed animals. Their forms and habits present much less variety than those of the Unguiculata, and they can hardly be divided into more than two orders, those which rumi- nate, and those which do not; but these latter, which we designate collectively by the term Pachydermata, admit of subdivision into families. The first is that of the Pachydermata which have a proboscis and tusks. FAMILY I. PROBOSCIDIANA. The Proboscidians have five toes to each foot, very complete in the skeleton, but so encrusted by the callous skin which surrounds (1) Thick-skinned animals. 107 PACHYDERMATA. the foot, that their only external appearance is in the nails attached to the edge of this species of hoof. They have no canini or incisors properly so called, but in their incisive bone are implanted two tusks, which project from the mouth, and frequently attain to an enormous size. The magnitude requisite for the alveoli of these tusks renders the upper jaw so high, and so shortens the bones of the nose, that the nostrils in the skeleton are placed near the top of the face; but in the living animal they are continued out into a cylin- drical trunk or proboscis, composed of several thousands of small muscles, variously interlaced, extremely flexible, endowed with the most exquisite sensibility, and terminated by an appendage resem- bling a finger. This proboscis is to the Elephant what the hand is to the Monkey. But one living genus of the Proboscidiana is known, that of Elefiias, Lin. Or the Elephant, which comprehends the largest of the terrestrial Mammalia. Their food is strictly vegetable. The Elephants of the present day, clothed with a rough skin nearly des- titute of hair, are only found in the torrid zone of the eastern continent, where hitherto only two species have been ascertained. E. indicus, Cuv. (The Elephant of India ) An oblong head; the crown of the grinders presenting transverse undulating fillets, which are sections of the lamina which compose them worn by trituration. This species has rather smaller ears than the next one, and has four nails to the hind foot. It is found from the Indus to the Eastern ocean, and in the large islands in the south of India. They have been used from the earliest ages as beasts of draught and burden. The females have very short tusks, and in this respect many of the males resemble them. E. africanus, Cuv. (The African Elephant.) A round head; convex forehead; large ears; the crowns of the grinders divided into lozenges. Found from Senegal to the Cape of Good Hope. The tusks of the female are as large as those of the male, and the weapon itself, generally speaking, is larger than in the Indian species. The African Elephant is not now tamed, though it appears that the Carthaginians employed it in the same way that the inhabitants of India do theirs. The second genus of the Proboscidiana is the Mastodon, Cuv. The Mammoth has been completely destroyed, nor is there a single individual living. It had the feet, tusks, trunk, and many other details of conforma- tion in common with the Elephant; but differed from it in the grinders. M. giganteum. The Great Mastodon, in which the sections of the points 108 MAMMALIA. are lozenge-shaped, is the most celebrated species. It equalled the Ele- phant in size, but with still heavier proportions. Its remains are found ina wonderful state of preservation, and in great abundance throughout all parts of North America. They are infinitely more rare in the eastern continent. The M. angustidens was a third less than the great Mastodon, and much lower on its legs. Its remains are found throughout the greater part of Europe and of South America. In certain places, the teeth, tinged with iron, become of a beautiful blue when heated, forming what is called the oriental turquoise. FAMILY II. PACHYDERMATA ORDINARIA, Or the ordinary Pachydermata, have four, three or two toes. Those in which the toes make even numbers have feet somewhat cleft, and approximate to the Ruminantia in various parts of the skeleton, and even in the complication of the stomach. They are usually divided into two genera. Hippopotamus, Lin. These animals have a very massive and naked body; very short legs; the belly reaching to the ground; an enormous head terminated by a large inflat- ed muzzle, which encloses the apparatus of their large front teeth; the tail short; the ears and eyes small. They live in rivers, upon roots and other vegetable substances, and exhibit much ferocity and stupidity. One species only is known. H. amphibius. (The Hippopotamus.) Now confined to the rivers of the middle and south of Africa. Sus, Lin. Hogs, properly so called, have twenty-four or twenty-eight grinders, of which the posterior are oblong with tuberculous crowns, and the anterior more or less compressed, and six incisors in each jaw. S. scropha, L. The Wild Hog, which is the parent stock of our Domestic Hog and its varieties, has prismatic tusks that curve outwards and slightly upwards; the body short and thick; straight ears; the hair bristled and black; the young ones striped black and white. It does great injury to fields in tlie vicinity of forests, by tearing up the ground in search of roots. Natural- ists now separate from the Hogs the subgenera Phacockserus, and Dicotyle or the Peccaries. Here may come a genus now unknown in the living creation, which we have discovered, and named PACHYDERMATA. 109 It presents the most singular affinities with the various tribes of thePachy- dermata, and approximates in some respects to the order of the Ruminantia. The bones of this genus have hitherto only been found in the gypsum quarries near Paris. We have already ascertained five species. A NOPLOTIIERItTM. The ordinary Pachydermata which have not cloven feet, compre- hend, in the first place, three genera, very similar to each other in their grinders, but their incisors vary. The species of this genus, in this particular, even vary among themselves. They are large animals; each foot is divided into three toes, and the bones of the nose, which are very thick and moulded into a sort of arch, support a solid horn which adheres to the skin, and is composed of a fibrous and horny substance, resembling agglutinated hairs. They are naturally stupid and ferocious, frequent marshy places, and feed on herbs and branches of trees. They are found in India, Java, Africa and Sumatra. Eh. indicus, Cuv. (The Rhinoceros of India.) It has but one horn, and the skin is remarkable for the deep folds into which it is thrown behind and across the shoulders, and before and across the thighs. It inhabits the East Indies, and chiefly beyond the Ganges. Eh. afiicanus, Cuv. (The Rhinoceros of Africa.) Furnished with two horns; has no fold of of the skin, nor any incisor teeth, its molars occupying nearly the whole length of the jaw. Various fossil species are found in Siberia, Tuscany and Germany. Rhinoceros, Lin. Hyrax, Herm. The Damans, as they are termed, have long been placed among the Roden- tia, on account of their small size; if, however, we examine them closely, we shall find, the horn excepted, that they are Rhinoceroses in miniature, at least they have similar molars; but their upper jaw is furnished with two strong incisors curved downwards, and at an early age with two very small canini; the lower one has four incisors, but no canini. PalvEotiierium, Cuv. This is also a lost genus, with the same grinders as the two preceding, six incisors, and two canini in each jaw, like the Tapirs, and three visible toes to each foot; they had also, like the Tapirs, a short fleshy proboscis. We discovered the bones of this genus pele-mele with those of the Anoplothe- rium in the gypsum quarries near Paris. They also exist in many other parts of France. Eleven or twelve species are known already. Is another lost genus, which appears to be closely allied to the preceding Lophiodon, Cuv. 110 MAMMALIA. one. Ten or twelve species have been extracted from our old fresh water formations, the same in which the Palaeotherium is found. To these genera should succeed the genus Tapir, Lin. The nose resembles a small fleshy proboscis; there are four toes to the four feet, and three to the hind ones. For a long time but a single species was known, T. americanus, L. (The American Tapir.) Size of a small Ass; skin brown and nearly naked; tail moderate; neck fleshy, forming a sort of crest on the nape. Common in wet places, and along the rivers of the warm parts of South America. The flesh is eaten. Within a few years a second spe- cies has been discovered in the eastern continent. Fossil Tapirs are also scattered throughout Europe; and among others is a gigantic species, which in size must have nearly equalled the Elephant; it is the Tap. giganteus, Cuv. FAMILY III. SOLIPEDES. The Solipedes are quadrupeds which have only one apparent toe, and a single hoof to each foot, although under the skin, on each side of their metatarsus and metacarpus, there are spurs represent- ing two lateral toes. One genus only is known, that of The Horse has six incisors in each jaw. The male has also two small ad- ditional canini in the upper jaw, and sometimes in both, which are almost always wanting in the female. Between these canini and the first molar is that unoccupied space which corresponds to the'angle of the lips, where the bit is placed, by which alone, Man has been enabled to subdue and tame this powerful animal. E. caballus, L. (The Horse.) This noble associate of Man, in the chase, in war, and in the works of agriculture, the arts and commerce, is the most important and carefully attended of all the animals he has subdued. It does not seem to exist in a wild state at the present time; those places excepted, where Horses formerly domesticated have been set at liberty, as in Tartary and America, where they live in troops, each of which is led and defended by an old male. E. hemionus. (The Dzigguetai.) A species which,as to its proportions, is intermediate between the horse and the Ass, and lives in troops in the Equus, Lin. pachydermatA. 111 sandy deserts of central Asia. It is of an isabella or cream colour, with a black mane, and a dorsal line of the same colour; the tail is terminated by a black tuft. It is probably the Wild Mule of the ancients. E. asinus. (The Ass.) Known by its long ears, the tuft which termi- nates the tail, and the black cross on the shoulders, which is the first indi- cation of the stripes which distinguish the following species. Originally from the great deserts of central Asia, it is still to be found there in a wild state, and in innumerable troops, ranging from north to south according to the season; hence it thrives but poorly in the more northern climates. The hoarseness of its voice, or bray, depends upon two small peculiar cavi- ties situated at the bottom of the larynx. E. zebra. (The Zebra.) Nearly the same form as the Ass; the whole animal regularly marked with black and white transverse stripes, originally from the whole south of Africa. E. guaccha. (The Couagga.) Resembles the Horse more than the Zebra, but comes from the same country. The hair on the neck and shoulders is brown, with whitish transverse stripes; the croup is of a reddish grey; tail and legs whitish. The name is expressive of its voice, which resembles the barking of a Dog. E. montanus. (The Onagga.) An African species, smaller than the Ass, but having the beautiful form of the Couagga; its colour is a very light bay, with black stripes, alternately wider and narrower, on the head, neck and body. Those behind slant obliquely forwards; legs and tail white. ORDER VIII. RUMINANTIA. The term Ruminantia indicates the singular faculty possessed by these animals of masticating their food a second time, by bringing it back to the mouth after a first deglutition. This faculty depends upon the structure of their stomachs, of which they always have four, the three first being so disposed that the food may enter into either of them, the oesophagus terminating at the point of commu- nication. Camei/us, Lin. The Camels approximate to the preceding order rather more than the others. They not only always have canini in both jaws, but they also have two pointed teeth implanted in the incisive bone, six inferior incisors and from eighteen to twenty molars only; peculiarities, which, of all the llumi- 112 MAMMALIA nantia, they alone possess. Instead of the large hoof flattened on its inter- nal side which envelopes the whole inferior portion of each toe, and which determines the figure of the common cloven-foot, they have but one small one, which only adheres to the last phalanx, and is symmetrically formed like the hoofs of the Pachydermata. Cameeus, Cuv. Camels, properly so called, have the two toes united below, nearly to the point, by a common sole, and the back furnished with lumps of fat. They are large animals of the eastern continent, of which two species are known, both completely reduced to a domestic state. C. bactrianus. (The Two-Humped Camel.) Originally from central Asia, and which descends to the south much less than the C. dromedarius. (The One-Humped Camel.) Which has spread from Arabia into all the north of Africa, a great part of Syria, Persia, &c. Auchenia, Illig’. In the Lamas the two toes are separate; they are without humps. But two distinct species are known, the Lama and the Paco, both from the wes- tern continent, and much smaller than the two preceding ones. Moschus, Lin. The Musks are much less anomalous than the Camels, differing from the ordinary Ruminantia only in the absence of horns, in having a long canine tooth on each side of the upper jaw, which in the male issues from the mouth, and finally in having a slender peronacus, which is not found even in the Camel. These animals are remarkably light and elegant. M. moschiferus, L.; Buff. (The Musk.) This is the most celebrated species, and the size of a goat, has scarcely any tail, and is completely covered with hairs so coarse and brittle that they might be termed spines. All the rest of the Ruminantia, the males at least, have two horns, that is to say, two prominences of the frontal bones which are not found in any other family of animals. In some, these prominences are covered with an elastic sheath composed as if with agglutinated hairs, which increases by layers and during life; the name of horn is applied to the substance of this sheath, and the sheath itself is called the come creuse or horn mould. The prominence it envelopes grows with it, and never falls. Such are the horns of Oxen, Sheep, Goats and Antelopes. In others, the prominences are only covered with a hairy skin* continuous with that of the head; nor do the prominences fall, those of the Giraffe excepted. RUMINANTIA. 113 Finally, in the genus of the Stags, the prominences covered fora time with a hairy skin, similar to that on the rest of the head, have at their base a ring of bony tubercles, which, as they enlarge, compress and obliterate the vessels of that skin. It becomes dry and is thrown off; the bony prominences, being laid bare, at the expiration of a certain period separate from the cranium to which they were at- tached; they fall and the animal remains defenceless. Others, however, are re-produced generally larger than before, and destined to undergo the same fate. These horns, purely osseous, and sub- ject to periodical changes, are styled antlers. Cekvus, Lin. The Stags, consequently, are the only Ruminantia which have heads armed with antlers; the females, however, the Rein-Deer alone excepted, are al- ways without them. The substance of these antlers, when completely developed, is that of a dense bone, without pores or sinus. C. alces, L. (The Moose.) As large as a Horse and sometimes larger; stands very high; the muzzle cartilaginous and inflated; a sort of goitre, or pendulous swelling, variously shaped, under the throat; hair always very stiff and of a more or less deep ash-colour. Their horns increase with age so as to weigh fifty or sixty pounds, and to have fourteen branches to each horn. The Moose lives in small troops, and inhabits the marshy forests of the north of both continents. Its skin is valuable for various purposes. C. tarandus, L., Buff. (The Rein-Deer.) Size of a Stag, but has shorter and stouter legs; both sexes have antlers, divided into several branches, at first slender and pointed, and terminating by age in broad denticulated palms. There are various species of this genus, such as the Fallow-Deer, Common Stag, Virginia Deer, Axis, Roebuck, &c. Camelopardalis, Lin. The Giraffe is characterized in both sexes by conical horns, always covered with a hairy skin, and which are never shed. On the middle of the chan- frin is a tubercle or third horn, broader and much shorter, but likewise ar- ticulated by a suture. It is moreover one of the most remarkable animals in existence, from the length of its neck and the disproportioned height of its fore legs. Only one species is known, C. girafa, F. Cuv. (The Giraffe.) It is confined to the deserts of Af- rica, and has short grey hair sprinkled with fawn coloured angular spots, and a small fawn coloured and grey mane. It is the tallest of all animals, for its head is frequently elevated eighteen feet from the ground. Its dis- position is gentle, and it feeds on leaves. The RUMINANT!A WITH HOLLOW HORNS Are more numerous than the others, and we have been compelled 114 MAMMALIA. to divide them into genera from characters of but little importance, drawn from the form of their horns and the proportions of their different parts. To these M. Geoffroy has advantageously added those afforded by the substance of the frontal prominence or the bony nucleus of the horn. Antilope. The substance of the bony nucleus of the horns of the Antelopes is solid, and without pores or sinus, like the antlers of the Stag. They resemble the Stags moreover in the lightness of their figure and their swiftness. It is a very numerous genus, which naturalists have divided, and principally according to the form of the horns. The most remarkable species are the Gazelle, Springbuck, Plunging An- telope, Rock-Springer, Algazel, Chamois, Gnou, &c. The three remaining genera have the bony core of the horns principally occupied with cells, which communicate with the frontal sinuses. The direction of their horns furnishes the characters of the divisions. Capra, Lin. The horns of the Goats are directed upwards and backwards; the chin gene- rally furnished with a long beard, and the chanfrin almost always concave. C. aegragus, Gm. (The Wild Goat.) Appears to be the stock of all the varieties of our Domestic Goat. It is distinguished by its horns, trenchant in front, very large in the male; short, or altogether wanting in the female, which is also sometimes the case in the two species of Ibex. It lives in herds on the mountains of Persia (where it is known by the name of paseng), and perhaps on those of other countries, even in the Alps. The oriental bezoar is a concretion found in its intestines. C. ibex, L. (The Ibex.) Large horns, square in front, marked with transverse and prominent knots. It inhabits the most elevated summits of the highest ranges of mountains in the whole of the eastern continent. The horns of Sheep are directed backwards, and then incline spirally, more or less forwards: the chanfrin is more or less convex, and there is no beard. Ov. ammon, L. (The Argali of Siberia.) The male has very large horns, with the base triangular, angles rounded, flattened in front, and striated transversely; those of the female are compressed and falciform. To this genus belong the Mouflons of America, Africa and Sardinia. This animal inhabits the mountains of all Asia, and attains to the size of the Fallow Deer It is from the Mouflon or the Argali that we are supposed to derive the innumerable races of our woolly animals, which, next to the Dog, are most subject to vary. Ovis, Lin. 115 RUMINANTIA. The horns of the Ox are directed laterally, inclining upwards or forwards, in the form of a crescent; it is a large animal, with a broad muzzle; short and thick body, and stout legs. B. taurus, L. (The Common Ox.) Its specific characters are a flat fore- head, longer than broad, and round horns, placed at the extremities of the salient line or ridge which separates the forehead from the occiput. B. urus, Gm. (The Aurochs.) Generally, but erroneously, considered as the wild stock of our horned cattle. It is distinguished from them by its convex forehead, which is wider than it is high, by the insertion of its horns below the occipital crest, by the length of its legs, by an additional pair of ribs, by a sort of curly wool, which covers the head and neck of the bull, forming a short beard under the throat, and by its grunting voice. It is a savage animal that has now taken refuge in the great marshy forests of Lithuania, of the Krapacs and of Caucasus, but which formerly inhabited all the temperate parts of Europe. It is the largest quadruped proper to Europe. B. bison, L. (The Buffaloe or Bison of America.) The bony head very similar to that of the Aurochs, and covered like it, the neck and shoulders also, with frizzled wool, which becomes very long in winter; its legs and tail are shorter. Inhabits all the temperate parts of North America. B. bubalus, L. (The Buffalo.) Originally from India, and brought into Egypt, Greece and Italy during the middle century; has a convex forehead higher than wide, the horns directed sideways, and marked in front by a longitudinal ridge. This animal is subdued with difficulty, but is extremely powerful, and prefers the marshy grounds, and coarse plants on which the Ox could not live. Its milk is good, and the hide very strong, but the flesh is not esteemed. There is a race of them in India, whose horns include a space of ten feet from tip to tip: it is called Ami in Hindostan. B. grunniens, Pall. (The Yack.) A small species, with the tail com- pletely covered with long hairs like that of the Horse, and a long mane on the back. This animal, of which rElian has spoken, is originally from the mountains of Thibet. Its tail constitutes the standards still used by the Turks to distinguish the superior officers. B. moschatus, Gm. (The Musk Ox of America.) The horns approxi- mated and similarly directed, but meeting on the forehead in a straight line; those of the female are smaller and more widely separated; the forehead is convex, and the end of the muzzle furnished with hairs. Bos, Lin. 116 MAMMALIA. ORDER IX. CETACEA. The Cetacea are mammiferous animals without hind feet; their trunk is continued by a thick tail, terminating in an horizontal, car- tilaginous fin, and their head is united to the trunk by a neck, so thick and short, that no diminution of its diameter can be perceived, and composed of very slender cervical vertebrae, which are partly anchylosed or soldered together. The first bones of the anterior extremities are shortened, and the succeeding ones flattened and en- veloped in a tendinous membrane, which reduces them to true fins. Their external form is altogether that of Fishes, the tail fin excepted, which in the latter is vertical. They always therefore remain in the water; but as they respire by lungs, they are compelled to return frequently to its surface to take in fresh supplies of air. Independ- ently of this, their warm blood, their ears, with external, though small, openings, their viviparous production, the mammas with which they suckle their young, and all the details of their anatomy suffi- ciently distinguish them from Fishes. To the genera of the Cetacea hitherto admitted, we add others formerly confounded with the Morses. FAMILY I. CETACEA HERBIVORA. The teeth of Herbivorous Cetacea have flat crowns; this determines their mode of life, and the latter induces them to leave the water fre- quently, to seek for pasture on shore. They have two mammae on the breast, and hairy mustachios; two circumstances which, when observed from a distance as they raise the anterior part of the body vertically from the water, may give them some resemblance to hu- man beings, and have probably occasioned those fabulous accounts of Tritons and Sirens which some travellers pretend to have seen. Manatus, Cuv. The Lamantins, or rather the Manati, have an oblong body, terminated by an elongated oval fin; the grinders, eight in number throughout, have a CETACEA 117 square crown, marked with two transverse elevations. Vestiges of nails are discoverable on the edges of their fins, which they employ with tolera- ble dexterity in carrying their young, and in creeping; hence the comparison of these organs with hands, and the name of Manatus applied to the animal, of which Lamantin is a corruption. From their manner of living, they are also called Sea Cows, Mermaids, &c. They are found near the mouths of rivers in the hottest parts of the At- lantic Ocean, and it appears that those of the American rivers are specifically different from those of Africa. They grow to the length of fifteen feet. Their flesh is used as food. Halicore, Illig.(l) Grinders composed of two cones laterally united; the teeth implanted in the incisive bone are permanent, and increase to such an extent as to become true pointed tusks, but covered by thick fleshy lips, bristled with musta- chios. The body is elongated, and the tail terminated by a crescent-shaped fin. One species only is known, the Hal. dugong; Siren; Sea Cow,he. (The Dugong.) It inhabits the Indian Ocean, and is frequently confounded by travellers with the Manatus. Stellerus, Cuv. The Stelleri appear to have but a single compound grinder on each side, with a flat crown, and bristled with plates of enamel. Their fins have not even the little nails observed on those of the Manatus. According to Stel- ler, the first, and hitherto the only one who has described them, their sto- mach also is much more simple. One species only is known, which is confined to the north part of the Pacific Ocean. FAMILY II. CETACEA ORDINARIA. The Ordinary Cetacea are distinguished from the preceding by the singular apparatus from which they have received the name of Blowers. As a large quantity of water passes into their huge mouths along with their prey, some way was necessary by which they could get rid of it; accordingly, it passes through the nostrils by means of a peculiar disposition of the velum palati, and is accumulated in a sac situated at the external orifice of the cavity of the nose, whence, (1) Halicore, Maid of the Sea. 118 MAMMALIA. by the compression of powerful muscles, it is violently expelled through a narrow opening on the top of the head. It is in this way they produce those jets d’eau observed by navigators at so great a distance. Their nostrils, continually bathed in salt water, could not be lined with a membrane sufficiently delicate to enable them to de- tect odours, and accordingly, they have none of those projecting laminrn found in the nasal cavities of other animals; the olfactory nerve is deficient in several, and if there be any which enjoy the sense of smell, it must be in a very slight degree. Their larynx, of a pyramidal form, penetrates into the posterior nares to receive air and conduct it to the lungs, without compelling the animal to raise its head and throat above the water for that purpose: there are no salient laminse in the glottis, and the voice is reduced to a simple lowing. They have no vestige of hairs, but their whole body is covered with a smooth skin, under which is that thick layer of blub- ber abounding in oil, the principal object for which are they pursued. The stomach is divided into five and sometimes into seven distinct sacs; instead of one single spleen, they have several, small and glo- bular; those which are possessed of teeth, have them all conical and alike; they do not chew their food, but swallow it rapidly. Two small bones, suspended in the flesh, are the only vestiges of posterior extremities. Several have a vertical fin on the back, composed of a tendinous substance, but unsupported by bone. Their eyes, flattened in front, have a thick and solid sclerotica; the teguments of the tongue are soft and smooth. They may be again divided into two small tribes: those in which the head bears the usual proportion to the body, and those in which it is immoderately large. The first comprehends the Dolphins and the Narwhals. Delphinus, Lin. The Dolphins have teeth in both jaws, all simple, and almost always conical. They are the most carnivorous, and, in proportion to their size, the most cruel of their order. The Dolphins, properly so called, have a convex forehead, and the muz- zle forming a kind of rostrum, or snout, in front of the head, more slender than the rest. DE1PHIIT08, Cuv. CETACEA. 119 The Porpoises[ 1) have no rostrum, but a short and uniformly convex muzzle. Phocsuta, Cuv. The Narwhals have no teeth properly speaking, but mere long, straight and pointed tusks, implanted in the intermaxillary bone, and directed in the line of the axis of the body. The form of their body and that of their head greatly resemble that of the Porpoises. One species only is well known, the M. monoceros, L. (The Narwhal.) The tusk of this animal, which is spirally furrowed and sometimes ten feet in length, was for a long time called the horn of the Unicorn. It has, it is true, the germs of two tusks, but it is very seldom that both become equally developed. That of the left side usually attains its full growth, while the other always remains hidden in its alveolus. Monodon, Lin. The other Cetacea have the head so large as to constitute one third or one half of the length of the whole body; but neither the cranium nor the brain participate in this disproportion, which is altogether owing to an enormous development of the bones of the face. Physeter, Lin. The Cachalots^2) are Cetacea with a very voluminous head, excessively en- larged, particularly in front, in whose upper jaw there is neither whalebone nor tooth, or if any, very small, and not projecting; the lower jaw, narrow, elongated, and corresponding to a furrow in the upper one, is armed on each side with a range of cylindrical or conical teeth, which, when the mouth is closed, enter into corresponding cavities in the upper jaw. The supe- rior portion of their enormous head consists almost entirely of large cavities, separated and covered by cartilages, and filled with an oil which becomes fixed as it cools, well known in commerce by the name of spermaceti, a substance for which they are principally sought; the body not having much fat, and consequently yielding but little oil. These cavities, however, are very distinct from the true cranium, which is rather small, is placed under their posterior portion, and contains the brain as usual. The odorous substance, named ambergris, appears to be a concretion (1) Porpoises from porcus piscis, hog-fish. (2) Physeter, as well as physalus, signifies blower. Cachalot is the name used by the Biscayans; from cachau, which in the Cantabrian dialect means tooth- 120 formed in the intestines of the Cachalot, particularly during1 certain states of disease. The species of the Cachalots are far from being well ascertained. MAMMALIA. The Whales are equal in size to the Cachalots, and in the proportional magnitude of the head, although the latter is not so much enlarged in front; but they have no teeth. The two sides of their upper jaw, which is keel- shaped, or furnished with thin, compact, transverse laminse, called whale- bone, formed of a kind of fibrous horn, fringed at the edges, which serve to retain the little animals on which these enormous Cetacea feed. Their lower jaw, supported by two osseous branches arched externally and to- wards the summit, and completely unarmed, lodges a very thick and fleshy tongue, and when the mouth is closed, envelopes the internal part of the upper jaw, and the whalebone with which it is invested. These organs do not allow whales to feed on such large animals as their size might induce us to imagine. They live on fish, but principally on worms, Mollusca, and Zoophytes, selecting, it is said, the very smallest, which become entangled in the filaments of the whalebone. JBal. mysticetus, L. (The Common Whale.) It has long been consid- ered the largest of all animals; but from the late observations of captain Scoresby, it appears that it scarcely ever exceeds seventy feet, a length frequently surpassed by the wrinkle-bellied whales. It has no dorsal fin. To procure its fat or blubber, which is sometimes several feet in thickness, and contains immense quantities of oil, whole fleets are annually equipped. Formerly sufficiently bold to venture into our seas, it has gradually retired to the extreme North, where the number is daily diminishing. Besides oil, it produces black and flexible whalebone, eight or ten feet in length, each individual having from eight to nine hundred strips on each side of the palate. One hundred and twenty tuns of oil are obtained from a single whale. Shell-fish attach themselves to its skin, and multiply there as on a rock, and some of the Balanus family even penetrate into it. Lin. OF THE OVIPAROUS VERTEBRATA. Although the three classes of the Oviparous Vertebrata differ greatly from each other in their quantum of respiration, and in all that relates to it, viz. the power of motion and the energy of the senses, they present several common characters when opposed to the Mammalia, or Viviparous Vertebrata. 121 OVIPARA. Oviparous production consists, essentially, in this—the young ani mal is not attached to the parietes of the oviduct, but remains sepa- rated from it by its most external envelope. Its aliment is prepared before hand, and enclosed in a sac attached to its intestinal canal; this is what is called the vitellus, or yolk of egg, of which the young animal is a sort of appendage, at first imperceptible, which is nour- ished and augmented by absorbing the fluid of that yolk. Such of the Ovipara as breathe with lungs have the egg furnished with a highly vascular membrane, which appears to serve for the purposes of respiration; it is connected with the bladder, and is analogous to the allantoid of the Mammalia. It is neither found in Fishes nor in the Batrachians, which latter, when young, respire, like Fishes, by branchiae. CLASS II. AYES. Birds are Oviparous Vertebrata, with double systems of circula- tion and respiration, organized for flight. Their lungs, undivided and attached to the ribs, are enveloped by a membrane pierced with large holes, which allow the air to pass into several cavities of the chest, lower part of the abdomen, arm- pits, and even of the interior of the bones, so that not only is the surface of the pulmonary vessels bathed in the ambient fluid, but that also of an infinitude of vessels in other parts of the body. Thus, in certain respects, Birds respire by the branches of the aorta, as well as by those of the pulmonary artery, and the energy of their ir- ritability is in proportion to their quantum of respiration.(l) The whole body is so constructed as to profit by this energy. Their anterior extremities, destined to sustain them in flight, could neither serve them for standing, nor for prehension; they are bipeds then, and pick up objects from the earth with their mouth; their (1) Two common Swallows consume as much pure air as a Guinea-Pig. 122 AVES. body, consequently, is inclined before their legs, the thighs directed forwards, and the toes elongated, to form a sufficient base for it. The pelvis is very much extended in length, in order to furnish points of attachment to those muscles which support the trunk upon the thighs. There is even a suite of muscles reaching from the pelvis to the toes, passing over the knee and heel, so that the simple weight of the bird flexes the toes; it is thus that they are enabled to sleep in secu- rity, while perched on one foot. The neck and the beak are elongated to reach the ground, but the former has the requisite flexibility for bending backwards when at rest,—consequently, it has many vertebra?. The trunk, on the contrary, which serves as a point d’appui to the wings, has but little mobility; the sternum, particularly, to which are attached the muscles which lower the wings in flight, is of great extent, and has its surface still more enlarged by a salient process in its middle. It is originally composed of five pieces. The greater or less degree of the ossification of the notches, and the extent of the interval they leave between them and the principal bone, denote a relative strength of wing and power of flight. The Diurnal Birds of Prey, the Swal- lows and the Humming-birds, lose, as they grow old, all traces of these unossified spaces. The fourchette produced by the junction of the two clavicles, and the two powerful stretches formed by the coracoid apophyses, keep the shoulders apart, notwithstanding the efforts requisite for flight, that act in an opposite direction; the greater the power of flight, the more open and strong is the fourchette. The wing, sup- ported by the humerus, fore-arm and hand, the latter of which is elongated and has one finger and vestiges of two others, is furnished throughout its length with a range of elastic quills, which greatly extends the surface that resists the air. Those which belong to the hand are termed primaries, and there are always ten; those attached to the fore-arm are called secondaries, but their number varies; weaker feathers appended to the humerus are called scapulars; the bone, which is analogous to the thumb, is also furnished with what are termed spurious quills. Along the base of the quills is a range of feathers named coverts. The bony tail is very short, but has a range of large quills, which, when spread out, assist in supporting the bird; they are generally twelve in number, sometimes fourteen, and in the Gallinaceas eighteen. AYES. 123 The legs have a femur, a tibia and a fibula, which are connected with the femur by an articulation with a spring, which keeps up the extension without any effort on the part of the muscles. The tarsus and metatarsus are represented by one single bone, terminating be- low in three pulleys. Most commonly there are three toes before, and a thumb behind; the latter being sometimes deficient. In the Martins it is directed forwards. In the Climbers, on the contrary, the external toe and the thumb are directed backwards. The number of articulations increases in each toe, commencing with the thumb, which has two, and ending with the external toe, which has five. Birds are generally covered with feathers, the kind of tegument best adapted for defending them from the rapid variations of tempe- rature to which their movements expose them. The air cavities which occupy the interior of their body, and even supersede the marrow in the bones, increase their specific lightness. The sternal, as well as the vertebral portion of the ribs is ossified, in order to give more power to the dilatation of the chest. To each rib is an- nexed a small bone, which soon becomes soldered to it, and is directed obliquely towards the next one, thereby giving additional solidity to the thorax. The eye is so constructed, in Birds, as to distinguish, with equal facility, objects at a distance, or in its immediate vicinity; a vascular and plaited membrane, which stretches from the bottom of the globe to the edge of the crystalline, probably assists in effecting this, by displacing that lens. The anterior surface of the ball is also strengthened by a circle of bony pieces, and besides the two ordi- nary eye-lids, there is always a third one placed at the internal angle, which, by a remarkable muscular apparatus, can be drawn over the eye like a curtain. The breadth of the osseous openings of the nostrils determines the strength of the beak; and the cartilages, membranes, feathers and other teguments which narrow down those apertures, influence the power of smell, and the nature of the food. There is but little muscular substance in the tongue, which is sup- ported by a bone articulated with the hyoid; in most Birds this or- gan is not very delicate. The feathers, as well as the quills, which only differ in size, are composed of a stem, hollow at base, and of laminae, which are them- selves furnished with smaller ones; their tissue, lustre, strength, and 124 AYES. general form vary infinitely. The touch must be feeble in all such parts as are covered with them, and as the beak is almost always corneous, and has but little sensibility, and the toes are invested with scales above, and a callous skin underneath, that sense can have but little activity in this class of animals. Birds moult twice a year. In certain species, the winter plumage differs in its colours from that of summer; in the greater number, the female differs from the male in an inferior vividness of tints, and when this is the case, the young of both sexes resemble the former. When the adult male and female are of the same colour, the young ones have a livery peculiar to them. The brain of Birds has the same general characters as that of other Oviparous Yertebrata, but is distinguished by its very great propor- tionate size, which often surpasses even that of this organ in the Mammalia. The rings of the trachea are entire; there is a glottis at its bifur- cation most commonly furnished with peculiar muscles, which is called the inferior larynx; this is the spot where the voice of birds is produced; the immense volume of air contained in the air sacs con- tributes to its strength, and the trachea, by its various forms and motions, to its modifications. The superior larynx, which is ex- tremely simple, has but little to do with it. The horny substance which invests the two mandibles, performs the office of teeth, and is sometimes so jagged as to resemble them; its form, as well as that of the mandibles which support it, varies extremely, and according to the kind of food used by each species. The digestion of Birds is in proportion to the activity of their life, and the force of their respiration. The stomach is composed of three parts: the crop, which is an enlargement of the oesophagus; a membranous stomach, in the thickness of whose parietes are a mul- titude of glands whose juices humect the aliment; and finally, the gizzard, armed with two powerful muscles, united by two radiated tendons, and lined internally with a kind of cartilaginous velvet. The food is the more easily ground there, as Birds constantly swal- low small stones, in order to increase its triturative power. In the greater part of the species which feed exclusively on flesh or fish, the muscles and villous coat of the gizzard are greatly atten- uated; and it seems to make but a single sac with the membranous stomach. The dilatation of the crop is also sometimes wanting. AVES. 125 The egg, detached from the ovary, where it consists merely of yolk, imbibes that external fluid, called the white, in the upper part of the oviduct, and becomes invested with its shell at the bottom of the same canal. The chick contained within it is developed by in- cubation, unless the heat of the climate suffices for that purpose, as is the case with the egg of the Ostrich. The young Bird lias a lit- tle horny point at the extremity of the beak, with which it splits open the shell, and which falls off a few days after it is hatched. The industry and skill exhibited by Birds in their variously con- structed nests, and their tenderness and care in protecting their eggs and young, are known to every one; it is the principal part of their instinct. Their rapid transitions through different regions of the air, and the vivid and continual action of that element upon them, enable them to anticipate atmospheric changes, to an extent of which we can form no idea; and caused the ancients, in their superstition, to attribute to them the power of prescience or divination. It is un- questionably on this faculty, that depends the instinct which acts upon the Birds of passage, prompting them to seek the south on the approach of winter, and the north on the return of spring. They have memory, and even imagination—for they dream. They are easily tamed, may be taught to render various services, and retain the air and words of songs. Division of the Class of Birds into Orders. Their distribution is founded, like that of the Mammalia, on the organs of manducation or the beak, and on those of prehension, that is on the beak, and particularly on the feet. The first that arrest our attention are the palmated feet, or those in which the toes are connected by membranes, which distinguish all Swimming Birds. The position of these feet behind; the length of the sternum; the neck, often longer than the legs to enable it to reach below; the dense, polished plumage, impermeable to water, all concur with the feet in making good navigators of the Palmipedes. In other Birds, which most commonly are partially web-footed, at least between the external toes, we observe elevated tarsi; legs divest- ed of feathers at their lower extremities; a long thin shape, and in fine, all the requisites for wading along the shores of rivers to seek their food. Such, in fact, is the regimen of the greater number; and al- though some of them inhabit dry grounds, they are called Shore- Birds, or Waders. 126 AYES Among the true land birds, the Gallinaceae, like our domestic Cock, have a heavy carriage, a moderate beak, the upper mandible of whicli is arched; the nostrils partly covered by a soft and inflated scale; the toes almost always indented on the edges, and short mem- branes between the bases of the anterior ones. They fly heavily, and but a short distance at a time. Their chief food is grain. Birds of prey have a hooked beak, the point of which is sharp, and curved downwards; the nostrils pierced in a membrane which in- vests the whole base of that beak, and feet armed with vigorous talons. They live on flesh, pursue other birds, and are consequently, for the most part, vigorous in flight. The greater number have still a slight web between the external toes. The Passerinae comprise many more species than all the other families; but their organization presents so many analogies that they cannot be separated, although varying greatly in size and strength. Their two external toes are united at the base, and sometimes for a part of their length. Finally, the name of Scansorias, or Climbing Birds, has been given to those whose external toe, like the thumb, is directed backwards, because the greater number profit by a conformation so favourable to a vertical position, to climb trees. Each of these orders is subdivided into families and genera, and principally from the conformation of the beak. ORDER I. ACCIPITRES, Lin. Birds of Prey are known by their hooked beak and talons, pow- erful weapons, with which they pursue other Birds, and even the weaker Quadrupeds and Reptiles. They are among Birds what the Carnivora are among Quadrupeds. The muscles of their thighs and legs indicate the strength of their claws; their tarsi are rarely elongated; they have, all, four toes; the nail of the thumb and that of the internal toe are the strongest. They form two families, the diurnal and the nocturnal. ACCIPITRES. 127 FAMILY I. DIURN JE. The eyes of the diurnal Birds of prey are directed sideways; they have a membrane called the cera, or cere, covering the base of the beak, in which the nostrils are pierced; three toes before, one behind, without feathers, the two external ones almost always united at base by a short membrane; the plumage dense, the quills strong, and great power on the wing. Their sternum is broad and completely ossified in order to give more extended attachments to the muscles of the wings, and their fourchette semicircular and widely separated, the better to resist the violent flexions of the humerus necessary to a rapid flight. Linnaeus comprehended them all under two genera, which are so many natural divisions, the Vultures and the Falcons. Vultuk, Lin. The Vultures have eyes flush with the head, and reticulated tarsi, that is, covered with small scales; an elongated beak, curved only at the end, and a greateror less portion of the head, or even of the neck divested of feathers. The strength of their talons does not correspond with their size, and they make more use of their beak than of their claws. Their wings are so long that in walking they keep them in a state of semi-extension. They are a cowardly genus, feeding oftener on carrion than on a living prey; when they have fed, their crop forms a great protuberance above the fourchette, a fetid humour flows from their nostrils, and they are almost reduced to a state of stupid insensibility. Vult. gryphus, L. (The Condor.) Blackish; a great part of the wing ash coloured; collar silky and white; the male, in addition to his superior caruncle, which is large and entire, has another under the beak, like the cock. This species has been rendered famous by exaggerated reports of its size; it is, however, but a little larger than the Laemmer-geyer, to which it assimilates in habits. It is found in the most elevated mountains of the Andes in South America, and flies higher than any other bird. The genus Yultur is now divided into Vultur proper, Cathartes( our Tur- key Buzzard), Percnopterus (the Urubu or Carrion Crow of the south), and Gypactos, to which last belongs the Lsemmer-geyer, the largest bird of prey in the eastern continent. The Falcons form the second, and by far most numerous division of the diurnal birds of prey. Their head and neck are covered with feathers; Falco, Lin. 128 AVES their eye-brows project, which occasions the eye to appear sunk, and gives to their physiognomy a character very different from that of the Vultures: the greater number prey on living animals, but they differ in the courage with which they pursue it. Their first plumage is often very differently coloured from that of the adult, which is only assumed in their third or fourth year, a circumstance which has occasioned a great multiplication of species. The female is generally one-third larger than the male, which, on this account, is styled a tarsel or tercel. We should, first of all, subdivide this genus into two great sections. NOBLE BIRDS OF PREY. The true Falcons constitute the first, and, in proportion to their size, are the most courageous, a quality which is derived from the power of their arms and wings; their beak, curved from its base, has a sharp tooth on each side of its point, and the second quill of their wings is the longest, the first nearly equalling it, which renders the whole wing longer and more pointed. From this, also, result peculiar habits: the length of the quills of their wings diminishes their vertical power, and compels them, in a calm state of the atmosphere, to fly obliquely forwards, so that when they wish to rise directly upwards, they are obliged to fly against the wind. F. communis, Gm. (The Common Falcon.) As large as a Hen, and dis- tinguished by a triangular, black moustache on the cheek, larger than that of any other species of the genus; it varies as to colours according to its age. It is this celebrated species which has given its name to that kind of hunt- ing in which birds of prey are used. It inhabits the whole north of the earth, and builds in the most elevated and inaccessible cliffs. Falcons, properly so called. Hiehovalco, Cuv. (1) The Gerfalcons have wing quills similar to those of the other Noble birds, which they perfectly resemble in disposition; but their beak has only an emargination like that of the Ignoble ones. Only one species is well known. F. candicans. (The Gerfalcon.) One fourth larger than the Falcon, and the most highly esteemed by falconers. It is chiefly obtained from the north; its usual plumage is brown above, with an edging of paler points on each feather, and transverse lines on the coverts and quills. The second section of the great genus Falco is that of the So called, because they cannot be easily employed in falconry; a tribe much more numerous than that of the Nobles, and which it is also necessary IGNOBLE BIRDS OF PREY. (1) Hierax, Iliero-falco, Sacred Falcon, &c. names connected with the superstitions of the Egyptians respecting certain birds of prey. Gerfalcon is a corruption of Hierofalco- ACC1PITRES. 129 to subdivide considerably. The fourth quill of their wings is almost always the longest, and the first is very short, which produces the same effect as if their wing were obliquely truncated at the tip, whence, exteris pari- bus, result diminished powers of flight; their beak also is not so well armed, there being no lateral tooth near its point, but a mere slight emargination about the middle of its length. Aariu, Briss. The Eagles which constitute the first tribe, have a very strong beak, straight at base and only curved towards the point. Among them we find the largest species of the genus, and the most powerful of all the birds of prey. The Eagles are now subdivided into Aquila proper (to which belongs our Ring-tailed Eagle), the Halisetus of Savigny or Fisher Eagles of Cuvier (the Pygargus and our Bald Eagle), Pandion (the Osprey), Circaetus, llarpyia (where we find the “ Great Harpy of America” that possesses such strength of beak as to be able to cleave a man’s skull), and Morphnus, differ- ing in certain peculiarities of the tarsi, claws, and wings. The Goshawks, which form the second division of the Ignobles, like the last three tribes of Eagles, have wings shorter than their tail; but their beak is curved from its base, as in all those which are to follow. We particu- larly designate as Gosuawks those which have rather short and scutellated tarsi. The name of Spahrowiiawk, (Nisus, Cuv.) is generally appropriated to those whose tarsi are higher and scutellated; but the transitions from one division to the other are almost insensible. F. nisus, L. (The Common Sparrowhawk.) Coloured like the Gos- hawk, but its legs are longer, and it is a third less in size. It is employed however by falconers. Asttth, Bechst. The Kites have short tarsi, and weak toes and nails, which, added to a beak equally disproportioned to their size, render them the most cowardly species of the whole genus; they are distinguished by their excessively long wings, and their forked tail, which give them great powers of flight. F.furcatus, L. (The Fork-tailed Kite.) White; wings and tail black; the two external quills of the latter very long; larger than the preceding. It attacks reptiles. Mnvus, Bechstein. PerniSj Cuv. The Honey-Buzzards, with the weak beak of the Kites, have a very pecu- liar character in the space between the eye and the beak, which, in all the rest of the genus Falco, is naked, and simply furnished with a few hairs, but in these is covered with a dense plumage, the feathers of which are cut 130 AVES like scales; their tarsi are half feathered above and reticulated: their tail is equal, wings long, and their beak curved from its base like all those which follow. Buteo, Bechstein. The Buzzards have long wings; the tail equal; the beak curved from its base; the space between it and the eyes naked; the feet strong. The Harriers differ from the Buzzards in their elevated tarsi, and in a kind of collar on each side of their neck, formed by the tips of the feathers which cover their ears. Finally, the Circus, Bechstein. Seupentahics, Cuv. The Snake-Eater or Secretary, is an African bird of prey, whose tarsi are at least double the length of those of the preceding ones, which caused some naturalists to place it among the Grallatorise, or Waders; but its legs, completely invested with feathers, its hooked and cleft beak, projecting eye-lids, and all its anatomical details place it in the present order. It inha- bits the dry and open grounds in the vicinity of the Cape, where it hunts reptiles on foot; its claws consequently become much worn. Its chief strength lies in the leg. FAMILY II. NOCTURNE. Nocturnal birds of prey have a large head; great eyes, directed forwards, surrounded by a circle of slender feathers, the anterior of which cover the cera of the beak, and the posterior, the opening of the ear. Their enormous pupil permits the entrance of so many rays of light, that they are dazzled by that of day. Their cranium, which is thick, but formed of a light substance, is excavated by large sinuses, which communicate with the ear, and which probably as- sist in strengthening the sense of hearing; but the organs of flight are not very vigorous; their fourchette is weak; their feathers being soft, and covered with a fine down, make no noise in flying. They can direct their external toe either forwards or backwards. These birds are chiefly on the wing during twilight, and when the moon shines. When attacked in the day time, they do not fly off, but stand more erect, assume odd postures, and make the most ludicrous gestures. Their prey is wholly animal, consisting of Mice, small Birds, and' ACCIPITRES. 131 Insects. Small birds have a natural antipathy to them, and fre- quently assemble from all quarters to attack them. They form but one genus, The Owls may be divided by their tufts, the size of their ears, the extent of the circle of feathers which surrounds their eyes, and some other char- acters. Strix, Lin. Otus, Cuv. The Homed Owls, or those which have two tufts of feathers on the fore- head, (vulg. horns) which they can erect at pleasure; the conch of their ear extends in a semicircle from the beak to the top of the head, and is fur- nished in front with a membranous operculum. Their feet are feathered down to the nails. Such is Str. otus, L. (The Common Owl.) Fawn coloured, with longitudinal brown spots on the body and underneath; wings and back vermiculated with brown; horns half the length of the head; eight or nine bands on the tail. The genus Strix . as already stated, now forms several subgenera such as Otus, Symium, Bulo, Scops, and Noctua. To the last belongs the Str. nyctea, L. (The Snowy Owl.) This bii’d almost equals the Grand Due in size. Its snow-white plumage is marked with transverse brown spots, which disappear with age. It inhabits the north of both continents, builds upon high rocks, and pursues Hares, Grouse, &.c. ORDER II. PASSERINiE. (1) This order is the most numerous of the whole class. The birds which compose it have neither the violence of the Birds of Prey, nor the fixed regimen of the Gallinacese, nor of the Water- birds ; Insects, fruit, and grain constitute their food, which consists the more exclusively of grain, in proportion to the largeness of their beak, and of Insects, as it is the more slender. Those which have strong beaks pursue even small birds. Among them we find the singing birds, and the most complicated inferior larynx. (1) Passerine; from Passer a sparrow. 132 AYES The proportional length of their wings, and their power of flight are as various as their habits. Our first division is founded upon the feet; we then have recourse to the beak. The first and most numerous comprehends those genera in which the external toe is united to its fellow by one or two phalanges only. FAMILY I. DENTIROSTRES. In this family the beak is emarginate on the sides of the point. It is in this family that vve find the greatest number of insectivorous birds, though almost all of them likewise feed on berries and other soft fruits. In the Shrikes, or Lanius, Lin. The beak is conical or compressed, and more or less hooked at the point. Shrikes live in families, and fly irregularly and precipitately, uttering shrill cries; they build on trees, lay five or six eggs, and take great care of their young. They have a habit of imitating, on the spot, a part of the songs of such birds as live in their vicinity. The upper part of the females and of the young is marked with fine transverse lines. Lan. collurio, Gm. (The Butcher Bird.) Top of the head and rump ash coloured; back and wings fawn coloured; whitish above; a black band over the eye; wing-quills black edged with fawn colour, those of the tail black, the lateral ones white at base. It destroys small Birds, young Frogs and great numbers of Insects, which it sticks upon tire thorns of bushes, in order to devour them at leisure, or to find them again when wanted. The subdivisions of tills genus are Vanga, Ocypterus, Barita, &.C., differ- ing chiefly in the arrangement of the beak. The Fly-Catchers have a horizontally depressed beak, furnished with hairs at its base, and the point more or less hooked and emarginated. Their general habits are those of the Shrikes, and they live on small Birds or In- sects, according to their size. The weakest of them gradually approach the form of the Wagtails. This genus is now divided into various sub genera, such as Tyrannus, JMuscipeta, Muscicapa, Gymnocephalus, he. The species are very numerous. Muscicapa, Lin. AairELis, Lin. The Crown-Birds have the depressed bcalc of the Flycatchers, but it is somewhat shorter in proportion, tolerably broad and slightly ax'cuatcd. PASSERINE. 133 Those in which it is the most pointed and strong, have still a decidedly insectivorous regimen: they are called Piatjiiau from then' note—the Que- buea, Vieill. They inhabit America, where they pursue Insects, in flocks. They are now distributed into several subgenera, such as Tersina, Ceble- pyris, Bomlycilla (the Chatterers), Procnias, &c. Edolius, Cuv. Belongs also to the great series of the Flycatchers; the beak is depressed and emarginate at the end; its upper ridge is acute; but what distinguishes it, is, that both mandibles are slightly arcuated throughout their length; the nostrils are covered with feathers, and there are, besides, long hairs form- ing mustachios. The species are numerous in the countries bordering on the Indian Ocean. They are generally of a black hue, have a forked tail, and live on Insects; some of them, it is said, sing as sweetly as the Nightingale. The Tanagers have a conical beak, triangular at base, slightly arcuated at its ridge, emarginate near the end; wings and flight short. They resemble the Finches in habits, and feed on grain as well as on berries and insects. The greater number are remarkable for their bright colours. Tanagra, Lin. Turdtjs, Lin. The Thrushes have a compressed and arcuatedbeak, but its point is not hook- ed, and its emarginations do not form such deep notches as in the Shrikes; as we have already stated, however, there are gradual transitions from one genus to the other. Their regimen is more frugivorous, generally feeding on berries. Their habits are solitary. T. polyglottus, L. (The Mocking-Bird.) From North America; ash- coloured above, paler beneath, with a white band on the wing. It is cele- brated for the astonishing facility with which it imitates die notes of other birds, and even all kinds of sounds. Buffon has very properly separated from the Thrushes, the Myothera, Illig. The Jlnt-Catchers are known by their long legs and short tail. They live on In- sects, and chiefly on Ants. They are found in both continents. M. rex. (King of the Ant-Catchers.) The largest of all, and stands the highest; its tail, on the other hand, is the shortest, and at the first glance it might be taken for a Wader; it is about the size of a Quail, and its grey plu- mage is agreeably chequered. It is more solitary than the others. We must also separate from the Thrushes: Cinclus, Beclist. Or the Water-Thrushes, winch have a compressed, straight beak, withman- 134 AYES dibles of an equal height, nearly linear, and becoming sharp near the point; the upper one hardly arcuated. Africa, and the countries bordering on the Indian Ocean, produce a genus of birds neighbours of the Thrushes, which I call PlIILEDON. Their beak is compressed, slightly arcuated throughout its length, and emarginate near the point; nostrils large, and covered by a cartilaginous scale; their tongue terminated by a pencil of hairs. The birds of this genus are closely allied to those of the preceding one. Their beak is nearly that of a Thrush; their nostrils are round and smooth. Their distinguishing mark consists in broad strips of naked skin on each side of the occiput, and a bald spot on the cheek. Eulabes, Cuv. Gracula, Cuv. Is another genus allied to the Thrushes. The species inhabit Africa and the countries bordering on the Indian Ocean. Their beak is compressed, very little arcuated, and slightly emarginate; its commissure forms an angle like that of the Starling. They have the habits of Starlings, and like them, pur- sue insects in flocks. Pyrriiocorax, Cuv. The compressed, arcuated, and sloped beak of the Thrushes; but their nos- trils are covered with feathers, as in the Crows, to which they were for a long time united. There is one in Europe. I can find no character sufficient to warrant removing from the Thrushes Oriolus, Lin. Or the Orioles, whose beak, similar to that of the Thrushes, is merely a little stronger; the feet a little shorter, and the wings a little longer in proportion. The same strong beak as the Orioles; the nostrils round, without scales or surrounding membrane; a great part of the head naked. Some of them have prominences on the beak. In these the tongue is pencillated as in Pliiledon. Gymnops, Cuv. Mjenura, Shaw. These Birds evidently belong to the order of the Passerine, and approach the Thrushes in their beak, which is triangular at base, elongated, slightly compressed, and emarginate near the point. They are distinguished by the great tail of the male, wliich is very remarkable for the three sorts of feath- PASSERINE. 135 ers which compose it, viz. the twelve common ones with very fine and widely separated barbs; two more in the middle only one side of which is furnished with thickly set barbs, and two external ones curved into the figure of an S, or like the arms of a lyre, whose internal barbs, large and thickly set, form a kind of broad riband, while those that are external are very short, becom- ing longer only near the tip. The female has only twelve ordinary quills. The singular species, Msenura lyra, inhabits the rocky districts of New Holland; its size is somewhat less than that of the Pheasant. Motacilla, Lin. The Warblers form an excessively numerous family, known by the beak, which is straight, slender, and similar to a bodkin. When slightly depress- ed at base, it approaches that of the Flycatchers; when compressed, and its point is curved a litde, it leads to the straight beaked Shrikes. A straight beak, slender throughout, slightly compressed before; the up- per mandible a little curved near the point. The most celebrated of this subgenus is Mot. luscinia, L. (The Nightingale.) A reddish brown above; whitish grey beneath; the tail somewhat redder. Every one knows this songster of the night, and the varied melody with which it fills the woods. It builds on trees, and does not begin to sing until the young ones are hatched. The male, then, as well as the female, is occupied in providing them with food. The other sub genera are Saxicola (the Wheat-ear); Sylvia (our Blue-Bird); Regulus; Troglodytes (Wrens); Motacilla (the Wag-tails); Jhnthus (Meadow- Larks). We will terminate this family of the Dentirostres with some birds distinguished from all preceding ones by their two external toes, which are united at base for about a third of their length, a circum- stance whch approximates them to the family of the Syndactyli. Cukbuca, Bechst. The Manakins have a compressed beak, higher than it is broad, and emar- ginated; large nasal fossae. Their feet and tail are short; the general propor- tions of their form have long caused them to be considered as very similar to the Titmouse. At their head, but in a separate group, should be placed Pipra, Lin. Rupicola, Briss. The Rock Manakins, or Cocks of the Rock, which are large birds, and have a double vertical crest on the head, formed of feathers arranged like a fan. The adult males of the two American species, Fipra rupicola, and Pip. peruviana, are of a most splendid orange colour; the young of an obscure brown. They live on fruit, scratch the ground like the common Hen, and 136 AYES. construct their nests with pieces of dry wood, in the depths of rocky caverns. The female lays two eggs. Eurylaimus, Horsf. Toes similar to those of the Manakins and the'Rock Manakins; but the beak, as strong as that of the Tyrants, is enormously broad and depressed, the base even surpassing the width of the forehead. The point is a little hooked, and slightly emarginate on each side; the ridge is blunt. These birds inhabit the archipelago of India. The ground of their plu- mage is black, variegated with patches of bright colours, and they have something of the air of the Bucco, a genus of a very different order. They live near water, and feed on insects. FAMILY II. FISSIROSTRES. The Fissirostres form a family, numerically small, but very distinct from all others in the beak, which is short, broad, horizontally flat- tened, slightly hooked, unemarginate, and with an extended commiss- ure, so that the opening of the mouth is very large, which enables them to swallow with ease the Insects they capture while on the wing. They are most nearly allied to the Fly-catchers, and to the Proc- niae in particular, whose beak only differs from theirs in being emar- ginate. They are separated, like the Birds of Prey, into two divisions, the Diurnal and the Nocturnal. The genus Hirundo, Lin. Or the Swallows, comprehends the diurnal species, all of which are remark- able for their dense plumage, extreme length of wing, and velocity of flight. Among them we distinguish Of all Birds, these have the longest wings in proportion to their size, and the greatest powers of flight. Their tail is forked; their extremely short feet have this very peculiar character: the thumb is directed forward almost as much as the other toes, and the middle and external ones consist each of tliree phalanges like the internal one. The shortness of their feet, together with the length of their wings, prevents them, when on the ground, from rising, and consequently they pass their lives, if I may so express it, in the air, pursuing, in flocks and with loud cries, their Insect prey through the highest regions of the atmosphere. They nestle in holes of walls, or fissures in rocks, and climb along the smoothest surfaces with great rapidity. CrrsELts, llliger. 137 PASSERINSE. The Swallows proper have the toes and sternum disposed like those of the Passerinse generally. In some of them the feet are invested with feathers down to the nails; the thumb still exhibits a disposition to incline forward; the tail is forked, and of a moderate size. There are some in which the tail is nearly square. Others have naked toes. Hibcndo, Cuv. Caprimulgus, Lin.(l) The Goatsuckers have the same light, soft plumage, shaded with grey and brown, that characterizes the nocturnal birds. Their eyes are large; the commissure of the beak extending still higher up than that of the Swal- low, and furnished with stiff mustachios, is capable of engulphing the largest insects, which are retained there by a glutinous saliva; the nostrils, formed like small tubes, are at its base. Their wings are long; their feet short, with feathered tarsi, and their toes united at base by a short membrane. Goatsuckers live solitarily, and never venture abroad, except at twilight, and in the night during fine weather. They hunt Phalensc and other nocturnal insects, and lay a small number of eggs on the bare ground, without taking any pains in the construction of a nest. The rushing of the air into their immense mouth, while on the wing, produces a very peculiar humming sound. America produces several of these birds with a round or square tail, one of which, C. vociferus (The Whip-Poor-Will), is celebrated on account of its loud and peculiar cries in the spring of the year. FAMILY III. CONIROSTRES. The Conirostres comprehend genera with a strong beak, more or less conical, and unemarginate; the stronger and thicker their beak, the more exclusively is grain their food. The first genus to be distinguished is, The Larks are known by the nail of their thumb, which is straight, strong, and much longer than the others. They are granivorous birds, and pul- verators. They build on the ground, and generally keep there. The beak of the greater number is straight, moderately stout and pointed. Alauda, Lin. (1) Caprimulgus, Goatsucker, JEgothelas, names which derive their origin from the whimsical idea, entertained by the people, of their sucking Goats and even Cows. 138 AVES Parus, Lin. The Titmouse has a slender, short, conical and straight beak, furnished with little hairs at the base, and the nostrils concealed among the feathers. It is a genus of very active little birds, which are continually flitting and climb- ing from branch to branch, suspending themselves therefrom in all sorts of positions, rending apart the seeds on which they feed, devouring insects wherever they see them, and not sparing even small birds when they hap- pen to find them sick and are able to put an end to them. They lay up stores of seeds, build in the holes of old trees, and lay more eggs than any of the Passerinse. Emberiza, Lin. The Buntings have a very distinct character in their conical, short and straight beak, the upper mandible of which is narrow, sinks into the lower, and has a projecting, hard tubercle on the palate. They are granivorous, and unsuspicious birds, which run into every snare that is laid for them. E. hortulana, L. (The Ortolan.) The back olive-brown; throat yellow- ish; the inner side of the two external feathers of the tail white. Builds in hedges; is very fat and common in autumn. Fringilla, Lin. The Sparrows have a conical beak, more or less thick at base; but its com- missure is not angular. They feed generally on grain, and are for the most part voracious and noxious. We subdivide them into Ploceus (The Weavers), Pyrgita (Sparrows), Fringilla (Finches), Cardu- elis (Goldfinches), Linaria (Linnets) to which belongs the Canary Bird, Vidua (Widows), Coccothraustes (Grossbeaks), Pitylus, and Pyrrhula or (Bullfinches). Loxia, Bliss. The Crossbills have a compressed beak, and the two mandibles so strongly curved, that their points cross each other, sometimes on one side sometimes on the other. Tliis singular beak enables them to tear out the seeds from under the scales of the pine-cones. The European species is very common wherever there are evergreen trees; it is, Loxia curvirostra, L. (The Crossbill.) The plumage of the young male is of a vivid red, with brown wings; that of the adult, and of the female, is greenish above, yellowish beneath. We cannot remove from the Bullfinches and the Crossbills CoRYTHUS, CuV. The point of whose completely arched beak curves over the lower mandible. The most known species is Loxia enucleator, L. The Pine Grosbeak inhabits the north of both con- tinents, and lives in the same way as the Crossbill. It is red, or reddish, the feathers of the tail and wings black edged with white. PASSERINE. 139 The Colies also approximate considerably to the preceding birds. Their beak is short, thick, conical, and somewhat compressed, its two mandibles being arcuated, but without extending beyond each other; the quills of their tail are cuneiform, and very long; their thumb, as in Cypselus, is capable of being directed forwards like the other toes; their fine and silky feathers are generally cinereous. They inhabit Africa and India, climb something in the manner of Parrots, live in flocks, build many of their nests on the same bush, and sleep suspended to its branches in crowds, with the head downwards. They feed on fruit. Here also come the Colius, Gm.(l) BurHAGA, Briss. The Beef-Eaters form a small genus in which the beak is of a moderate length, cylindrical at the beginning, and inflated (both mandibles) near the end, which terminates in a blunt point. They use it to compress the skin of cattle in order to force out the larva: of the CEstrus lodged in it, on which they feed. One species only is known, and that, is from Africa; brownish, with a mode- rate sized cuneiform tail; as large as a Thrush. It is the Buphaga africana. Cassicus, Cuv. A large and exactly conical beak, thick at base, and very sharp at the point; small round nostrils, pierced on the sides; the commissure of the mandibles forms a broken line, or is angular like that of the Starlings. They are American birds, whose manners are similar to those of the last mentioned ones, living like them in flocks, frequently constructing their nests close together, and sometimes with much art. They feed on grain and Insects, and do great injury to cultivated grounds. They are now divided into Cassicus proper, Icterus, &c. Among the latter we distinguish a species with a somewhat shorter beak, the Icteruspecoris, Tem. (The Cow Bunting.) A violet black; head and neck a brown grey. Lives in flocks among cattle; but the most peculiar trait in its habits is that, like the Cuckoo, it lays its eggs in other bird’s nests. Stuknus, Lin. The Starlings have a beak that is depressed, especially near the point. We can find no sufficient character to enable us to distinguish from the Conirostres with certainty and precision, the different gen- era of the family of the Crows, all of which have a similar internal structure and external organs, only differing in a (generally) (1) Ko\oioi, the Greek name of a small species of Crow. 140 AYES. greater size, which sometimes enables them to hunt small birds: their strong beak is most commonly compressed on the sides. These genera are three in number, the Crows, Birds of Paradise, and the Rollers. The Crows have a strong beak, more or less laterally flattened, nostrils covered with stiff feathers, which incline forwards. They are very cunning, their sense of smell is extremely acute, and they have, generally, a habit of purloining articles totally useless to them, such as pieces of money, &c., and even of hiding them. We more particularly call Crows or Ravens, the large species whose beaks are the strongest in proportion, and in which the ridge of the upper mandible is the most arcuated. Their tail is either round or square. C. corax, L. (The Raven.) Is the largest of the Passerine which inhabit Europe. Its size is equal to that of the Cock. Its plumage is entirely black, the tail is rounded, and the back of the upper mandible arcuated near the point. It is a more solitary bird than the other species, flies well and high, scents carrion at the distance of a league, and feeds also on fruit and small animals. It sometimes carries off poultry, builds on the tops of high trees or rocky cliffs, is easily tamed, and may be taught to speak tolerably well. It appears to be found in every part of the globe. C. corone, L. (The Crow.) A fourth smaller than the Raven; the tail more square, and the beak less arcuated above. C. frugilegus, L. (The Rook.) Still smaller than the preceding, with a straighter and more pointed beak. The circumference of the base of the latter, except when very young, is divested of feathers, which is probably occasioned by its habit of thrusting it into the ground in search of food. The Jackdaw is also a Corvus. Corvus, Lin. Pica, Cuv. The upper mandible is more arcuated than the other, and the tail long and cuneiform. Corvus pica, L. (The Magpie of Europe.) A beautiful bird, of a silky black colour, with purple, blue, and gold reflections; the belly is white, and there is a large spot of the same colour on the wing. Its eternal chattering has rendered it notorious. The two mandibles of the Jays are but little elongated, terminating in a sudden, and nearly equal curve; when the tail is cuneiform, it is not very long, and the loose and slender feathers of the forehead stand more or less erect when the bird is angry. Garrulus, Cuv. PASSERINE. 141 The Nutcrackers have the two mandibles straight, equally pointed, and without any curve. There is only one species known. Corvus caryocatades, L. (The Common Nutcracker.) Brown; the whole body spotted with white. It builds in the hollows of trees, in dense moun- tain forests, climbs trees and perforates their bark like the Woodpeckers, feeds on all kinds of fruit, insects, and small birds. Caryocatactes, Cuv. Coracias, Lin. The Rollers have a strong beak, compressed near the point, which is a little hooked. The nostrils are oblong, placed at the edge of the feathers, but without being covered by them; the feet short and stout. They belong to the eastern continent, and are like the Jays in their habits andin the loose feathers on the forehead. Their colours are vivid, but rarely harmonious. Paradise a, Lin. The Birds of Paradise, like the Crows, have a strong, straight, compressed beak, without any emarginations, and with covered nostrils; but the influ- ence of the climate they inhabit, an influence extended to birds of several other genera, gives a velvet tissue to the feathers which cover these nostrils, and frequently a metallic lustre, at the same time that it singularly developes those which cover several parts of the body. They are natives of New Guinea and of the adjoining islands, are said to live on fruits, and to be par- ticularly fond of aromatics. The feathers on the flanks of some of them are silky, and singularly ex- tended into bunches longer than the body, which give such a hold to the wind that they are very often swept away by it. There are also two bearded filaments adhering to the rump, which are as long as, and even longer than the feathers on the flanks. P. apoda, L. Size of a Thrush, maronne; top of the head and neck yellow; circumference of the beak and throat of an emerald green. It is the male of this species which is ornamented with those long bundles of yellowish feathers employed by the ladies as plumes. FAMILY IY. TENUIROSTRES. This family comprehends the remaining birds of the first division; those in which the beak is slender, elongated, sometimes straight, and sometimes more or less arcuated, and without any emargination. They are to the Conirostres what the Motacillae are to the other Dentirostres. 142 AYES. The Nuthatches have a straight, prismatic, pointed beak, compressed near the point, which they employ like the Woodpeckers to perforate the bark of trees, and in withdrawing the larvae contained in it; but their tongue is not extensible, and although they climb in every direction, they have but one toe behind, which, it is true, is a strong one. The tail is of no use in supporting them, as is the case with the Woodpeckers and True Creepers. Sitta, Lin. Certiiia, Lin. Or the Creepers, have an arcuated beak, but that is the only common char- acter they possess. The True Creepers, so called from their habit of climbing trees like Woodpeckers, in doing which they make use of their tail as a prop or supporter, are known by the quills of the tail, which are worn, and terminate in a stiff point, like those of the same birds. They are divided into various subgenera. Trochilus, Lin. The Hummingbirds, so celebrated for the metallic lustre of their plumage, and chiefly for those plates, brilliant as precious stones, which are formed by scaly feathers of a peculiar structure, on their throat or head, have a long slender beak, enclosing a tongue, which they can protrude at will, like that of the Woodpeckers (and by the same mechanism), which is split almost to its base, forming two filaments, employed, as is asserted, in taking up the nectar from flowers. They also, however, feed on small insects, for we have found their stomach filled with them. Their very small feet, broad tail, excessively long and narrow wings, short humerus and large sternum, which is without emargination, all contribute to form a system adapted for great power of flight; similar to that of the Swallows. The narrowness of their wing is caused by the rapid abbreviation of its quills. By these means, they balance themselves in air with nearly as much facility as certain Flies, and it is thus that they hum about flowers and fly with more proportionate rapidity than any other bird. They live singly, defend their nests with courage, and fight desperately with each other. Upupa, Lin. The Hoopoes have an ornament on the head formed of a double range of long feathers, which they can erect at will. The subgenera are Promerops and Epimachus. The second and smallest division of the Passerinas comprehends those in which the external toe, which is nearly as long as the mid- dle one, is united to it as far as the penultimate articulation. We make but a single group of them, the PASSERINE. 143 SYNDACTYLY, Which has long been divided into several genera. Merops, Lin. The Bee-eaters have an elongated beak, triangular at base, slightly arcuated and terminating in a sharp point. There is a double emargination on each side of the hind part of the sternum. Their long, pointed wings, and short feet render their flight similar to that of Swallows. They pursue insects in great flocks, especially bees, wasps, &c. and it is remarkable, that they are never stung by them. The Motmots have their feet and carriage, but differ in the beak which is stronger, the edges of both mahdibles being serrated, and in their tongue, which, like that of the Toucans, is barbed. They are beautiful birds, as large as the Magpie; the plumage on the head loose as in the Jays, and a long cuneiform tail; the stems of the two middle quills being stripped of their webs for a short distance near the extremities, gives to the whole a singular appearance. They fly badly, are solitary, build in holes, feed on insects, and even on small birds. Prionites, Illig. Alcedo, Lin. The Kingfishers have shorter feet than the Bee-eaters, and the beak much longer, which is straight, angular, and pointed; the tongue and tail are very short. They feed on small fish which they capture by precipitating them- selves into the water from some branch where they have remained perched, watching for their prey. They nestle like Bee-eaters in holes on the banks of streams, and are found in both continents. The Todies are small birds of America resembling the Kingfishers in their general form as well as in their feet and elongated beak, but the latter is horizontally flattened, and obtuse at the point. The tarsus also is higher, and the tail not so short. They feed on flies and build on the ground. Todus, Lin. The Homhills are large birds of Africa and India, whose enormous dentated beak is studded with excrescences which sometimes equal in size the beak itself, and which are always of considerable extent above. This renders them very remarkable, and allies them to the Toucans; while, at the same time, their carnage and habits approximate them to the Crows, and their feet to the Bee-eaters and the Kingfishers. The shape of these excrescen- ces on the beak varies with age, and in the very young bird they are not even visible; the interior is generally cellular. They live on all sorts of food, eat soft fruits, hunt mice, small birds, reptiles, and do not even despise carrion. Buceros, Lin. 144 AVES. ORDER III. SCANSORIJE. This order is composed of those birds whose external toe is di- rected backwards like the thumb, by which conformation they are the better enabled to support the weight of their bodies, and of which certain genera take advantage in clinging to and climbing upon trees. It is from this that they have received the common name of Climbing Birds, which in strictness is not applicable to all of them, as there are many true Climbers which by the disposition of their toes cannot belong to this order, instances of which we have already seen in the Creeper and Nuthatch. The Scansori® usually nestle in the hollows of old trees; their powers of flight are middling; their food, like that of the Passerinsc, consists of insects or fruit, in proportion as their beak is more or less stout; some of them, the Woodpeckers for instance, have pecu- liar means for obtaining it. The Jacamars are closely allied to the Kingfishers by their elongated sharp- pointed beak, the upper ridge of which is angular, and by their short feet, the anterior toes of which are almost wholly united; these toes, however, are not precisely the same as those of the Kingfishers; their plumage more- over is not so smooth, and always has a metallic lustre. They are solitary birds, that live in wet forests, feed on insects, and build on low branches. The American species have a longer and perfectly straight beak. Galbula, Briss. The Woodpeckers are well characterized by their long, straight, angular beak, the end of which is compressed into a wedge, and fitted for split- ing the bark of trees; by their slender tongue, armed nearthe tip with spines that curve backwards, which by the action of the elastic horns of the hyoid bone can be thrust far out of the beak, and by their tail, composed of ten quills with stiff and elastic stems, which acts as a prop in supporting them wlfile they are climbing. They are Climbers par excellence: they wander over trees in every direction, striking the bark with their beaks, and insin- uating them long tongue into its cracks and crevices to obtain the larvae of insects, on which they feed. Fearful and wary, they pass most of their time in a solitary manner, but at a certain season they may frequently be heard Picus, Lin. 145 SCANSORI^. tapping loudly and rapidly on a dry branch. They build once a year in holes of trees, and each sex alternately broods upon the eggs until they are hatched. The Wrynecks have the protractile tongue of the Woodpeckers, which is also moved by the same kind of mechanism, but the spines are wanting; their straight and pointed beak is nearly round, and without any angles; the quills of their tail are like those of Birds in general. Their mode of life is that of the Woodpeckers, except that they climb but seldom. Yunx, Lin. The Cuckoos have a middling, well cleft, compressed, and slightly arcuated beak; the tail long. They live on Insects, and are Birds of passage. They are celebrated for the singular habit of laying their eggs in the nests of other insectivorous Birds, and, what is not less extraordinary, these latter, which are often a considerably smaller species, take as much care of the young Cuckoo as of their own true offspring, and that too, even when its introduction has been preceded, which often happens, by the destruction of their eggs. The rationale of this phenomenon is unknown. Cuculus, Lin. Malcoha, Vaill. A very stout beak, round at base, and arcuated near the point, with a large naked space about the eyes. The nostrils of some are round, and placed near the base of the beak, in others they are narrow and situated near its edge. They are natives of Ceylon; and, as it is said, live chiefly on fruit. Scythrops, Lath. The beak still longer and stouter than that of Malcoha, and grooved on each side with two shallow longitudinal furrows; circumference of the eyes naked; nostrils round. These birds approach the Toucans in their beak; but their simple tongue, which is not ciliated, separates them. One species only is known, which is as large as a Crow, whitish, with a grey mantle; found in New Holland. The Barbets have a thick conical beak, inflated on the sides of its base, and furnished with five bundles of stiff hairs directed forwards; one behind the nostril, one on each side of the base of the lower jaw, and the fifth under its symphysis. The wings are short, and their proportions are heavy, as is also their flight. They live on Insects, and will attack small Birds; they also eat fruit. They build in the hollows of trees. Bucco, Lin. Trogon, Lin. The Couroucoui, along with the hairy fasciculi of the Barbets, have a short 146 AVES beak, which is more broad than high, and curved from the base, its upper ridge arcuated and blunt. Their small feet, feathered nearly down to the toes, long broad tail, fine light and dense plumage, give them quite a dif- ferent air. Some part of their plumage usually has a metallic lustre, the remainder being coloured more or less vividly. They build in hollow trees, live on insects, and remain in a solitary and quiet mood on low branches in the centre of marshy forests, never being seen on the wing ex- cept during the morning and evening. They are found in both continents. Ceotopiiaga, Lin. The JLni are known by their beak, which is thick, compressed, arcuated, entire, elevated, and surmounted with a vertical and trenchant crest. Two species are known, Crotophaga major and Croto ani, both from the hot and low districts of America. Their tarsi are strong and elevated, the tail long and rounded, and the plumage black. These Birds feed on Insects and grain, and live in flocks, several couples laying their eggs, and even brooding over them in the same nest, which, together with the branches that support it, is of a size proportioned to the number of couples that have constructed it. They are easily tamed, and may be taught to speak, but their flesh has a disagreeable odour. Ramphastos, Lin. The Toucans are easily distinguished from all other Birds by their enormous beak, which is almost as thick and as long as their body, light and cellular in- ternally, arcuated near the end, and irregularly indented along its edges; and by their long, narrow, and ciliated tongue. They are confined to the hat climates of America, where they live in small flocks, feeding on fruit and Insects; they also devour other Birds’ eggs, and their callow offspring. The structure of their beak compels them to swallow their food without mastica- tion. When they have seized it, they toss it into the air to swallow it with more facility. Psittacus, Lin. The Parrots have a stout, hard, solid beak, rounded on'all sides and en- veloped at base by a membrane in which the nostrils are pierced, and a thick fleshy and rounded tongue; two circumstances which give them the great- est facility in imitating the human voice. Their inferior larynx, which is complicated and furnished on each side with its three muscles, also contri- butes to this facility. They feed on all sorts of fruit, climb among the branches of trees by the aid of their beak and claws, and build in hollow trees. Their voice is naturally harsh and disagreeable, and they are almost universally ornamented with the brightest colours, hardly any of them being found beyond the torrid zone. They exist however in both continents, the species of course differing in each. Every large island even has its pecu- liar species, the short wings of these birds not allowing them to cross any great extent of water. The Parrots, consequently, are very numerous: they SCANSORIHL. 147 are subdivided by the forms of their tails and some other characters. To these subdivisions belong the Macaws, Paroquets, Cockatoos, Stc. There are two African birds, closely allied to each other, and generally placed among the Scansoriae, which appear to me have some analogy with the Gallinaceie, and especially with the Hoccos. They have the tail and wings of the Hoccos, and like them perch on trees; the beak is short, and the upper mandible gibbous; there is a short membrane between the fore-toes, but the external one, it is true, is often directed backwards like that of the Ululae. Their nostrils, also, are simply pierced in the horn of the beak, the edges of the mandibles are dentated, and the sternum (at least that of the Touraco) has not those large emarginations, so common in the Gal- linacese. There are two genera of these birds: the first is, Or the Touracos, in which the beak does not mount on the forehead, and the head is furnished with an erectile tuft. The most common species, Cuculuspersa, L., is found in the vicinity of the Cape of Good Hope. It is a beautiful green, with part of the quills of the wings crimson. It builds in hollow trees, and feeds on fruit. The second is the Cokytiiaix, Illig. Musophaga, Iscrt. Or the Flaintain-eaters, so called because their principal food is the fruit of the banana. They are characterised by the base of the beak forming a disk, which partly covers the forehead. The species known is JVI. violacea, Vicill. Circumference of the eyes naked and red; violet- coloured plumage; occiput and primary quills of the wings, crimson; a white line passes below the naked space round the eye. Inhabits Guinea and Senegal. ORDER IV G ALLIN ACEiE.—Gallinje, Lin. These birds are so called from their affinity with the Domestic Cock, and like it, generally have the upper mandible arched, the nostrils pierced in a broad membranous space at the base of the beak and covered by a cartilaginous scale; a heavy carriage, short wings, and the bony sternum diminished by two emarginations, so wide and 148 AVES deep that they occupy nearly the whole sides, its crest being trunca- ted obliquely forwards so that the sharp point of the fourchette is only joined to it by a ligament, circumstances which, by greatly im- pairing the strength of the pectoral muscles, render it difficult for them to fly. Their tail generally consists of fourteen quills, and sometimes of eighteen. With the exception of the IIocco they all lay their eggs on the ground, on a few carelessly arranged blades of straw or grass. This order is chiefly composed of one very natural family, remark- able for having furnished us with most of our domestic poultry, and abundance of excellent game. Alector, Merr.(l) The Hoccos are large Gallinacese of America, which resemble Turkeys, with a broad, rounded tail, formed of large and stiff quills. They live in the woods, feed on buds and fruit, perch and build on trees, are very social, and easily domesticated. The remaining genera belonging to this division are Ourax (Stone Bird), Penelope (The Guans or Yacous), Ortalida, and Opislhocomus. Pavo, Lin. The Peacocks are characterized by an aigrette or crest on the head, and by the coveils of the tail of the male being larger than its quills, and capable of being erected so as to form a circle. The shining, lax and silky barbs of these feathers, and the ocellated spots that decorate their extremities, are well known in the P. cristatus, L. (The Common Peacock.) This superb bird, originally from the north of India, was introduced into Europe by Alexander. Its magnificent plumage is even surpassed in brilliancy by that of the wild ones. Meleagris, Lin.(2) The Turkeys have their head and upper part of the neck invested with a plumeless and papillated skin; an appendage under the throat, and another conical one on the forehead, which, in the male, when excited by passion, becomes so inflated and long, as to hang over the point of the beak. From the lower part of the neck of the adult male hangs a tuft or tassel of stiff hairs; the coverts of the tail, shorter and stiffer than in the Peacock, can be erected and displayed in the same way. The tarsi of the male are armed with weak spurs. But one species was known for a long time. Meleagris gallo-pavo, L. (The Common Turkey.) Introduced into Eu- (1) Alector is the Greek name of the Cock. (2) Meeeagris is the Greek name of the Guinea-Hen, erroneously ap- plied by Linnaeus to the Turkey. GALLINACEiE. 149 rope from America in the sixteenth century. The size of this noble bird, and the goodness of its flesh, have rendered it extremely common. The Wild Turkey of America is of a greenish brown, with a copper gloss. A second species, however, M. ocellata, Cuv. has lately been described, al- most equal to the Peacock in the brilliancy of its colours, and particularly in the sapphire coloured spots surrounded with circles of gold and ruby, which decorate the tail. It was captured in the bay of Honduras. The Guinea-fowls, or Pintados, have a naked head, fleshy wattles at the bottom of the cheeks, a short tail, and the cranium generally surmounted with a callous crest. N. meleagris, L. (The Common Guinea-Hen), originally from Africa, has a slate-coloured plumage, every where sprinkled with small, white, round spots. In a wild state they live in large flocks, and prefer the vici- nity of marshes. There are two species. The great genus Numida, Lin. Or that of the Pheasants, is characterized by the cheeks being partly desti- tute of feathers, and covered with a red skin, and by the tectiform tail, in which the feathers are variously disposed. This great genus is now divided into various subgenera, such as Gallus (our common Cock and Hen) of which several wild species are known, Pheasants properly so called (Common Pheasant of Europe, Gold and Silver Pheasants of China, &c.), Tragopan, &c. Piiasianus, Lin. This also is a great genus, characterized by a naked and most generally red band, which occupies the place of the eye-brow. It is divided into subge- nera as follows. Tetrao, Lin. Tetiiao, Lath. The feet of Grous are covered with feathers, and are without spurs. Those to which this name is more particularly applied have a round or forked tail and naked toes. In some the feathers on each side of the neck of the males are turned up like a mantlet, or two scrolls: their habits have an affinity with those of the Turkey. Such are Tetr. umbellus and togatus, Gm.; called Partridge in New England, and Pheasant in Pennsylvania. Found in the mountain forests. Tetr. cupido, Gm. (The Pinnated Grous.) Variegated with brown and fawn colour; tail brown; tarsi feathered down to the toes; the feathers on the bottom of the male’s neck turn up into two pointed scrolls, beneath which is a naked skin, which he inflates like a bladder; his voice sounds like a trumpet. Found on extensive plains, and is such delicious food that laws have been passed to preserve them. The name of 150 AVES Laqotus, Or Ptarmigan, is more particularly applied to those species which have a round or square tail and whose toes are feathered as well as the legs. Tetr. albus, Gm., called of Hudson’s Bay. (The White Ptarmigan.) From the whole North; is larger, and its summer plumage more red; its belly remains white. Perdix, Briss. Partridges have the tarsi naked like the toes. Among them the Is distinguished by a longer and stronger beak; a larger tail, and, generally speaking, by stout spurs. Francoeinus, Tem. Have a somewhat weaker beak; the spurs of the males are cither short, or mere simple tubercles; they are deficient in the female. Common Partridges Coturnix. Quails are smaller than Partridges, with a slenderer beak and shorter tail; no red eye-brow nor spurs. The Partridges and Quails of America Have a stouter, shorter, and more convex beak; the tail is somewhat larger. They perch on bushes, and, when disturbed, even on trees. Se- veral of them migrate like the Quails of Europe. There are some other subgenera. Tinamus, Lath. Or the Tinamous is a genus of American birds very remarkable for a slen- der and long neck, (although their tarsi are short) covered with feathers, the tips of whose barbs are slender and slightly curled, which gives a very pe- culiar air to that part of their plumage. The beak is long, slender, and blunt at the end; somewhat arched, with a little groove on each side; the nostrils aro pierced in the middle of each side, and penetrate obliquely backwards. Their wings are short, and they have scarcely any tail. The membrane between the base of the toes is very short. Their thumb, re- duced to a spur, cannot reach the ground. The circumference of the eye is partly naked. They either perch on low branches of trees, or hide among tall grass; they feed on fruits and insects, and their flesh is good. Their size varies from that of the Pheasant down to that of the Quail, some of them are even still smaller. The Pigeons may be considered as forming a slight transition from the Gallinacex to the Passerine. Like the former, then- beak is vaulted, the Columba, Lin. GALLINACEiE. 151 nostrils perforated in a broad membranous space, and covered with a carti- laginous scale, which even forms a bulge at the base of the bill; the bony sternum is deeply and doubly emarginated, although somewhat differently; the crop extremely dilated, and the lower larynx furnished with but a single proper muscle; but there is no other membrane between the base of their toes than that which results from the continuity of the edges. Their tail is composed of twelve quills. They fly well, live in a state of monogamy, build on trees or in fissures among rocks, and lay but few eggs at a time, generally two; it is true they lay frequently. The male assists his mate in the business of brooding. They nourish their young by disgorging mace- rated grain into their crop. They form but one genus, which naturalists have attempted to divide into several subgenera, from the greater or less strength of the bill and the proportions of the feet. They are the Columbi-Gallines (the Crowned Pigeon of India, almost as large as a Turkey); Columbaproper (Cushat, Stock Dove, Turtle Dove, Ring Dove, &c.); and Vinago, of which latter there are but few species, and all inhabiting the torrid zone of the eastern continent. ORDER V. GRALLATORIiE.—Grall.e, Lin. The birds of this order derive their name from their habits, and from the conformation which causes them. They are known by the nudity of the lower part of their legs, and most generally by the height of their tarsi; two circumstances which enable them to enter the water to a certain depth without wetting their feathers; to wade through it and seize Fish by means of their neck and bill, the length of which is usually proportioned to that of the legs. Those which are furnished with a strong bill feed on Fish and Reptiles, while such as have a weak one consume Worms and Insects. A very few feed partially on grain, and they alone live at a distance from rivers, &c. The external toe is most commonly united at its base with that of the middle one, by means of a short membrane; sometimes there are two similar membranes, and at others they are entirely wanting and the toes are completely separated; it sometimes also happens, though rarely, that they are bordered all along, or palma- ted to the very end; in fine, the thumb is deficient in several genera; circumstances, all of which have an influence on their mode of life, which is more or less aquatic. Almost all these birds, the Ostriches 152 AVES. and Cassowaries excepted, have long wings, and fly well; during which action they extend they legs backwards, differing in this from all others, which fold them under the belly. In this order we establish five principal families, and some insu- lated genera. FAMILY I. BREVIPENNES. These birds, although similar in general to the other Grallatoriae, differ from them greatly in one point—the shortness of the wings, which renders flight impossible. The beak and regimen give them numerous affinities with the Gallinaceae. It appears as if all the muscular power which is at the command of nature, would be insufficient to move such immense wings as would be required to support their massive bodies in the air. The sternum is a simple buckler, and is deficient in that ridge which is found in all other birds. The pectoral muscles are thin and delicate, but the posterior extremities regain what the wings have lost—the muscles of the thighs, and of the legs in particular, being enormously thick and stout. The thumb is always deficient. They form two genera. STRUTnio, Lin. The Ostriches have wings furnished with loose and flexible feathers, but still sufficiently long to increase their speed in running. Every one knows the elegance of these slender-stemmed plumes, the barbs of which, although furnished with little hooks, always remain separate, contrary to what takes place in most other birds. Their beak is horizontally depressed, of a mod- erate length, and blunt at the end; their tongue short, and rounded like a crescent; their eye large, and the lid fringed with lashes; their legs and tarsi very long. But two species are known, each of which might form a separate genus. Struthio camelus, L. (The Ostrich of the Eastern Continent.) But two toes, the external of which is one half shorter than its fellow, and has no nail. This bird, so highly celebrated from the earliest ages, abounds in the sandy deserts of Arabia and Africa. It attains the height of six or eight feet, lives in great troops, lays eggs, each weighing nearly three pounds, which, in very hot climates, it is contented with exposing in the sand to the warmth of the sun, but over which, out of the tropics, it broods with great care, defending them courageously every where. The Ostrich feeds on grass, 153 GRALLATORIiE. grain, &c., and so obtuse is its sense of taste that it swallows pebbles, pieces of iron, copper, &c. When pursued it dashes stones behind it with great violence. No animal can overtake it in the race. Struth. rhea, L. (The American Ostrich.) Is about one half smaller, with more thinly furnished feathers, of a uniform grey colour; and particularly distinguished by its three toes, all having nails. Its plumage is greyish, browner on the back: a black line along the back of the neck in the male. It is as common in the southern parts of South America, as the preceding one is in Africa. When taken young, it is easily tamed. Several females, it is said, lay in the same nest, or rather the same hole, yellowish eggs, which are hatched by the male. It is only eaten when very young. Casuarius, Briss. The Cassowaries have wings still shorter than those of the Ostrich, and totally useless, even in running. There are three toes to all the feet, each furnished with a nail? the barbs of their feathers are so poorly provided with barbulse, that at a distance they resemble pendent hairs. Two species are known, each of which might also constitute a genus. Casuarius vulgaris, L. (The Cassowary. )The beak laterally compressed; head surmounted by a bony prominence, covered with a horny substance; skin of the head and top of the neck naked, of an azure-blue and a fiery red colour, with pendent caruncles like those of the Turkey; some stiff stems in the wings, without barbs, which the bird uses as weapons in combat; nail of the internal toe much the strongest. It is the largest of all birds, next to the Ostrich, and differs considerably from it in its anatomy. It feeds on fruit and eggs, but not grain. The female lays a small number of green eggs, which like the Ostrich she abandons to the solar heat. Found in different islands of the Archipelago of India. Cas. Novas-Hollandisc, Lath. (The Cassowary of New Holland.) A de- pressed beak; no helmet on the head; a little naked skin about the ear; plumage brown and more of it; more barbs to the feathers; no caruncles, or spurs on the wing; nails of the toes about equal. Its flesh resembles beef. Its speed is greater than that of the swiftest greyhound. The young ones are striped with brown and black. FAMILY II. PRESSIROSTRES. This family comprises genera with long legs, without a thumb, or in which the thumb is too short to reach the ground. The bill is moderate, but strong enough to penetrate the earth in search of worms; hence we find those species in which it is weakest frequent- ing meadows and newly ploughed grounds to obtain that sort of food 154 AYES. with more facility. Such as have stronger beaks, also feed on herbs, grain, &c. Otis, Lin. The Bustards, in addition to the massive carriage of the Gallinacex, have a long neck and legs, and moderate beak; its superior mandible being slightly arcuated and arched, which, as well as the very small membranes between the base of the toes, again recall the idea of the Gallinacex. But the naked- ness of the lower part of their legs, their whole anatomy, and even the fla- vour of their flesh, place them among the Grallatorix; and as they have no thumb, the smaller species approximate closely to the Plovers. Their tarsi are reticulated, and their wings short; they fly but seldom, hardly ever using their wings, except to assist themselves in running. They feed in- differently on grain and herbs, worms and insects. 0. tarda, L. (The Great Bustard.) Back of a bright fawn colour, crossed with numerous black streaks, the remainder greyish. This spe- cies builds on the ground among the grain. Ciiaradrius, Lin. The Plovers have no thumb; the beak is moderate, compressed, and enlarged at the point. They may be divided into two subgenera; viz. (Edicitemus, Tem. (The Thick-knee), in which the end of the beak is inflated above as well as be- neath, and the fossae of the nostrils only extend half its length: and Ciiaha- nmus, Cuv. The beak of the True Plovers is only inflated above?and has two-thirds of its length occupied by the nasal fossae, which render it weaker. They live in large flocks, and frequent low grounds, where they strike the earth with their feet, in order to set in motion the worms on which they feed. One is Char, pluvialis, L. (The Golden Plover.) Blackish; the edges of its feathers dotted with yellow; white belly. It is the most common of all, and is found throughout the whole globe. The Lapwings have the same kind of beak as the Plovers, and are only dis- tinguished from them by the presence of a thumb; but it is so small that it cannot reach the ground. Vanellus, Bechst.—Tringa, Lin. Kematopus, Lin.(l) The Oyster-catchers have a somewhat longer beak than the Plovers or the Lapwings; it is straight, pointed, compressed into a wedge, and sufficiently strong to enable them to force open the bivalve shells of the animals on which they feed. They also seek for worms in the earth. Their legs are (1) Blood-coloured feet. GRALLATORLE. 155 of a moderate length, their tarsi reticulated, and their feet divided into three toes. It is impossible to avoid placing near the Plovers and Oyster-catchers, the Whose beak, more slender, but equally conical, is arcuated, has no groove, and is moderately cleft; the wings are shorter, and their legs, which are longer, are terminated by three toes without membranes and without a thumb. As far as we can judge from their exterior, it is here that we can most conveniently place the Cursorius, Lac. Microdactylus, Geoff. —Dicholophus, Illig.( 1) Whose beak is longer and more hooked, the commissure extending under the eye, which gives them something of the physiognomy and disposition of birds of prey, and approximates them somewhat to the Herons. Their extremely long and scutellated legs are terminated by very short toes, slightly palmated at base, and by a thumb which cannot reach the ground. One species only is known, and that is from South America, the Micro, cristatus, Geoff. It is larger than the Heron, and feeds on lizards and in- sects, which it hunts for on high grounds and along the edges of forests. FAMILY III. CULTRIROSTRES. This family is recognized by the thick, long, and strong beak, which is most generally trenchant and pointed, and is almost wholly composed of the birds comprised in the genus Ardea of Linnaeus. In a great number of species, the trachea of the male forms various curves. We subdivide it into three tribes, the Cranes, the true Herons, and the Storks. The first tribe forms but one great genus. The Cranes have a straight beak, but slightly cleft; the membranous fossa of the nostrils, which are large and concave, occupy nearly one half of its length. Their legs are scutellated, and the toes moderate; the external ones but slightly palmate, and the thumb hardly reaching to the ground. Grus, Lin. (1) Microductylus, short-finger. Dicholophus, crest in two rows. 156 AVES. A more or less considerable portion of the head and neck is destitute of fea- thers in nearly all of them. We first find Psophia, Lin., or the Trumpeters, which have a shorter beak than the other species; the head and neck are merely invested with down, and the circumference of the eye is naked. They live in the woods and feed on grain and fruit. The species best known is from South America, and is called the Trum- peter, from its faculty of producing a low, deep sound. It is a very grateful bird, and as susceptible of attachment to man as a dog. It is even said to be so docile as to take the command of the poultry-yard. It flies badly, but runs fast, and builds on the ground at the foot of a tree. Its flesh is eaten. Certain Cranes foreign to Europe, with a shorter beak than is found in those that belong to it, should come next. Such is the Croivned Crane from Africa. The Common Cranes have a beak as long as the head, or longer: to which belongs the common species celebrated for its migrations. Between the Cranes and Herons we must place Jlrd. helias, L. (The Sun-Bird.) It is about the size of a Partridge, and its long slender neck, broad and open tail, and rather short legs give it a very different appearance from that of any other Wader. Its plumage shaded in bands and lines with brown, fawn-colour, red, grey and black, re- calls to our minds the colouring of the most beautiful of the nocturnal Le- pidoptera. It is found on the banks of the rivers in Guiana. The second tribe is more carnivorous, and is known by its stron- ger beak and larger toes: we may place at its head. Cancroma, Lin. The Boat-bill, which would closely approach the Herons in the strength of the beak and in the regimen resulting therefrom, but for the extraor- dinary form of that organ, which we shall find, however, by close examina- tion, to be nothing more than the beak of a Heron or Bittern, very much flattened. In fact, it is very wide from right to left, and is formed like two spoons, the concave sides of which are placed in contact. The mandibles are strong and trenchant, the upper one having a sharp tooth on each side of its point; the nostrils, situated near its base, are continued on in two par- allel grooves to near the point. There are four toes to the feet, long, and almost without membranes, and accordingly we find that these birds perch upon trees on the banks of rivers, whence they precipitate themselves upon the fish, which constitute their customary food. Their gait is slow, and in their attitudes they resemble the Herons. The species known is, Cancr. cochlearia, L. (The Boat-bill.) Size of a hen; whitish; grey or brown back; red belly; a white forehead, followed by a black calotte, which, in the adult male, is changed into a long tuft: inhabits the hot and marshy parts of South America. Then come GRALLATORIjE. 157 Or the Herons, the cleft of whose beak extends to beneath the eyes, a small nasal fossa continuing' on in a groove close to its point. They are also dis- tinguished by the internal edge of the nail of the middle toe, which is trenchant and denticulated. Their legs are scutellated; the thumb and toes tolerably long, the external web considerable, and the eyes placed in a naked skin which extends to the beak. They are melancholy birds, which build and perch on the banks of rivers, where they destroy great numbers of fish. The true Herons have a very slender neck, ornamented below with long pendent feathers. The name of Crab eaters (Crabiers) has been applied to the smallest Herons, with shorter feet. The feathers on the neck of the Bitterns are loose and separated, which increases its apparent size. They are usually spotted or striped. The adult Night-Heron, with the port of the Bitterns, and a beak pro- portionally thicker, has a few slender feathers on the occiput. The third tribe, besides having a thicker and smoother beak than is found in the second, has tolerably strong and almost equal mem- branes between the base of the toes. Ardea, Cuv. ClCONIA, CUV. The Storks have a thick beak, moderately cleft; no fossa or grooves; the nostrils pierced towards the back arid near the base; an extremely short tongue. Their legs are reticulated, and the anterior toes strongly palma- ted at base, particularly the external ones. The light and broad mandibles of their beak, by striking against each other, produce a clash which is al- most the only sound that proceeds from these birds. To this genus belongs the celebrated White Stork, and the Black Stork. We next distinguish the Bare Necked Storks, and then the Pouched Storks so called from an appendage under the throat resembling a sausage. There are two species one from Senegal, the other from India. Mycteria, Lin. The Jabirus, separated from Ardea by Linnseus, are closely allied to the Storks, and much more so than the latter are to the true Herons. Their peculiar character consists in a beak slightly curved upwards near the ex- tremity. Scopus, Briss.(l) The Umbres are only distinguished from the Storks by a compressed beak, (1) Scopus, from Ikotto;, sentinel. 158 AYES. whose trenchant ridge is inflated near the base, and whose nostrils are con- tinued by a groove, which runs parallel with the ridge to its end, the latter being slightly hooked. Only one species is known, Scop, umbretta, which is the size of a Crow, and of an umber colour. The occiput of the male is tufted. Found throughout Africa. The genus Hians, Lacep., is only separable from the Storks by a char- acter of but little consequence, and that of Dromas, Payk., is very similar to it, but the under part of its compressed beak is perforated by oval nos- trils and its edges join closely. In Hians they do not. Tantalus, Lin. The Wood-Pelicans have the feet, nostrils and beak of the Stork; but the back of the beak is rounded, its point curved downwards, and slightly emarginated on each side: a part of their head and sometimes of the neck, is destitute of feathers. T. loculator, L. (The Wood-Pelican of America.) Is the size of a Stork, but more slender; white; quills of the wings and tail black; beak and feet, as well as the naked skin of the head and neck, blackish. It inhabits both Americas, arriving in each country about the rainy season, and frequents muddy waters, where it chiefly hunts for eels. Platalea, Lin. The Spoonbills approximate to the Storks in the whole of their structure; but their bill, whence they derive their name, is long, flat, broad through- out, becoming widened and flattened, particularly at the end, so as to form a spatula-like disk; two shallow grooves, originating at its base, extend al- most to the end, but without being parallel to its edges. The nostrils are oval, and situated at a short distance from the origin of each groove. The expansion of their bill deprives it of all its strength, and renders it fit for nothing but turning up mud, or capturing small fish or aquatic insects. FAMILY IY. LONCxIROSTRES. The family is composed of a multitude of Waders. Their gene- ral character is a long, slender, and feeble bill, the use of which is restricted to searching in the mud for worms and insects; the differ- ent gradations in the form of this bill serve to divide them into genera and subgenera. According to his own principles, Linnaeus should have united most of these birds in the great genus 159 GRALLATORliE. Which we divide as follows, according to the variation in the form of the bill. The Scolopax, Lin. Ibis, Cuv. Separated by us from the Tantalus of Gmelin, because the bill, though arcuated like that of Tantalus, is much more feeble, and has no emargina- tion near its point; the nostrils also, perforated near the back of its base, are severally prolonged in a groove which extends to the end. Ibis religiosa, Cuv. (The Sacred Ibis) is the most celebrated species. It was reared in the temples of ancient Egypt, with a degree of respect bordering on adoration; and, when dead, it was embalmed. This, accord- ing to some, arose from its devouring serpents, which otherwise might have infested the country; others again are of opinion that it took its origin from some relation between its plumage and one of the phases of the moon; while a third class of authors attribute it to the fact that its appearance an- nounced the overflow of the Nile. Found throughout Africa. lb. rubra. (The Red Ibis.) A bird found in all the hot parts of America, remarkable for its bright red colour; the tips of the wing-quills are black. The Curlews have the beak arcuated like that of the Ibis, but it is more slender, and round throughout: the tip of the upper mandible extends be- yond the end of the lower one, and projects a little downwards in front of it. The toes are palmated at base. Numexius, Cuv. The Snipes have a straight beak, the nasal furrows extending to near its point which is a little inflated externally to reach beyond the lower mandi- ble, and on the middle of which there is a simple groove; this point is soft and very sensible, and when dried, after death, assumes a punctured appear- ance. Their feet are not palmated. A peculiar character of these birds consists in their compressed head and large eyes placed very far back, which gives them a singularly stupid air, an indication which is confirmed by their habits. Our common Woodcock (Scol. minor) belongs to this genus, as does also the Red-breasted Snipe, &c. S coxorax, Cuv. ItHYXCHAiA, Cuv. Birds of India and Africa, whose nearly equal mandibles are slightly arcu- ated at the end, and in which the nasal fossa: extend to the tip of the upper one, which has no third groove. Their feet are not palmated. Limosa, Bechst. The Godwits have a straight beak, longer than the Snipes, and sometimes 160 AVES. even slightly arcuated near the top. The nasal groove extends close to the tip, which is blunt and somewhat depressed; no third groove or punctation on its surface. The external toes are palmated at base. Their form is more slender, and their legs are longer than those of Snipes; they frequent salt marshes and the sea-shore. The bill of the Sandpipers is depressed at the end, and the nasal fossae are very long as in the Godwits, but this bill is not usually longer than the head; their slightlybordered toes have no membranes at base, and their thumb can hardly reach the ground; their moderately long legs and short figure give them a heavier carriage than that of the Godwits. They are also much smaller. Caeidris, Cuv. Arenaria, Bechst.—Caeidris, Vig. The Sanderlings resemble the Sandpipers in every point but one, viz. they have no thumb, as is the case with the Plovers. Peeidna, Cuv. The Pelidnx are merely small Sandpipers, with a bill somewhat longer than the head. The edging of their feet is insensible. The Ruffs are true Sandpipers in their bill and carriage; the membrane between their external toes, however, is nearly as extensive as in Totanus, Limosa, &c. One species only is known, the Tringa pugnax, L. It is somewhat smaller than a Snipe, and celebrated for the furious combats that take place among the males. At this period the head is partly covered with red pa- pills, the neck is surrounded with a thick collar of feathers, so variously arranged and coloured, and projecting in such fantastic positions, that no two individuals can be found alike; even before this epoch there is so much diversity in their plumage, that many imaginary species have been described by naturalists. There are some small birds in America resembling the Sandpipers, whose feet are semi-palmated anteriorly (the Hemipaeama, Bonap.). Machetes, Cuv. Distinguished from them by its depressed bill, widenedat the end almost like that of the Spoonbill, the only known species of which, Eurinorhynchus griseus, Nils., is one of the rarest in existence; for only a single individual has been found: it is grey above, white beneath, and hardly as large as a Pelidna. Eurinorhxnchus, Nilson. Phaearopus, Briss. Small birds, whose bill, though flatter than that of the Sandpipers, is GRALLATORIiE. 161 similarly proportioned, and has the same grooves; the toes also are bordered with wide membranes like those of Fulica. Strepsieas. The TAim-stones stand rather low; the bill is short, and the toes are with- out membranes, like those of the true Sandpipers; but this bill is conical, pointed, without any depression, compression, or inflation, and the nasal fossae do not extend to more than half its length. The thumb barely reaches the ground. Their bill, which is stronger and stiffer in proportion than that of the preceding birds, enables them to overturn stones, beneath which they find worms. Totanus, Cuv. The beak of these birds is slender, round, pointed and solid; the nasal fossae do not extend beyond the half of its length, and the upper mandible is slightly arcuated near the end. Their form is light and their legs long; but a small part of their thumb rests on the ground; their external web is well marked. Each of the species is found throughout almost the whole of the globe. Among the species foreign to Europe, we should particularly notice that of North America, with the large beak and semipalmated feet, Scolopax semipalmata, L. which has a short and thick beak, plumage brown-grey above, whitish beneath; brownish spots on the neck and breast; toes well bordered with equal and considerable membranes. Him:antopus,(1) Briss. The bill round, slender and pointed, even more so than that of a Totanus, and the nasal grooves occupy but half its length. The excessive length and tenuity of the legs which are reticulated and destitute of a thumb, and the weakness of their bones, which is so extreme as to render walking pain- ful to them, are what principally distinguish the species of this subgenus, and give rise to their name. This is perhaps the only place for the Recurvirostra, Lin., Or the Jlvosets, although their feet, which are webbed to near the ends of the toes, almost entitle them to a situation among the Palmipedes; but their high tarsi and half naked legs, their long, slender, pointed, smooth, and elastic bill, together with the mode of life resulting from this conformation, equally approximate them to the Snipes. What particularly characterises, and even distinguishes them from all other birds, is the strong upward curve of their beak. Their legs are reticulated, and their thumb much too short to reach the ground. (1) Himantopus, feet like a string, (alluding to their weakness) is the name given to this bird in Pliny. 162 AVES. FAMILY V. MACRODACTYLI. This family is furnished with very long toes, fitted for walking on the grass of marshes, and even for swimming, in those numerous species, especially, in which they are bordered with a membrane. There are no membranes, however, between the bases of their toes, not even between the external ones. The beak, more or less com- pressed on the sides, is lengthened or shortened according to the genus, never, however, becoming as slender or as weak as that of the preceding family. The body of these birds is also singularly compressed, a circumstance which is owing to the narrowness of the sternum; their wings are moderate or short, and their flight feeble They all have a long thumb. They have been divided into two tribes according to the armature or non-armature of their wings; but this character is liable to excep- tions. Jacanas, Briss.—Parra, Lin. The Jacanas are greatly distinguished from the other Grallatoriae by having four very long toes, separated down to their root, the nails of which, that of the thumb in particular, are also extremely long and pointed, from which peculiarity, they have received their vulgar name of Surgeons. The beak is similar to that of the Lapwings in its moderate length, and in the slight inflation of its end. Their wing is armed with a spur. They are noisy and quarrelsome birds, which inhabit marshes of hot climates, where they walk with great facility by means of their long toes. Palamedea, Lin. The Kamichi resemble the Jacanas, but on a very large scale, in the two strong spurs of each of their wings, in their long toes and strong nails, that of the thumb in particular, which is long and straight as in the Larks; but their beak, whose aperture is small, is but slightly compressed, and is not inflated; the upper mandible, also, is somewhat arcuated. Their legs are reticulated. A distinct genus, Chauna, Illig., Has been made of the Parra chavaria,~L.; Cha'i'a of Paraguay, which has no horn on the vertex, and whose occiput is ornamented with a circle of erec- tile feathers. The head and upper part of the neck are only covered with down, and it has a black collar. It chiefly feeds on aquatic plants; and the GRALLATORLE. 163 Indians of Carthagena always kept some of them among their Geese and Chickens, as it is sufficiently courageous, according to them, to repulse even the Vulture. A singular circumstance attending this bird is, that air is every where interposed between the skin and muscles, even on the legs, in such a quantity as causes it to crackle under the finger. Of the tribe whose wings have no armature, Linnaeus comprises in his genus Fulica such as have their beak prolonged into a sort of shield, which partly covers the forehead; and in his genus Rallus, those in which this peculiarity does not exist. The Rails, which, in other respects, have a strong, mutual resemblance, pre- sent bills of very different proportions. Ral. crex, L. Fawn coloured brown, spotted with black above; greyish beneath; flanks streaked with black; red wings. It lives and builds in the fields, running through the grass with great celerity. Its name, Crex, ex- presses the sound of its note. It has been called the Quail-King, because it arrives and departs with those birds, and leads a solitary life on the same grounds, from which arose the conjecture that it was their leader. It feeds on grain, as well as on worms and insects. Rallus, Lin. The Coots may be divided as follows, from the form of the beak and the ap- pliances of the feet. Fulica, Lin. Gallinula, Briss. and Lath. Or the Water-Hens. The beak very similar to that of the Ground Rail, from which these birds are distinguished by the shield on the forehead and by very long toes furnished with a very narrow border. The beak higher in proportion to its length; very long toes, without any very sensible border; the frontal shield large, rounded in some, and square above in others. These birds stand on one foot, using the other to convey their food to the beak. Their colours are usually fine shades of blue, violet, and aqua-marina. Such is Fulica porphyrio, L.; a beautiful African bird, now naturalized in several islands and coasts of the Mediterranean. Its beauty would render it an or- nament to our pleasure grounds. Pob.phyb.io, Briss. Fuiica, Briss. The True Coots, in addition to a short beak and a large frontal shield, have their toes much widened by a festooned border that renders them excel- lent swimmers, in consequence of which their lives are passed in ponds and 164 AVES. marshes. Their polished plumage is not less adapted to this kind of life than their conformation, and these birds establish an evident link between the order of the Grallatoriac and that of the Palmipedes. There is but one in Europe, F. atra, Gm. (The Coot.) The shield of a deep slate colour; edge of the wings whitish; in the nuptial season the shield becomes red: found wherever there is a pond. We will terminate this sketch of the Grallatorise with three genera, which it is difficult to associate with any other, and which may be considered as forming separately so many small families. Chionis, Foster.—Vaginalis, Lath. Or the Sheath-Bills. Their legs are short, almost like those of the Gallina- cese; their tarsi scutellated, their bill stout and conical, having a hard sub- stance enveloping its base, which, it appears, the bird has the power of raising and depressing. Only one species is known, and that is from New Holland, Fag. Chionis, Lath. It is the size of a Partridge, with entirely white plumage. It haunts the sea-coast, where it feeds on the dead animals thrown up by the waves. Glareola. The beak of the Pratincoles is short, conical, arcuated throughout, has a large opening, and resembles that of the Gallinaceae. Their excessively long and pointed wings remind us of the Swallows, or of the Palmipedes of the high seas; their legs are of a moderate length, their tarsi scutellated, and their external toes somewhat palmated; their thumb touches the ground. Aquatic worms and insects constitute their food. Our last genus will be that of Phcenicopterus, Lin. Or the Flamingos, one of the most extraordinary and insulated of all birds. The legs are excessively long; the three anterior toes are palmated to their ends, and that of the hind one is extremely short; the neck, quite as long and slender as the legs, and the small head furnished with a beak whose lower mandible is an oval longitudinally bent into a semi-cylindrical canal, while the upper one, oblong and flat, is bent crosswise in its middle, so as to join the other exactly. The membranous fossae of the nostrils occupy nearly all the side of the part which is behind the transverse fold, and the nostrils themselves are longitudinal slits in the base of the fossae. The edges of the two mandibles are furnished with small, and very delicate transverse laminae, which, with the fleshy thickness of the tongue, creates some affinity between these birds and the Ducks. Were it not for the length of their tarsi, and the nudity of their legs, we might even place them among the Palmipe- des. They feed on shell fish, insects, and the spawn of fishes, which they GRALLATORIiE. 165 capture by means of their long1 neck, turning the head on one side to give more effect to the hook of the upper mandible. They construct their nest of earth in marshes, placing themselves astride of it to hatch their eggs, a position to which they are forced to resort by the length of their legs. The species known, Ph. ruler (The Red Flamingo), is from three to four feet in height; ash coloured, with brown streaks, during the first year; in the second there is a rosy hue on the wings, and in the third it acquires a permanent purple-red on the back, and rose-coloured wings. The quills of the wing are black; the beak yellow, with a black tip, and the feet brown. This species is found in all parts of the eastern continent below 40°. We have also an American species, the Ph. ruler of Temminck. ORDER VI. PALMIPEDES. These birds are characterized by their feet, formed for natation, that is to say, placed far back on the body, attached to short and compressed tarsi, and with palmated toes. Their dense and polished plumage saturated with oil, and the thickly set down which is next to their skin, protect them from the water in which they live. They are the only birds whose bill surpasses—which it sometimes does to a considerable extent—the length of their feet, and this is so, to ena- ble them to search for their food in the depths below, while they swim on the surface. Their sternum is very long, affording a com- plete guard to the greater part of their viscera, having, on each side, but one emargination or oval foramen, filled up with membrane. This order admits of a tolerably precise division into four families. FAMILY I. BRACHYPTERiE. A part of this family has some external affinities with that of the Gallinulae. Their legs, placed further back than in any other birds, renders walking painful to them, and obliges them, when on land, to stand vertically. In addition to this, as most of them have but feeble powers of flight, and as some of them are wholly deprived of that 166 AVES faculty, we may consider them as exclusively attached to the surface of the water: their plumage is extremely dense, and its surface fre- quently polished, presenting a silvery lustre. They swim under wa- ter, using their wings with almost as much effect as though they were fins. Colymbus, Lin. The only particular character of the Divers is a smooth, straight, compressed and pointed bill, and linear nostrils; but the differences in the feet have caused them to be subdivided. The toes of the Grebes, instead of being palmated, arejwidened like those of the Coots, the anterior ones only being united at base by membranes. The middle nail is flattened, and the tarsus strongly compressed. The semi-metallic lustre of their plumage has caused it to be occasionally em- ployed as fur. Their tibia, as well as that of the succeeding subgenera, is prolonged above into a point which gives a more efficient insertion to the extensors of the leg. These birds live on lakes, &c., and build among the rushes. In certain circumstances, it appears that they carry their young ones under their tvings. Their size and plumage are so much changed by age, as to have caused an improper multiplication of species. M. Meyer reduces those of Europe to four. Col. cristatus, Gm. (The Crested Grebe) is the size of a duck; blackish- brown above, silver-white beneath; a white band on the wing; it acquires with age a double black tuft, and the adults have, in addition, a broad red colerette on the upper part of the neck edged with black. Podicefs, Lath. Mehgus, Briss.—Eudttes, Illig*. (1) The true Divers have the feet of ordinary Palmipedes, along with all the forms of the Grebes, that is, the anterior toes are united to their ends by membranes, and are terminated by pointed nails. They are northern birds, which rarely breed in France, where they arrive in winter, at which season is occasionally seen on the coast Col. glacialis, L. (The Great Northern Diver.) The adult is two feet six inches in length, its head and neck black, changing to a green with a whitish collar; back, a blackish brown dotted with whitish; white beneath; the lower mandible, which has a slight curve upwards, is marked by a groove beneath. The Guillemots have a bill, which, though of the general form of the pre- Uria, Briss. (1) Mergus (diver), the Latin name of some sea-bird difficult to determine. Eudytes, a Greek word composed by Illiger, has the same meaning1. PALMIPEDES. 167 ceding, is covered with feathers down to the nostrils; there is also an emar- gination at the point which is somewhat arcuated. Their chief character, however, consists in the absence of the thumb. Their wings, much shorter than those of the Divers, scarcely enable them to flutter. They feed on fish, crabs, &c. and are found among rocky precipices when they breed. Alca, Lin. The Auks are known by the very much compressed, vertically raised bill which has a trenchant back, and is usually grooved transversely; and by the feet which are completely palmated, and have no thumb like those of the Guillemot. All these birds inhabit the northern seas. We may divide the genus into two subgenera. Fratercula, Briss. Or the Puffins, whose bill, shorter than the head, is as high and higher at base than it is long, which gives it a very extraordinary form; a folded skin usually covers its base. The nostrils placed near the edge are mere slits. Their small wings can just sustain them for a moment; they live upon the ocean and breed on the rocks. The most common species, Alca arctica, L., is the size of a Pigeon, and has a black calotte and mantle; w'hite beneath. It sometimes breeds among the cliffs on the English coast, and is very common on those of France dur- ing the winter. Aica, Cuv.(l) The true Auks have a more elongated bill, resembling in form the blade of a knife; it is covered with feathers as far as the nostrils. Their wings are decidedly too small to support them, and therefore they never at- tempt to fly. The Penguins are even less capable of flying than the Auks. Their little wings are covered with mere vestiges of feathers, which at the first glance resemble scales; their feet, placed farther behind than those of any other bird, only support them by bearing on the tarsus, which is widened like the sole of the foot of a quadruped, and in which are found three bones soldered together at their extremities. They have a small thumb directed inwards, and their three anterior toes are united by an entire membrane. They are only found in the Antarctic Seas, never going on shore except to breed. They can only reach their nests by drawing themselves along on their bellies. The difference in their bill authorizes their division into several subgenera. Aptejnodytes, Forst. (1) Aka, Aik, Auk, the name of these birds in the Feroe Islands, and in the north of Scotland. That of Penguin, first given to the Aptenodytes of the south by the Dutch, indicates the oily nature of their fat. 168 AVES. Apt. patagonica, Gm. (The Great Penguin.) Is the size of a Goose, slate-coloured above, white beneath; ablack mask surrounded with a lemon- coloured cravatte. Found in large troops near the straits of Magellan, and as far as New Guinea. The flesh, though black, is eatable. Catahrhactes, Briss. The Gorfus{ 1) have the bill stout, but little compressed, pointed, rounded on the back, and its point somewhat arcuated; the groove which arises from the nostril terminates obliquely on the inferior third of its edge. FAMILY II. LONGIPENNES. This family includes those birds of the high seas, which from their immense strength of wing are to be met with in every latitude. They are known by the freedom or nullity of the thumb, by their very long wings, and by their bill which is not notched but hooked at the point in the first genera, and simply pointed in the others. Procellaria, Lin. The Petrels have a bill hooked at the end, the extremity of which seems to consist of a distinct piece articulated with the remainder. Their nostrils are united and form a tube laid on the back of the upper mandible; there is a nail planted in the heel, but no thumb. Of all the Palmipedes, these re- main most constantly at a distance from land, and when a tempest super- venes, they are forced to seek shelter on reefs and ships, from which circumstance they derive their name of Storm Birds: that of Petrel—Little Peter—has been given to them on account of their habit of walking on the water, which they effect by the aid of their wings. They make their nests in holes of rocks, and eject on those who attack them an oily fluid with which their stomach seems to be always filled. The greater number inhabit the Antarctic Seas. Proc. gigantea, Gm. (The Giant Petrel) is only found in the South Seas. It is the largest of all the species, surpassing the Goose in size. Its plumage is blackish, though there are some varieties in which it is more or less white. Certain small species, with a somewhat shorter bill and rather longer legs (1) Gorfu, a corruption of goir fugel, the name of the Great Auk in the Feroe Islands. Catarrhactes is the Greek name of a very different bird, which could fly well, and precipitated itself from a height on its prey. It was most probably a species of Gull. PALMIPEDES. 169 and black plumage, the Thaiassidroma, Vigors, are particularly designated by sailors under the name of “ Mother Carey’s Chickens.” The most common, Proc. pelagica, Briss. is scarcely larger than a Lark; stands high; all brown except the rump which is white, and a white line on the end of the great wing-coverts. When it seeks shelter on a vessel, it may be considered as the forerunner of a hurricane. We separate, withBrisson, under the name of Or Puffins, those in which the end of the lower mandible is curved down- wards along with that of the upper one, and in which the nostrils, although tubular, do not open by one common orifice, but by two distinct holes, Their bill also is proportionally longer, Proc. puffinus, Gm. Cinereous above; whitish beneath; wings and tail blackish: the young is darker. Its size is that of a Crow, Very common in. almost every sea. Puffinus, The Albatross is the most massive of all aquatic birds. The large, strong and trenchant bill is marked with sutures, and is terminated by a stout hook, which seems to be articulated with it. The nostrils resemble short rolls laid on the sides of the beak; there is no thumb, not even the small nail that is observed in the Petrels. They inhabit the South seas, and feed on Mob lusca, &c. D. exulans, L., is the species best known to navigators, who, on account of its size, white plumage, and black wings, and because it is particularly common beyond the tropic of Capricorn, have called it The Cape Sheep, The English also style it the Man of War Bird, &c. It is the great ene- my of the Flying-fish. It constructs a high nest of earth, and lays a num- ber of eggs, which are considered good food. Diomedea, Lin.(l) Larus, Lin. The Gulls have a compressed, elongated, pointedbill, the superior mandible arcuated near the end, and the inferior forming a salient angle beneath. The nostrils, placed near its middle, are long, narrow, and bored quite through; their tail is full, their legs tolerably long, and their thumb short. They are cowardly and voracious birds, which swarm along the sea coasts, feeding on fish, the flesh of dead bodies, &c. They breed in the sand, or in clefts of rock, laying but few eggs. When they fly into the country, bad weather may be expected. (1) Diomedea, the ancient name of certain birds of the Island of Diomedes, near Tarentum, which were said to receive the Greeks favourably, and to attack the barbarians. As to the word Albatross, I find that the early Por- tuguese navigators called the Boobies and other oceanic birds Mcatros, or Mcairass. 170 AYES. Lar. cyanorhynchus, Meyer. (The Common Gull.) When old, of a beautiful white, with a light ash coloured mantle; the primary quills of the wing partly black, with white spots at their tips, the feet and bill lead co- loured. Feeds on shell fish. Sterna, Lin. The Terns, or Sea-Swallows, derive this latter appellation from their excess- ively long and pointed wings and from their forked tail, which render their flight and carriage analogous to those of Swallows. Their bill is pointed, compressed, and straight, without curve or projection; the nostrils, placed near its base, are oblong and pierced quite through; the membranes which unite their toes are deeply emarginate, consequently they swim but seldom. They fly over the waves in every direction and with great rapidity, uttering loud cries, and skilfully raising from the surface of the water the Mollusca and small Fish on which they feed. They also penetrate to the lakes and rivers of the interior. There are several species. We may also distinguish from the other Terns, The Noddies, Whose tail is not forked, and is nearly as long as the wings. There is a slight projection under their bill, the first indication of that in the Mauves. But one species is known, St. stolida, L. (The Noddy), which is a blackish brown, top of the head whitish. Celebrated for the blundering manner in which it throws itself on vessels. The S/cimmers resemble the Terns in their small feet, long wings and forked tail, but are distinguished from all birds by their extraordinary bill, the up- per mandible of which is shorter than the other, both being flattened so as to form simple blades, which meet without clasping. Their only mode of feeding is by skimming their aliment from the surface of the water with the lower mandible, which they effect while on the wing. One species, Ehym. nigra, L. (The Black Skimmer), is white, with a black mantle and calotte; a white band on the wing; outside of the external quills of the tail white; bill and feet red; hardly as large as a Pigeon. From the vici- nity of the Antilles. Rhynchops, Lin. FAMILY III. TOTIPALMATJE. The birds of this family are remarkable for having the thumb united with the toes by one single membrane, a mode of organization 171 PALMIPEDES. that renders their feet complete oars, notwithstanding which, they perch upon trees, being almost the only Palmipedes who do so. They all fly well and have short feet. Linnaeus separated them into three genera, the first of which it was necessary to subdivide. The Pelicans comprise all those in which the base of the bill is found to have some part destitute of feathers. Their nostrils are fissures, the apertures of which are scarcely perceptible. The skin of their throat is more or less extensible, and their tongue very small. Their thin gizzard, with their other stomachs, forms a large sac. The bill of the True Pelicans is very remarkable for its extreme length, its straight, very broad and horizontally flattened form, for the hook which terminates it, and for the lower mandible whose flexible branches sustain a naked membrane, susceptible of being dilated into a large sac. P. onocrotalus, L. (The Common Pelican.) As large as a Swan, en- tirely white, slightly tinged with flesh colour; the hook of the bill of a cherry-red; is more or less disseminated throughout the eastern continent, breeds in marshes, and feeds exclusively on living Fish. It is said to trans- port both food and water in its sac. Pelecanus, Lin. Phaeackocohax, Briss. The Carmorants[\) have an elongated and compressed beak, the end of the upper mandible hooked, and that of the lower one truncated; the tongue is very small, and the skin of the throat less dilatable; the nostrils resemble a small unpierced line, and. the nail of the middle toe is notched like a saw. Pel. carbo, L. (The Cormorant.) Black-brown, undulated with jet black on the back, and mixed with white near the end of the bill and front of the neck; circumference of the throat and the cheeks, white, in the male, which also has a tuft on the occiput. Its size is that of the Goose. It breeds in holes among the rocks or upon trees, and lays three or four eggs. Tachypetes, Vieill. The Frigate Birds differ from the Cormorants in their forked tail and short feet, the membranes of which are deeply emarginated; in an excessive length of wing, and in a bill both of whose mandibles are curved at the point. So powerful are their wings, that they fly to an immense distance from all land, principally between the tropics, darting upon the Flying Fish and striking the Boobies to make them disgorge their prey. One species only is well known, the Pelecanus aquilus, L., whose plumage (1) Cormorant from Cormoran, a corruption of Corbeau marin, on account of its black colour. It is in fact the Aquatic Crow of Aristotle. Phalacro- corax (Bald Craw) is the Greek name of this bird, indicated by Pliny, but is not employed by Aristotle. 172 AVES. is black, the under part of the throat and neck more or less varied with white* and the bill red. Its wings, when expanded, are said to measure from ten to twelve feet. The Boobies[ 1) have a straight, slightly compressed, pointed bill, the point slightly arcuated; its edges are serrated, the teeth inclining backwards; the nostrils are prolonged by a line which extends to near the point. They are called Boobies on account of the excessive stupidity with which they permit themselves to be attacked by men and birds, the Frigate Birds par- ticularly, which, as already stated, force them to yield up the fish they have captured. The most common is Felecanus bassanus, L. (The Common Booby.) White; the primary quills of the wings and the feet black; the beak greenish; nearly as large as the Goose. It is called the Bassan Booby from a small island in the gulf of Edinburgh, where it is very abundant although it lays but a single egg. Sci-a, Briss. The Darters have the body and feet very similar to those of a Cormorant; a long neck and small head, with a straight, slender, pointed beak, whose edges are denticulated; the eyes and nudity of the face, as in the Pelicans; their habits also are similar, perching on trees. Several species or varieties are known from the hot climates of both con- tinents. They are not larger than the Duck, but they have a longer neck. Plotus, Lin.(2) Phaeton, Lin. The Tropic Birds are known by two very long and narrow feathers that flow -from their tail, which at a distance resemble so many straws. There is no naked part about the head. Their bill is straight, pointed, denticulated, and tolerably strong; their feet short and their wings long; their powers of flight are consequently great, and as they rarely quit the torrid zone, their pre- sence announces to the mariner his vicinity to the tropics. On land, where they seldom resort except to breed, they perch on trees. FAMILY IV. LAMELLIROSTRES. In this family we find a thick bill, invested with a soft skin rather than with true horn; its edges are furnished with laminae or little teeth; the tongue is broad and fleshy, the edges notched. The wings (1) Sula is the name of the common species at the Feroe Islands. (2) Plotus, orplautus, signifies* in Latin, flat-foot. 173 PALMIPEDES. are of a moderate length. They pass more of their time on fresh waters than at sea. The great genus Anas, Lin. Comprises those Palmipedes, the edges of whose large and broad bill are furnished with a range of thin salient laminae, placed transversely, which appear destined to allow the water to pass off when the bird has seized its prey. They are divided into three subgenera, whose limits, however, are not very precise. Ctgnus, Meyer. The bill of the Swans is of an equal breadth throughout, higher at base than it is wide; the nostrils about the middle of its length; the neck is very long. They are the largest birds of the genus, and feed chiefly on the seeds and roots of aquatic plants. Their intestines and caeca in particular are con- sequently very long. There is no inflation of the trachea. Two species are found in Europe. Anasolor, Gm. (The Red-billed or Domestic Swan.) Beak red, edged with black, surmounted at base by a rounded protuberance; the plumage snow-white. When young, the beak is lead-coloured and the plumage grey. This is the species, when domesticated, that forms the ornament of our ponds and grounds. Its elegance of form, graceful movements and snow-white plumage have rendered it the emblem of innocence and beauty. It feeds both on fish and vegetables, flies extremely high and with great swiftness, using its wings, which are a powerful weapon, in striking its enemies when attacked. It breeds among the reeds in ponds, and lays six or eight eggs of a greenish-grey. An. cygnus, Gm. (The Black-billed Swan.) Bill black with a yellow base; the body white tinged with a yellowish grey—when young, all grey. An. plutonia, Sh. (The Black Swan) has been lately discovered in New Holland; it is the size of the common species, but its carriage is less grace- ful and elegant; it is all black, the primary quills excepted, which are white, and the bill with the naked skin on its base, which is red. Anser, Briss. Geese have a moderate or short bill, narrower before than behind, and higher than wide at base; their legs, being longer than those of the Ducks, and placed nearer the centre of the body, increase their facility in walking. Several of them feed on seeds and plants. There is no inflation at the root of the trachea, nor is there any curve in that organ in any of the species known. Have a bill as long as their head; the ends of the lamella extend to its edges, appearing like pointed teeth. Geese, properly so called, 174 AVES. An. anser, L. (The Common Goose), which has acquired all sorts of colours in our poultry-yards, originates from a wild species that is grey, with a brown mantle undulated with grey and an orange-coloured beak, the Arts, cinereus, Meyer. An. hyperborea, Gm. (The Snow-Goose.) White; feet and bill red; tips of the wing-quills black. It sometimes wanders into the temperate parts of Europe during the prevalence of heavy gales in winter. The young bird is more or less grey. Bernacees Are distinguished from the Common Geese by a shorter and slenderer bill, the edges of which conceal the extremities of the laminae. An. bernicla, Gm. (The Brant.) The head, neck, and quills of the wings are black, the mantle a brown-grey; a spot on each side of the upper part of the neck, and the under part of the tail, white; the bill black and feet brown. An. segyptiaca, Gm. (The Egyptian Goose), remarkable for the lustre of its colours and the small spur attached to its wings, also belongs to this sub- genus; it is sometimes domesticated, but always retains a propensity to re- turn to its wild state. It is the Chenalopex or Fox-Goose, held in veneration among the ancient Eyptians on account of its attachment to its young. Anas, Meyer. Ducks, properly so called, have the bill broader at base than it is high, and wider at the end than towards the head; the nostrils nearer to its back and base. Their legs being shorter than those of Geese, and placed farther back, renders walking more difficult to them than to the latter. The species of the first division, or those whose thumb is bordered with a membrane, have a larger head, a shorter neck, the feet placed farther back, smaller wings, a stiffer tail, more compressed tarsi, longer toes, and the membrane of the feet more entire. They walk with more difficulty, feed more exclusively on fish and insects, and dive more frequently. Ducks are now distributed into various subgenera: such as Oidemia (the Scoter, Velvet Duck, Black Duck); Clangula (Long tailed Duck); Soma- teria (Eider Duck); Fuligula (Red-head, Pochard Duck, Tufted Duck); Rhynchaspis, (The Shoveller); and Tadorna (The Shieldrake, Muscovy Duck), originally from South America where it perches on trees, and the An. boschas, L. (or Mallard), the stock of our common tame Duck, Teal, &c. Mergus, Lin. The genus of the Mergansers comprehends those species in which the bill, thinner and more cylindrical than that of the Ducks, is armed along its edges with small pointed teeth resembling those of a saw and directed backwards; the tip of the upper mandible is hooked. Their carriage and even plumage are those of Ducks, properly so called; but their gizzard is less muscular. The inflation of the lower larynx in the males is enormous, 175 PALMIPEDES. and partly membranous. They live on lakes and ponds, where they are very destructive to fish. Merg. merganser, L. (The Goosander), is the size of a Duck, and has red feet and a bill of the same hue. The head of the old male is of a deep green, the feathers on its summit forming a sort of toupee; the mantle is black, with a white spot over the wing; underneath and the neck white slightly tinged with rose-colour. CLASS III. REPTILIA. The disposition of the heart in Reptiles is such, that at each con- traction, a portion only of the blood it has received from the differ- ent parts of the body is transmitted to the lungs, the remainder returning to those parts without having passed through the pulmo- nary organs, and without having respired. The result of this is, that the action of oxygen upon the blood is less than in the Mammalia, and that if the quantity of respiration in the latter, in which all the blood is compelled to pass through the lungs before it returns to the rest of the body, be expressed by a unit, that of Reptiles will be expressed by a fraction of a unit, so much the smaller, as the quantity of blood transmitted to the heart at each contraction is less. As it is from respiration that the blood derives its heat and the fibre its susceptibility of nervous irritation, the blood of reptiles is cold, and the muscular energy less than that of Quadrupeds, and much less than that of Birds; thus we find their movements usually confined to crawling and swimming; for, though at certain times several of them jump and run with considerable activity, their habits are generally lazy, their digestion excessively slow, and their sensa- tions obtuse. In cold or temperate climates almost all of them pass the winter in a state of torpor. Their brain, which is proportionally very small, is not so essentially requisite to the exercise of their ani- mal and vital faculties, as to the members of the two first classes; their sensations seem to be less referred to a common centre, for 176 REPTILIA. they continue to live and to exhibit voluntary motions, long after losing their brain, and even after the loss of their head. A commu- nication with the nervous system is also much less necessary to the contraction of their fibres, and their muscles preserve their irrita- bility after being severed from the body much longer than those of the preceding classes; their heart continues to pulsate for hours after it has been torn away, nor does its loss prevent the body from moving for a long time. The smallness of the pulmonary vessels permits Reptiles to suspend the process of respiration without arresting the course of the blood; thus they dive with more facility, and remain longer under water than either the Mammalia or Birds. No Reptile hatches its eggs. The young Batrachians, on quitting the egg, have the form and branchiae of Fishes, and some of the genera preserve these organs, even after the development of their lungs. The quantity of respiration in Reptiles is not fixed like that of the Mammalia and Birds, but varies with the proportion of the diameter of the pulmonary artery compared to that of the aorta. Thus Tortoises and Lizards respire more than Frogs, &c.; and hence a much greater difference of sensibility and energy than can exist between one of the Mammalia and another, or between Birds. The comparison, however, of their quantity of respiration and of their organs of motion, has enabled M. Brogniart to divide them into four orders, viz. The Chelonia, or Tortoises., whose heart has two auricles, and whose body, supported by four feet, is enveloped by two plates or bucklers formed by the ribs and sternum. The Sauria, or Lizards, whose heart has two auricles, and whose body, supported by four or two feet, is covered with scales. The Ophidia, or Serpents, whose heart has two auricles, and whose body always remains deprived of feet. The Batrachia, whose heart has but one auricle, and whose body is naked, most of which pass, with age, from the form of a Fish re- spiring by branchiae, to that of a Quadruped breathing by lungs. Some of them, however, always retain their branchiae, and a few have never more than two feet. REPTILIA. 177 ORDER I. CHELONIA. The Chelonia, better known by the name of Tortoises, have a heart composed of two auricles, and of a ventricle divided in two unequal cavities, which communicate with each other. These animals are distinguished at the first glance by the double shield in which the body is enveloped and which allows no part to project except their head, neck, tail, and four feet. The shell (or upper shield) is formed by the ribs, of which there are eight pair, widened and reunited by denticulated sutures, and with plates ad- hering to the annular portion of the dorsal vertebra, so that all these parts are rendered fixed and immovable. The inferior shell is formed of pieces, usually nine in number, analogous to a sternum. A frame composed of bony pieces, which have been considered as possessing some analogy with the sternal or cartilaginous portion of the ribs, and which in one subgenus always remains in a cartilagi- nous state, surrounds the shell, uniting and binding together all the ribs which compose it. The vertebrae of the neck and tail are con- sequently the only ones which are movable. The lungs have considerable extent, and are situated in the same cavity with the other viscera. The thorax, in most of them, being immovable, it is by the play of its mouth that the Tortoise respires, which it effects by keeping the jaws closed, and alternately raising and depressing the os hyoides. The former of these motions per- mits air to enter through the nostrils, the tongue then closes the in- ternal orifice of those apertures, when the latter forces the air into the lungs. Tortoises have no teeth; their jaws are invested with horn like those of Birds; the Chelydes excepted, where they are covered with skin only. They possess great tenacity of life, and instances are on record in which they have been seen to move for several weeks after losing their head. They require but little nourishment, and can pass whole months and even years without eating. The Chelonia were all united in the genus 178 REPTILIA. They have since been divided into five subgenera, chiefly from the forms and teguments of their shell, and of their feet. Testudo, Lin. Testudo, Brog. The Land Tortoises have the shell arched and supported by a solid, bony frame, most of its lateral edges being soldered to the sternum; the legs, as if truncated, with very short toes, which are closely joined as far as the nails, all susceptible of being withdrawn between the bucklers; there are five nails to the fore-feet, the hind ones have four, all stout and conical. Several species live on vegetable food. Emys, Brongn. The Fresh-water Tortoises have no other constant characters by which they can be distinguished from the preceding ones, than the greater sepa- ration of the toes, which are terminated by longer nails, and the intervals occupied by membranes; even in this respect there are shades of difference. They likewise have five nails before and four behind. The form of their feet renders their habits more aquatic. Most of them feed on Insects, small Fishes, &c. Their envelope is generally more flattened than that of the land Tortoises. Among the fresh-water Tortoises we should remark The Box-Tobtoises, the sternum of which is divided by a movable articulation into two lids, which, when the head and limbs are withdrawn, completely encase the ani- mal in its shell. The envelope of the Sea Tortoises is too small to receive their head, and particularly their feet, which are very long (the anterior ones most so), and flattened into fins. The toes are all closely united in the same membrane, the two first ones of each foot being alone furnished with pointed nails, one or other of which at a certain age is usually lost. The pieces of their ster- num do not form a continuous plate, but are variously notched, leaving considerable intervals which are filled with cartilage only. The ribs are narrowed and separated from each other at their external extremities; the circumference of the shell, however, is surrounded with a circle of pieces corresponding to the ribs of the sternum. Test, my das, L. (The Green Tortoise) is distinguished by its greenish plates, thirteen in number, which are not arranged like tiles; those of the middle range are almost regular hexagons. It is found from six to seven feet long, and weighing from seven to eight hundred pounds. Its flesh is highly esteemed, and furnishes a wholesome and palatable supply of food to the mariner in every latitude of the torrid zone. It feeds in large troops on the sea-weed at the bottom of the ocean, and approaches the mouths of rivers to respire. The eggs it deposits in the sand to receive the vivifying influence of the sun, are excellent food; its shell is of no value. Chelonia, Brongn. 179 Merrem has recently distinguished, by the name of Sphahgis, those Che- lonise whose shell is destitute of plates, and merely covered with a sort of leather. Such is Test, coriacea, L. A very large species of the Mediterranean. Its shell is oval and pointed behind, exhibiting three projecting longitudinal ridges. CHELONIA. The Chelydes resemble fresh water Tortoises in their feet and nails; and their most dominant character consists in their mouth, which opens cross- wise, being unarmed with the horny beak common to the other Cheloniac, and similar to that of certain Batrachians, the Pipa in particular. Test, fimbria, Gm. The shell studded with pyramidal elevations, and the body edged all round with a pinked fringe. It is found in Guiana. Cheiys, Dum. Trionyx, Geoff. The Soft-shelled Tortoises have no scales, the shell and sternum being simply enveloped by a soft skin; neither of those shells is completely sup- ported by bones, as the ribs do not extend to the edge of the upper one, and are united with each other only for a portion of their length, the parts analogous to the sternal ribs being simple cartilage, and the sternal pieces partially notched as in the sea-tortoises, not covering the whole lower sur- face. The horn of their beak is invested externally with fleshy lips, and their nose is prolonged into a little snout. Their tail is very short. They live in fresh water, and the flexible edges of their shell aid them in swimming. Test, ferox, Gm. (The Soft-shelled Tortoise of America) inhabits the rivers of Carolina, Georgia, the Floridas, and of Guiana. It remains in am- bush under roots of reeds, &c. whence it seizes birds, reptiles, &.C., devours the young Alligators, and is devoured in turn by the old ones. Its flesh is highly esteemed. ORDER II. SAURIA.(l) The Saurians have a heart like that of the Chelonia, composed of two auricles and a ventricle, sometimes divided by imperfect par- titions. Their ribs are movable, partly connected with the sternum, and rise and fall in respiration. (1) From trtLvpo; Lizard, animals analogous to Lizards. 180 REPTILIA. Their lung extends more or less towards the posterior extremity of the body; it frequently penetrates very far into the lower part of the abdomen, whose transverse muscles pass under the ribs, and even towards the neck, to clasp it. Those in which this organ is very large, possess the singular faculty of changing the colours of their skin according to the excitement produced in them by their wants or passions. Their eggs are enveloped by a covering more or less hard, and the young always retain the form in which they quit them. Their mouth is always armed with teeth, and their toes, with very few exceptions, are furnished with nails; their skin is covered with scales, more or less compact, or at least with scaly granules. They all have a tail more or less long, and generally very thick at base; most of them have four legs, a few only having but two. FAMILY I. CROCODILIDA. This family contains the single genus Crocodilus, Br. Crocodiles are large animals, with a tail flattened on the sides, five toes be- fore and four behind, of which only the three internal ones on each foot are armed with nails, all more or less united by membranes; a single range of pointed teeth in each jaw; the tongue fleshy, flat, and adhering close to its edges; a circumstance which induced the ancients to believe that they had none; the back and tail covered with very stout, large, square scales or plates, relieved by a ridge along their middle; a deeply notched crest on the tail, which is double at its base. The plates on the belly are smooth, thin, and square. Their nostrils, which open on the end of the muzzle by two small crescent-shaped fissures closed by valves, communicate with the extremity of the hind part of the mouth, by a narrow canal which traverses the palatine and sphenoidal bones. The lower jaw being continued behind the cranium, the upper one ap- pears to be movable, and has been so described by the ancients; it only moves, however, with the entire head. They have the power of closing the external ear by means of two fleshy lips, and there are three lids to their eyes. The vertebra: of the neck rest on each other through the medium of small false ribs, which renders all lateral motion difficult, and does not allow these SAURIA. 181 animals to deviate suddenly from their course; consequently it is easy to escape from them by pursuing a zig-zag direction, or by running round them. Their eggs are as large and hard as those of a Goose; the females keep careful watch over them, and tenderly protect their young for some months. They inhabit fresh water, are extremely ferocious and carnivorous, cannot swallow under water, but drown their prey, and place it in some submerged crevice of a rock, where they allow it to putrefy before they eat it. The species, which are more numerous than they were thought to be previous to my observations, are referable to three distinct subgenera, viz. Gavials, true Chocodii.es, and Alligators. To the latter belongs Croc. Indus, Cuv. It inhabits the southern parts of North America, for- ces itself into the mud in severe winters, and remains torpid. The female deposits her eggs in alternate layers with beds of earth. FAMILY II. LACERTINIDA.(l) This family is distinguished by the tongne, which is thin, extensi- ble, and terminates in two threads, like that of the Coluber and Viper; the body is elongated; the gait rapid; each foot has five toes separate and unequal, the hind ones particularly so, all armed with nails; the scales on the belly and round the tail are arranged in transverse and parallel bands; the tympanum is level with the head, or but slightly sunk and membranous. A production of the skin with a longitudinal slit which is closed by a sphincter, protects the eye, under whose anterior angle is the vestige of a third eye-lid; the false ribs do not form a complete circle. The species being very numerous and various, we subdivide them into two great genera. Monitor. This genus contains species of the largest size; they have two teeth in both jaws, but none in the palate; the greater number are recognized by their laterally compressed tail, which renders them more aquatic. The vicinity of water sometimes brings them in the neighbourhood of Crocodiles and Alligators, and it is said that by whistling they give notice of the approach of these dangerous animals. This report is most probably the origin of the term Sauvegarde or Monitor applied to some of their species, but the fact is very uncertain. Lac. nilotica, L. Strong conical teeth, the posterior of which become (1) Lacerta, a Lizard. 182 REPTILI A. rounded by age; brown, with pale and deeper coloured dots, forming vari ous compartments, among which we observe transverse rows of large ocel- lated spots that become rings on the tail. It attains a length of five and six feet. The Egyptians pretend it is a young Crocodile hatched in a dry place. It was engraved upon the monuments of that country by its ancient inhabitants, and possibly, because it devours the eggs of the Crocodile. Lacerta, properly so called, Or true Lizards, form the second genus of the Lacertians. The extremity of their palate is armed with two rows of teeth, and they are otherwise distinguished by a collar, under the neck, formed of a transverse row of large scales, separated from those on the belly by a space covered with small ones only, like those under the throat; and by the circumstance that a part of the cranium projects over their temples and orbits, so as to furnish the whole top of the head with a bony buckler. They are very numerous. FAMILY III. IGUANIDA. This third great family of Saurians possesses the general form, long tail, and free and unequal toes of the Lacertians; their eye, ear, &c. are also similar, but their tongue is fleshy, thick, non-ex- tensible, and only emarginated at the tip. They maybe divided into two sections; in the first, or that of the Agamians, there are no palatine teeth. In this section we place the following genera. Stellio, Cuv In addition to the general characters of the family of the Iguanida, the tail is encircled by rings composed of large and frequently spiny scales. It is divided by naturalists into various subgenera. Agama, Daud. The A gams bear a great resemblance to the common Stellios, particularly in their inflated head; but the scales of their tail, which are imbricate and not verticillate, distinguish them from that genus. Their maxillary teeth are nearly similar, and there are none in the palate. This genus is also di- vided into various subgenera. IsTIURUS, CUV. The distinguishing character of this genus consists in an elevated and tren- SAURIA. 183 chant crest, which extends along a part of the tail, and which is supported by high spinous apophyses of the vertebrae; tins crest is scaly like the rest of the body; the scales on the belly and tail are small, and approach some- what to a square form; the teeth are strong, compressed, and without den- ticulations: there are none in the palate: there is a series of femoral pores. The skin of the throat is smooth and lax, but without forming a dewlap. Draco, L.(l) The Dragons are distinguished at the first glance, from all other Saurians, by their first six false ribs, which, instead of encircling the abdomen, extend outwards in a straight line, and support a production of the skin, forming a kind of wing that may be compared to that of a Bat, but which is not connected with the four feet; it acts like a parachute in supporting them, . when they leap from one branch to another, but has not sufficient power to enable them to rise like a Bird. They are small animals, completely in- vested with little imbricated scales, of which those on the tail and limbs are carinated. Their tongue is fleshy, but slightly extensible, and somewhat emarginate. A long pointed dewlap hangs under their throat. All the known species are from the East Indies. It is perhaps to this tribe of Agamians that we should approxi- mate a very extraordinary reptile which is only to be found among the fossils of the old Jura limestone formation. It had a short tail, an extremely long neck, and a very large head; the jaws armed with equal and pointed teeth; but its chief character consisted in the excessive elongation of the second toe of the fore-foot, which was more than double the length of the trunk, and most probably served to support some membrane which enabled the animal to fly, like that upheld by the ribs of the Dragon. Ptehodactvlus, Cuv. The second section of the Iguanian family, that of the Iguanians proper, is distinguished from the first by having teeth in the palate. Iguana, Cuv. In Iguana, properly so called, the body and tail are covered with small im- bricated scales; along the entire length of the back is a range of spines, or (1) The term J'psucuv, draco, generally designated a large Serpent; Dragons, with a crest or beard, are spoken of by ancient writers, a description which can only apply to the IguanaLucian is the first who mentions Flying Dragons, alluding, no doubt, to the pretended Flying Serpents treated of by Herodotus. St Augustine, and other subsequent authors, ever after de- scribed Dragons as having wings. 184 REPTILIA. rather of recurved, compressed, and pointed scales; beneath the throat a pendent, compressed dewlap, the edge of which is supported by a cartila- ginous process of the hyoid bone; a series of porous tubercles on their thighs as in the true Lizards; the head covered with plates. Each jaw is surround- ed with a row of compressed, triangular teeth, whose cutting edge is den- ticulate; two small rows of the same on the posterior edge of the palate. Ig. tuberculata, Laur. (The Common American Iguana.) Yellowish green above, marbled with pure green; the tail annulated with brown, &c.; from four to five feet in length, and common in South America where its flesh is esteemed delicious, although unwholesome. It lives mostly on trees, occasionally visits the water and feeds on fruit, grain, and leaves; the female lays her eggs in the sand, they are the size of those of a Pigeon, agreeable to the taste and almost without wliite. The remaining genera are Ophyressa, Basiliscus, Polychrus, Echphimotus, Opiums, and Anolius, the last of which is remarkable for the skin of the toes, which is spread out into a disk, that enables them to cling to various surfaces. It is to this family of the Iguana) with palatine teeth, that belongs an enormous fossil reptile known by the name of the Maestricht Animal, and for which the new name of Mosasaurus has recently been coined. FAMILY IV. GECKOTIDA. This family is composed of nocturnal Lizards which are so similar that they may be left in one genus. The Geckos are Saurians which do not possess the elongated graceful form of those of which we have hitherto spoken, but on the contrary are flattened, the head particularly. Their feet are moderate, and the toes almost equal; their gait is a heavy kind of crawling; very large eyes, whose pupil becomes narrowed at the approach of light like that of a Cat, render diem nocturnal animals, which secrete themselves during the day in dark places. Their very short eye-lids are completely withdrawn between the eye and the orbit, which gives them a different aspect from other Saurians. Their tongue is fleshy and non-extensible; their tympanum somewhat sunk; their jaws every Gecko, Daud.(l)—Askalarotes, Cuv. (1) Gecko, a name given to a species in India, in imitation of its ciy, just as another one is termed Tockaie at Siam, and a third Geitje at the Cape} cltkclmCuIik, the Greek name of the Geckotte, Lacep. SAURIA 185 where furnished with a range of very small closely-jointed teeth; their palate without teeth; their skin is studded above with very small granular scales, among which are often found larger tubercles, and beneath, covered with scales somewhat smaller, which are flat and imbricated. This genus is numerous and disseminated throughout the warm portions of both continents. The melancholy and heavy air of the Gecko superadd- ed to a certain resemblance it bears to the Salamander and the Toad, have rendered it the object of hatred, and caused it to be considered as veno- mous, but of this there is no real proof. The toes of most of them are widened along the whole or part of their length, and furnished beneath with regular plaits of skin, which enable them to adhere so closely, that they are sometimes seen crawling along ceilings. They are now divided into the Platidadyli, Hemidactyli, Thecadadyli, &c. &c., according to the different arrangement of the toes. We are compelled to establish FAMILY V, CHAMiELEONIDA, For the single genus, Or the Chameleons, which is very distinct from all other Saurian genera; and is not even easily intercalated in their series. Their skin is roughened by scaly granules, their body compressed, and the back—if we may so express it—trenchant; tail round and prehensile; five toes to each foot, but divided into two bundles, one containing two, the other three, each bundle being united by the skin down to the nails; the tongue fleshy, cylindrical, and susceptible of great extension; teeth trilobate; eyes large, but nearly covered by the skin, except a small hole opposite to the pupil, and possessing the faculty of moving independently of each other; no visible external ear, and the occiput pyramidically elevated. Their first ribs are joined to the sternum; the following ones are extended each to its fellow on the opposite side, so as to enclose the abdomen by an entire circle. Their lungs are so enormous, that when inflated, their body seems to be transparent, a circumstance which induced the ancients to believe that they fed on air. They live on insects which they capture with the viscid ex- Cham,eleo,(1) (1) Xct/uttiKscov (Little Lion), the Grecian name of this animal. Aristotle, who uses it, has also given an excellent description of it. Hist. An. Lib. II, cap. ix. 186 tremity of their tongue, the only part of their body which seems to be endow- ed with quickness of motion, as in every thing else they are remarkable for their excessive slowness. The great extent of their lungs is probably the cause of their faculty of changing colour, which takes place, not as is thought in conformity with the hue of the bodies on which they rest, but according to their wants and passions. Their lungs, in fact, render them more or less transparent, compel the blood in a greater or less degree to return to the skin, and even colour that fluid more or less vividly in propor- tion to the quantity of air they contain. They always remain on trees. Lac. africana, Gm. (The Common Chameleon.) The hood pointed and relieved by a ridge in front; the granules on the skin equal and close; the superior crest indented as far as half the length of the back, the inferior to the anus. The hood of the female does not project so much and the denticulations of her crests are smaller. From Egypt, Barbary, and even the south of Spain, and India. REPTILIA. FAMILY VI. SCINCOIDEA. The Scincoideans are known by their short feet, non-extensible tongue, and the equal scales which cover the body and tail, like tiles. Four short feet; the body and tail almost one continued and uniform piece; no enlargement of the occiput; without crest or dewlap, and covered with uniform, shining scales, arranged like tiles, or those of a Carp. Some of them are fusiform; others, more or less elongated, resemble Serpents, the Anguis particularly, to which they are related by several internal affinities, and which they connect with the family of the Iguanida, by an uninterrupted suite of transitions. Their tongue is fleshy, but slightly extensible and emarginate; the jaws every where furnished with small, closely set teeth. In the eye, ear, &c., they bear a greater or less resemblance to the Iguanse and Lizards; the feet are furnished with free andunguiculated toes. Scincus, Daud. Seps, Daud. Seps only differs from Scincus in the more elongated body, which is exactly similar to that of an Anguis, and in the still smaller feet, the two pairs of which are further apart. Their lungs begin to exhibit some inequality. Bipes, Lacep. A small genus, only differing from Seps in the entire absence of fore feet, having the scapulae and clavicles concealed beneath the skin, the hind feet alone being visible. There is but a step from it to Angitis. 187 Ciialcides, Dautl. SAUR1A. Elongated Lizards resembling Serpents; but the scales, instead of being arranged like tiles, are rectangular, forming transverse bands, which do not encroach on each other like those on the tails of ordinary Lizards. Chirotks, Cuv. Similar to Chalcides in their verticillate scales, and still more so to the Am- phisbsense in the obtuse form of their head; but distinguished from the former by the absence of hind feet, and from the latter by the presence of the an- terior feet. One species only is known, which is found in Mexico. ORDER III. OPHIDIA.(l) Serpents are reptiles without feet, and consequently those which best merit that appellation. Their extremely elongated body moves by means of the folds it forms when in contact with the ground. They are divided into three families. FAMILY I. ANGUINA.(2) The Angues still have an osseous head, teeth, and tongue, similar to those of a Seps; their eye is furnished with three lids, &c., and, in fact, if we may so express it, they are Seps without feet; they are all comprised in the genus Anguis, Lin. Characterized externally by imbricated scales, with which they are com- pletely enveloped. They have been separated into four subgenera; in the three first we still find beneath the skin the bones of the shoulder and pelvis. This genus is now subdivided into Pseudopus, Ophisaurus, Anguis proper, and Acontias. (1) OhisbjEN,e, as in the preceding reptiles, still has the lower jaw supported by a tympanal bone directly articulated with the cranium, the two branches of this jaw soldered together in front, and those of the upper one fixed to the cranium and to the inter- maxillary bone, circumstances which prevent that dilatation of the mouth which obtains in the succeeding tribe, and which occasions a uniformity of the head and body, a form which enables them to move backwards or forwards with equal facility. The bony frame of the orbit is incomplete behind, and the eye very small; the body is covered with scales, the trachea long, and the heart very far back. They are not venomous. They form two genera, one of which is allied to Chalcides and Chirotes, and the other to Anguis and Acontias. L.(l) The whole body surrounded with circular ranges of quadrangular scales, like the Chalcides and the Chirotes among the Saurians; a few conical teeth in the jaws, but none in the palate. There is but one lung. Two species have long been known, Amph. alba, Lacep., and Amph. fuli- ginosa, L., both from South America. They feed on Insects, and are often found in Ant-hills, which has occasioned a belief among the people that the large Ants are their purveyors. They are oviparous. (1) From and Ca.huv, walking both ways. The ancients attributed two heads to it. OPH1DIA. 189 The body covered with small imbricated scales like Anguis, with which they were long classed; the projecting muzzle furnished with plates; tongue long and forked; the eye resembling a point hardly visible through the skin; one of the lungs four times larger than the other. They are small Serpents, at the first glance resembling earth-worms; they are found in the hot por- tions of both continents. Typhlops, Sclin.(l) In the second tribe, that of the Serpentes, or Serpents properly so called, the tympanal bone or pedicle of the lower jaw is movable, and is itself always suspended to another bone, analogous to the mastoid process, attached to the cranium by muscles and ligaments, which allow it some motion. The branches of this jaw are not so closely united with each other, and those of the upper one are merely connected with the intermaxillary bone by ligaments, so that they can separate to a greater or less extent, which enables these animals so to dilate their mouths as to swallow bodies larger than themselves. Their palatine arches participate in this facility of motion, and are armed with sharp pointed teeth which curve backwards, the most predominant and constant character of the tribe. Their tra- chea is very long, their heart very far back, and most of them have but one large lung with a vestige of another. Serpents are divided into venomous and non-venomous; and the former are subdivided into such as are venomous with several max- illary teeth, and those which are venomous with insulated fangs. In such as are not venomous, the branches of the upper jaw as well as those of the lower one, and the palatine arches, are every where furnished with fixed and solid teeth; there are then four equal rows of these teeth in the upper part of the mouth, and two below. Tortrix, Oppel. Distinguished from Anguina, even externally, inasmuch as the scales which form the range along the belly and under part of the tail are a little larger than the others, and the tail itself is extremely short. They have but one lung. In those non-venomous Serpents, on the contrary, where the mastoid bones are detached, and the jaws are susceptible of great (1) Tt/4, tuqkivh, blind, were the names of the Anguis (slow-worm) among the Greeks. 190 REPTILIA. dilatation, the occiput is more or less enlarged, and the tongue forked and very extensible. They have long been divided into two principal genera, Boa and Coluber, distinguished by the simple or double plates on the under part of the tail. The genus Boa, Lin.(l) Formerly comprized all those Serpents, venomous or not, the under part of whose body and tail is furnished with uninterrupted, transverse scaly bands, and which have neither spur nor rattle at the end of the tail. As they are rather numerous, even after deducting the venomous species, the others have been again subdivided. The Boa, properly so called, has a compressed body, thickest in the middle, a prehensile tail, and small scales on the head, at least on its poste- rior portion. It is in this genus that are found the largest Serpents on the globe; certain species attain a length of thirty or forty feet, preying on Dogs, Deer, and even Oxen, which they manage to swallow entire, after having crushed them in their folds and covered them with saliva. This operation requires much time and an enormous dilatation of their jaws and throat. Their small lung is but half the length of the other. Boa constrictor, L. Known by a broad chain, which extends along the back, formed alternately by large, blackish, irregularly hexagonal spots, and by pale oval ones, the two ends of which are emarginate. The celebrated Anaconda is a true Boa. Coluber, Lin. This genus comprised all those Serpents, venomous or not, whose sub-cau- dal plates are divided in two, that is, which are arranged by pairs. Independently of the subtraction of the venomous species, their number is so enormously great, that naturalists have had recourse to all sorts of characters to subdivide them. In the subgenus Python we find the Col. javanicus, Sh., which has been found thirty feet in length. Sunda Islands. Serpents which are venomous par excellence, or those with iso- lated fangs, have their organs of manducation constructed on a very peculiar plan. Their superior maxillary bones are very small, attached to a long (1) Boa, the name of certain Italian Serpents of great size, most pro- bably the four striped Coluber, or “ Serpent of Epidaurus” of the Latins. Pliny says they were thus named, because they sucked the teats of Cows. The Boa, 120 feet long, which it is pretended was killed in Africa by the army of Regulus, was probably a Python. See Pliny, lib. VIII, cap. xiv. OPH1DIA. 191 pedicle, analogous to the external pterygoid apophysis of the sphenoid bone, and are very movable; in them is fixed a sharp pointed per- vious tooth, through which flows a liquor secreted by a large gland, situated under the eye. It is this liquor which, poured into the wound made by the tooth, produces effects, more or less violent, according to the species of the reptile in which it is secreted. This tooth, when the animal does not wish to use it, is concealed in a fold of the gum, and behind it are several germs destined to replace it, in the event of its being broken in a wound. These venomous teeth have been termed by naturalists movable fangs, but in fact it is the maxillary bone which moves; there are no other teeth in it, so that in this kind of dangerous serpents only the two rows of palatine teeth are to be seen in the upper part of the mouth. All these venomous species, whose mode of production is well known, bring forth living young ones, as their eggs are hatched without being laid, from which circumstance is derived their com- mon name of Vipers, a contraction of viviparous. Venomous serpents with isolated fangs have external characters very similar to those of the preceding ones, but in the greater num- ber the jaws are very dilatable, and the tongue very extensible. The posterior portion of their head being broad, generally gives them a ferocious aspect, which is a partial indication of their disposition. They form two great genera, Crotalus and Vifera, the second of which has been variously subdivided, and some smaller ones which group around them. Crotalus, Lin. Rattlesnakes are pre-eminently conspicuous for the intensity of their venom. As in Boa, there are transverse simple plates under the body and tail; but their most distinguishing character is the rattle which terminates the tail. It is formed by several scaly cornets loosely fitted into each other, which move and produce the peculiar noise from which they receive their name when- ever they crawl or shake that part of the body. The number of these cor- nets increases with age, an additional one being always found after each moult. There is a little round indentation or pit behind each nostril. All the species whose habitat is well ascertained are from America. The dan- ger resulting from the bite of these noxious reptiles is in proportion to the warmth of the climate or of the season; their natural disposition, however, is tranquil, and they are rather slow and heavy in their motions, never bi- ting unless provoked, or to kill the prey on which they feed. Their principal food consists of Birds, Squirrels, &c. It has long been supposed that it possesses the faculty of rendering them powerless by its 192 REPTILIA. breath, or even of charming them, a9 it is called, by which they are com- pelled to leap into its mouth; this, however, is not so, and the reptile in question seizes its prey while under the agitation and terror produced by its appearance. In most of the species there are scales on the head similar to those on the back. The C. horridus or the Diamond Rattlesnake, the C. durissus or the Banded Rattlesnake, and the C. miliaris or the Ground Rattlesnake, a smaller species, but the most dangerous of the three, all inhabit the United States. The most common is the durissus,■ the miliaris, although furnished like the others with an apparatus of three or four cornets at the end of the tail, can make no noise with them. The plates on the head are arranged as in the genus Coluber. Vipera, Daud. The Vipers, most of which were confounded with the Colubers by Linnaeus, on account of their double sub-caudal plates, require to be separated from them from the circumstance of their having poisonous fangs. There are also some serpents which naturally belong to this division, whose sub-cau- dal plates are either wholly or partially simple- They are all distinguished from the Rattlesnakes by the absence of the pits behind the nostrils. Vip. brachyura, Cuv. (The Minute Viper.) The intensity and activity of its poison render it one of the most terrible of the genus. The genus of the Vipers is now variously subdivided. To one of these subgenera, Naia, belongs the celebrated Col. haje, L. Greenish bordered with brownish. The jugglers of Egypt, by pressing on the nape of the neck with their finger, throw it into a kind of catalepsy which renders it stiff and immovable, or turns it into a rod, as they term it. Its habit of raising itself up when approached, induced the ancient Egyptians to believe that it was the guardian of the fields it inhab- ited. They made it the emblem of the protecting divinity of the world, and sculptured it on each side of a globe upon the gates of their temples. It is indubitably the serpent described by the ancients under the name of the Asp of Egypt, Asp of Cleopatra, &c. In addition to these two tribes of Serpents, properly so styled, a third has lately been recognized, in which the organization and ar- mature of the jaws are nearly the same as in the non-venomous ser- pents, but where the first maxillary tooth, larger than the others, is perforated for the transmission of the poison, as in the venomous serpents with isolated fangs. These Serpents form two genera, Bungarus and Hydrus, dis- tinguished, like those of the two neighbouring families, by the cover- ing of the abdomen and the under part of the tail. OPHIDIA. 193 FAMILY III. NUDA. Our third and last family of the Ophidians, that of the Naked Ser- pents, consists of but one very singular genus, which several natu- ralists have thought fit to refer to the Batrachians, although we are ignorant as to the fact of its undergoing any metamorphosis. It is the So called because its eyes, excessively small, are nearly hidden beneath the skin, and sometimes are wanting. The skin is smooth, viscous and fur- rowed by annular plaits or wrinkles; it is apparently naked, but on dissec- tion we find in its thickness, perfectly formed though delicate scales, regularly arranged in several transverse rows between the folds of the skin. Cjecilia, Lin.(l) ORDER IV. BATRACHIA. (2) The Batrachians have a heart composed of but one auricle and one ventricle. They all have two equal lungs, to which at first are added branchiae, that have some affinity with those of Fishes, and which have cartilaginous arches on each side of the neck attached to the hyoid bone. Most of them lose these branchiae, and the ap- paratus which supports them, when they attain a state of maturity. Three genera only, Siren, Proteus, and Menobranchus, retain them for life. As long as these brancliia remain, the aorta is divided at its origin into as many branches on each side as there are branchiae. The branchial blood is brought back by veins which unite near the back in one arterial trunk, as in Fishes. It is from this trunk, or imme- diately from the veins which form it, that arise most of the arteries (1) Csccilia, from top\«4> is the Latin name of the Slow-worm (Orvet), which in several parts of Europe is still called blind, although it has very fine eyes. (2) From (Frog), animals analogous to Frogs. 194 REPTILIA. which nourish the body, and even those which conduct the blood to be oxygenated in the lungs. In those species, however, which lose their branchiae, the attend- ant arteries are obliterated, with the exception of two, which unite in a dorsal artery, giving, each, a small branch to the lungs. It is the circulation of a Fish metamorphosed into that of a Reptile. Batrachians have neither scales nor shell; a naked skin invests their body, and, one genus excepted, they have no nails. The envelope of the ova is membranous. These eggs become greatly enlarged in the water. The young do not only differ from the adult in the presence of the branchias; their feet are developed by degrees, and in several species there are a beak and tail, which they subsequently lose, and intestines of a different form. Some species are viviparous. Frogs have four legs in their perfect state, but no tail. Their head is flat, muzzle rounded, and the opening of their jaws large; the tongue, in most of them, is soft, and not attached to the bottom of the gullet, but to the edges of Hie jaw, and folds inwards. There are but four toes to the anterior feet; the hind ones frequently exhibit the rudiment of a sixth. There are no ribs to their skeleton, and a prominent cartilaginous plate supplies the place of a tympanum, and renders the ear visible externally. The eye is furnished with two fleshy lids, and a third, which is transparent and horizontal, concealed under the lower one. The hind feet of the Tadpole are very gradually and visibly developed; the fore feet are also developed, but under the skin, through which they subsequently penetrate. The tail is gradually absorbed. The beak falls and discloses the true jaws, which at first were soft and concealed beneath the skin; and the branchiae are annihilated, leaving to the lungs alone the function of respiration in which they participated. The eyes which at first could only be discerned through a transparent spot in the skin of the Tad- pole, are now visible with their three lids. Tadpoles reproduce their limbs almost like Salamanders. The period at which each of these changes takes place varies with the species. In cold and temperate climates, the perfect animal passes the winter un- der ground, or in the mud under water, without eating or breathing, though if we prevent it from respiring during the summer for a few minutes by keeping its mouth open, it dies. Rana, Lin. Tree-Frogs only differ from Frogs in the extremities of their toes, each of which is expanded into a round, viscous pellet, that enables them to adhere Hxla, Laur. BATRACHIA. 195 to the surface of bodies and to climb trees, where in fact they remain all summer, living upon insects. They spawn, however, in water, and enter the mud in water like other Frogs. There is a pouch under the throat of the male, which dilates whenever he cries. Rana arborea, L. (The Common Tree-Frog.) Green above, pale be- neath; a black and yellow line along each side of the body. They are adult in four years. The Tadpole completes its metamorphosis in the month of August. Buro, Laur. Toads have a thick, bulky body covered with warts or papillae; a thick lump behind the ears pierced with pores, from which issues a milky and fetid humour; no teeth; the hind feet but slightly elongated. They leap badly, and generally avoid the water. They are hideous and disgusting animals, whose bite, saliva, &c., are considered, though erroneously, as poi- sonous. There are now several subgenera, such as Rhinellus, Otilophis, Pipa, &c. Salamandra, Brongn. Salamanders have an elongated body, four feet and a long tail, which gives them the general form of Lizards, with which Linnaeus placed them: but they have all the characters of Batrachians. In their adult state, respiration is performed as in Frogs and Tortoises. Their tadpoles at first breathe by means of branchiae resembling tufts, three on each side of the neck, which are subsequently obliterated; they are sus- pended to cartilaginous arches, vestiges of which remain in the hyoid bone of the adult. A membranous operculum covers these openings, but the tufts are never enclosed by a tunic, and always float externally. The fore feet are developed before the hind ones; the toes appear successively in the first and the last. Saxamandra, Laur. The terrestrial Salamanders in a perfect state have a round tail, and in- habit the water only during their tadpole condition, which is but a short period, or when the female is ready to bring forth. The eggs are hatched in the oviduct. Aquatic Salamanders always retain the vertically compressed tail, and pass nearly the whole of their existence in the water. The experiments of Spallanzani on their astonishing power of reproduction, have rendered them celebrated. If a limb be amputated, another is reproduced in its stead with all its bones, muscles, vessels, &c. and this takes place several times in succession. Another not less singular faculty, discovered by Dufay, is the power they possess of remaining enclosed in ice for a considerable time without perishing. Triton, Laur. 196 REPTILIA. Skeletons of a salamander three feet in length have’ been discovered among the schist of CEningen. One of them is the pretended Fossil Man of Scheucher. Immediately after the Salamanders come several very similar ani- mals, some of which are considered as having been always destitute ofbranchi®, that is, they probably lose them at as early a period as our terrestrial Salamanders; the others, on the contrary, retain them for life, a circumstance, however, which does not prevent their hav- ing lungs like the Batrachians, so that they may be considered as the only vertebrate animals which are truly amphibious. The former (those in which no branchi® are visible) constitute two genera. Form of a Salamander; eyes apparent, the feet well developed, and an ori- fice on each side of the neck. Besides the range of small maxillary teeth, there is a parallel row of them on the front of the palate. Such is the rep- tile termed Sal. gigantea, Barton. (The Hellbender.) From fifteen to eighteen inches long; a blackish blue; inhabits the lakes and the rivers of the inte- rior of North America. Menopoma, Harlan. An orifice on each side of the neck, but the body excessively elongated; the legs and feet, on the contrary, but very slightly developed; the palatine teeth form two longitudinal ranges. Among those which always retain their branchiae, the Amphiuma, Garden. Axolotus Is in every respect similar to the larva of an aquatic Salamander, having four toes before, five behind, three long tufted branchiae, &c. The maxil- lary teeth are like velvet, and those on the vomer in two bands. But four toes to all the feet; a range of teeth in the intermaxillaries, and an- other, parallel, but more extended, in the maxillaries. The species most known, Menobranchus lateralis, Harl.; Triton lateralis, Say, inhabits the great lakes of North America, attaining, as it is said, the length of two and three feet. It was first obtained from Lake Champlain. Menobranchus, Harl. Proteus, Laurent. But three toes before and only two behind. Hitherto but a single species has been discovered, Proteus anguinus, BATRACHIA. 197 Laur. More than a foot long, about the thickness of a finger, with a verti- cally compressed tail and four small legs. Finally, there are some which are possessed of fore feet only, the hind ones being entirely deficient. They form the genus Sieen, Lin. Sirens are elongated animals, almost anguilliform, with three branchial tufts; they have no hind feet, nor is there even a vestige of a pelvis. Their head is depressed, the opening of their mouth small, their muzzle obtuse, eye very small and ear concealed; the lower jaw is armed with teeth all round, and there are none in the upper one, but there are several rows of them ad- hering to two plates fixed under each side of the palate. S. lacertina, L. Blackish, and attains the length of three feet; four toes to each foot; tail compressed into an obtuse fin. It inhabits the marshes of Carolina, the rice swamps particularly, where it lives in the mud, occasion- ally going on shore or into the water. It feeds on lumbrici, insects, &c. There are two much smaller species. CLASS IY. PISCES. The class of Fishes is composed of oviparous Yertebrata with a double circulation, but in which respiration is altogether effected through the medium of water. For this purpose, on each side of the neck, they have an apparatus called branchiae, or gills, which consist of laminae suspended on arches that are attached to the hyoid bone, each composed of numerous separate laminae and covered with a tissue of innumerable blood-vessels. The water which the fish swallows, escapes between these laminae through the branchial openings, and by means of the air it contains, acts upon the blood that is continually arriving in the branchiae from the heart, which only represents the right auricle and ventricle of warm-blooded animals. This blood, having received the benefit of respiration, is poured into an arterial trunk situated under the spine, which, exercising the functions of a left ventricle, distributes it to every part of the body, whence it returns to the heart by the veins. The entire structure of the Fish is as evidently adapted for natation, 198 PISCES. as that of the Bird for flight. Suspended in a liquid of nearly the same specific gravity as its own body, there was no necessity for large wings to support it. In a great number of species, immedi- ately under the spine there is a bladder filled with air, which, by compression or dilatation, varies the specific gravity of the fish and assists it to rise or descend. Progression is effected by the motions of the tail, which, by striking the water alternately right and left, forces them forward; the branchias, by impelling the water back- wards, may also contribute to this effect. The limbs being thus of but little use, are greatly reduced; the parts analogous to the bones of the arms and legs are extremely short, or even completely con- cealed; rays, more or less numerous, which support membranous fins, form a rude representation of the fingers and toes. The fins which correspond to the anterior extremities are termed pectorals, and those which answer to the posterior ones, ventrals. Other rays attached to particular bones placed on or between the extremities of the spinous apophyses support vertical fins on the back, under the tail, and at its extremity, which, by being raised or lowered, increase or diminish the surface which strikes against the water. The su- perior fins are called dorsal, the inferior anal, and that at the end of the tail caudal. The rays are of two kinds; some of them consist of a single bony piece, usually hard and pointed, sometimes flexible and elastic, divided longitudinally—these are called spinous rays; others are composed of a great number of small articulations, and generally divided into branches at their extremity—they are the soft, articulated, or branched rays. There is as much variety among Fishes, with respect to the number of limbs, as among Reptiles. Most generally there are four; some have but two, and in others they are totally wanting. The bone which is analogous to the scapula, is sometimes held among the muscles as in the higher animals, and at others is attached to the spine, but most commonly it is suspended on the cranium. The pelvis rarely adheres to the spine, and very frequently, instead of being behind the abdomen, is before it, and connected with the hu- meral apparatus. Besides the usual parts of the brain which are arranged as in Reptiles one after the other, Fishes have knots or ganglions at the base of their olfactory nerves. Their nostrils are simple cavities at the end of the muzzle almost PISCES. 199 always perforated by two holes, and regularly lined by a plated pi- tuitary membrane. The cornea of their eye is very flat, and there is but little aqueous humour, but the crystalline is very hard and almost globular. The sense of taste in Fishes can have but little energy, as a great portion of the tongue is osseous, and frequently furnished with teeth and other hard parts. The body in most of them is covered with scales, and none pos- sess organs of prehension; the fleshy cirri of some may supply the imperfection of the other organs of touch. Teeth are found in their intermaxillary, maxillary, lower jaw, vomer, bones of the palate, on the tongue, on the arches of the branchiae, and even on bones behind these arches, attached like them to the hyoides, called pharyngeal bones. The varieties of these combinations, as well as those of the form of the teeth placed at each point, are innumerable. Besides the apparatus of the branchial arches, the hyoid bone is furnished on each side with rays which support the branchial mem- brane. A sort of lid composed of three bony pieces, the operculum, the suboperculum, and the interoperculum, unites with this membrane in closing the great opening of the gills; it is articulated with the tympanal bone, and plays on one called the preoperculum. In many of the Chondropterygii this apparatus is wanting. Fishes form two distinct series, that of Fishes properly so styled, and that of the Chondropterygii, otherwise called Cartilaginous Fishes. ORDER I. AC ANTHOPTER YGII. (1) The Acanthopterygii form the first and by far the most numerous division of ordinary Fishes. They are recognized by the spines which occupy the place of the first rays of their dorsal, or which alone support the first fin of the back, where there are two; sorne- (1) Spiny-fins. 200 PISCES. times, instead of a first dorsal, there are only a few free spines. The first rays of their anal are also spines, and there is generally one to each ventral. FAMILY I. PERCOIDES. This family is so called because its type is the Common Perch. It comprehends fishes with oblong bodies, covered with scales that are generally hard or rough, and whose operculum or preopercu- lum, and frequently both, have dentated or spinous edges, and whose jaws, the fore-part of the vomer, and generally the palatine bones, are furnished with teeth. The species are extremely numerous, particularly in the seas of hot climates; their flesh is generally wholesome and agreeable. In the first subdivision we find seven rays in the branchiae, two fins on the back, and all the teeth small and crowded. The true Perches have the preoperculum dentated; the bony operculum terminated by two or three sharp points and a smooth tongue. Sometimes the sub-orbital and the humeral are slighty dentated. North America pro- duces several species. Pekca, Cuv. Labrax, Cuv. Distinguished, from the Perches by scaly opercula terminating in two spines, and by a rough tongue. The United States produce a large and beautiful species, Labr. lineaius, Cuv. (The Ltock-fish), with longitudinal blackish stripes. The remaining genera of this division are Lates, Centropomus, Grammis- tes, Aspro, &c. &c. differing in various particulars relative to the operculum and preoperculum, armature of the jaws, &c. A second subdivision comprises Percoides with two dorsal fins, and long and pointed teeth mingled with the small and crowded ones. There are two genera, Ambassis, Lucio-Perca or Perch-Pike. A second division comprises Percoides with seven branchial rays and one dorsal. They are subdivided in nearly the same way ACANTHOPTERYGII. 201 as the preceding ones, as by their teeth which are either hooked or all small and crowded; notches and spines on the opercula, &c. In the subdivision, furnished with hooked teeth, we find, Serranus, Cuv. Preoperculum dentate; the bony operculum terminating in one or several points. This genus contains a vast number of species, and is divided into several subgenera. We now pass to Percoides with seven branchial rays, and a sin- gle dorsal, the teeth small and crowded. They are distributed under the genera Acerina, JRypticus, Centropristis (to which belongs our Black Perch) and Gristes. The genus Perca, as defined by Artedi and Linnasus, terminates here; but there remains a number of fishes which approach it, al- though peculiar characters compel naturalists to arrange them in separate genera, such as Cirrhites, Chironemus, Pomotis, (our Pond- Perch) Centrarchus, &c. &c. PoMOTIS, Cuv. Fishes, with a compressed and oval body, characterized by a membranous prolongation at the angle of the operculum. They inhabit the rivers, &c. of America, where they are called Pond-Perch. We now pass to those Percoides which have more than seven rays to the branchiae. Three genera are known, all of which pre- sent the following peculiarity: their ventrals have a spine and .seven or more soft rays, while in other Acanthopterygii there are never more than five soft rays. Holocentrum, Artedi. The scales of these beautiful fishes are brilliant and dentated; operculum dentated and spinous; preoperculum dentated with a stout spine at the an- gle, which is directed backwards. They are found in the hot parts of both oceans. The brilliancy, shape and scales of the Holocentra, but the preoperculum has a dentated double border, and there is no spine at the angle. They in- habit the hot parts of both oceans. v, Myripristis, Cuv. 202 PISCES. Beryx, Cuv. Differs from Myripristis in having but a single short dorsal, with but a few small spines, almost hidden in its anterior edge; ten soft rays in the ventrals. All the Percoides of which we have hitherto spoken, have their ventrals inserted under the pectorals; there are some genera, how- ever, in which they are differently located. In the Jugulares, they are placed on the throat further forwards than the pectorals. Trachinus, Lin. A compressed head, approximated eyes, and an oblique mouth; the first dorsal very short, the second very long; pectorals large, and a stout spine on the operculum. They generally remain concealed in the sand; wounds inflicted by the spines of their first dorsal are much dreaded, but their flesh is esteemed. Several species are found in the Atlantic, &.c. Track, draco, L. (The Dragon Weaver.) Grey and reddish, with blackish spots; blue streaks and yellow tints; thirty rays to the second dor- sal; flanks obliquely striated. One of the most remarkable genera of the Jugulares is that of Uranoscopus, Lin. So called because the eyes are placed on the superior surface of the nearly cubical head, and look upwards: the mouth is cleft vertically; the lower part of the preoperculum is crenate, and there is a stout spine to each shoulder; but six rays in the branchiae. In the mouth and before the tongue is a long and narrow slip, which can be protruded at the will of the fish, and serves, it is said, to attract small ones, while it remains concealed in the mud. They are commonly termed Star-gazers. In a third division of the Percoides, the ventrals are inserted fur- ther back than the pectorals: they are the Abdominales. The first genus is So named because several of the inferior pectoral rays are free, and form so many filaments; the ventrals are not very far back, and the pelvis is still suspended to the bones of the shoulder. They are allied to the Percoides by the teeth, either small and crowded, or bent back like those of a wool- card, which arm their jaws, vomer, and palate; but their snout is convex, and the vertical fins scaly as in many of tire Scienoides: the two dorsals are separated, the preoperculum is dentated and the mouth deeply cleft: they are found in all the seas of hot climates. Pol. paradiseus, L. (The Mango Fish.) So called from its fine yellow PoLYNEMUS, L. ACANTHOPTERYGII. 203 colour: has seven filaments on each side, the first of which are twice the length of the body. It is the most delicious fish found in Bengal. In the succeeding genera the ventrals are altogether behind, and the pelvis no longer adheres to the bones of the shoulder. The genera are Sphyrsma, Paralepis, and Mullus, (or the Surmullet of Europe.) FAMILY II. BUCCiE LORICATE. The family of the Mailed-Cheelcs, contains a numerous suite of fishes to which the singular appearance of their head, variously mailed and protected, gives a peculiar aspect that has always caused them to be arranged in special genera, although they have many close affinities with the Perches. Their common character consists in the sub-orbital being more or less extended over the cheek and articulated behind with the preoperculum. The Uranoscopus is the only one of the preceding family which has any thing like it, but the sub-orbital of the latter, although very broad, is connected be- hind with the temporal bones, and not with the preoperculum. Linnaeus divided them into three genera, Trigla, Cottus, and it has been found necessary, however, to subdivide them, and to add some of his Gasterostei. Trigla, Lin. The above character strongly marked; an enormous sub-orbital completely covering the cheek, and even articulated by an immovable suture with the preoperculum, so as to allow of no separate motion; sides of the head nearly vertical, giving it a form approaching that of a cube, or parallelopiped, the bones hard and rough. There are two distinct dorsals, and three free rays under the pectoral. Several species, when caught, utter sounds which have procured for them in France their vulgar name of Grondins,- in Eng- land they are called Gurnards. The best of these divisions is the Dactylopterus, Lacep. So celebrated under the name of Flying Fishes; the subpectoral rays are much more numerous and longer; and intead of being free, as in the prece- ding ones, they are united by a membrane so as to form a supernumerary 204 PISCES. fin, longer than the fish, which supports it in the air for some time. Thus they are seen flying above the surface of the water, in order to escape from Dolphins and other varacious fishes; they fall into it again, however, in a few seconds. D. volitans, the Mediterranean species, is a foot long; brown above; reddish beneath; fins black, variously marked with blue. I). orientalis, Cuv., is a neighbouring species from the Indian Ocean. Cottus, Lin. Head broad, depressed, mailed, and variously armed with spines or tuber- cles; two dorsals; teeth front of the vomer, but none on the palatines; six rays in the branchiae, and only three or four in the ventrals. The inferior pectoral rays, as in Trachinus, are not branched. Those that inhabit fresh water have a nearly smooth head, and but one spine to the preoperculum; their first dorsal is very low. The most com- mon species is C. gobio, L. (The River Bull-head.) A small blackish fish, four or five inches in length. The salt water species are more spinous, and when irritated their head becomes still more inflated. Such is C. scorpius, L. (The Father-Lasher.) Three spines on the preoper- culum. Other groups have lately been observed, which are partly allied to Cottus and partly to Scorpaena. One of them is the Hemitkiftertjs, Cuv. The head depressed, and two dorsals as in Cottus; no regular scales on the skin, but teeth in the palate. The head is bristly and spinous, and has seve- ral cutaneous appendages. The first dorsal is deeply emarginate, a circum- stance which has led some authors to believe they had three. But one species is known, (from North America,) Cottus tripterygius, which is taken along with the Cod. From one to two feet long, tinged with yellow and red, varied with brown. The head, like that of a Cottus, mailed and roughened, but compressed on the sides; body covered with scales; several rays in the bran chi a, and but a single dorsal. If we except the armature of the cheek, and the tubercles, which frequently give them an odd appearance, they closely approximate to certain Percoides, such as the Acerinse and the Centropristes; but though the inferior rays of their pectorals, as in Cottus, are articulated, they are simple and not branched. The remaining genera allied to or separated from Scorpasna are Pterois, Blepsias, Apistus, Agriopus, Pelor, Gasterosteus (Stickle-backs of Europe) and the Scorp.ena, Lin. ACANTHOPTERYGII. 205 Monocentris, Bl. Schn. A singular genus; the body is short, thick, and completely mailed with enormous angular, rough, and carinated scales; four or five stout free spines supply the place of the first dorsal; each ventral consists of an immense spine, in the angle of which a few soft and almost imperceptible rays are concealed; head bulky and mailed; front gibbous; mouth large; short crow- ded teeth in the jaws and palatines, but none in the vomer; eight rays in the branchiae. But one species is known; the Mon. japonica, Bl. Schn. Six inches long, of a silvery white. From the sea of Japan. After this family we place the A small oval fish, whose whole body, above and beneath, is studded with thick cones of a heavy substance. There are four of them on the back, and ten on the belly, arranged in two series, with smaller intermediate ones. It was discovered in the Atlantic, by Peron. Oreosoma, Cuv. FAMILY III. SCIENOIDES. This family is closely related to the Percoides, and even presents nearly similar combinations of external characters, particularly in the indentations of the preoperculum, and in the spines of the opercu- lum; but both vomer and palatines are without teeth; the bones of the cranium and face are generally cavernous, and form a muzzle more or less gibbous. The vertical fins are frequently somewhat scaly. Some of the Scienoides have two dorsals, and others have but one; among the former we first find the genus, ScIjENA. Whose common characters consist of a gibbous head, supported by caver nous bones, two dorsals, or one deeply emarginate, whose soft part is much longer than the spinous; a short anal, a dentated preoperculum, an operculum terminating in points, and seven branchial rays. If it were not for the absence of the palatine teeth, these fishes would resemble the Perches. Naturalists divide it into various subgenera. Some of the species, such as the King-fish (an Umbrina) inhabit the American seas. The Scienoides, with a single dorsal, are subdivided according to the number of their branchial rays. 206 PISCES. These divisions are Haemulon, Pristoma, and Diugramma. The Scienoides with a single dorsal and less than seven branchial rays, are still more subdivided: in some of them the lateral line ex- tends to the caudal; in others it is interrupted. Those Scienoides which have less than seven branchial rays and an interrupted lateral line, form several genera of small oval fishes, prettily coloured, which may be distinguished by the armature of their head. They are manifestly related to the genus Chastodon, and resemble, externally, several of our fishes with labyrinthian branchiae. The genera are Amphiprion, Premnas, Pomaeentrus, &c. FAMILY IY. SPAROIDES. The Sparoides, like the Scienoides, have a palate destitute of teeth. Their general figure and several details of their organization are the same; they are also covered with scales more or less large, but they have none on the fins. Their muzzle is not gibbous, nor are the bones of their head cavernous; there are neither indentations in their preoperculum, nor spines on their operculum. They never have more than six rays in the branchiae. They are divided accord- ing to the form of their teeth. In the first tribe, that of Sparus, Cuv. the sides of the jaws are furnished with round molars like paving-stones; we subdivide it into Sargus, Pagrus, Chrysophris, and Pagelus, differing in certain dental pecu- liarities. The celebrated Sheephead of the Philadelphia market belongs to the first named genus. In the second tribe there is but one genus, Dentex, Cuv. Characterized by conical teeth even on the sides of the jaws, generally in one range, some of the anterior of which are drawn out into large hooks. They would be rather closely allied to the genus Haemulon, were it not that the indentation of tire preoperculum is wanting, and that they have one ray less in their branchiae. The cheek is scaly. Two species are found in the Mediterranean. ACANTHOPTERYGII. 207 A third tribe is also composed of a single genus, Cantharus, Cuv. Teeth short and crowded, or bent and crowded all round the. jaws: those of the external row being the strongest; body elevated and thick; muzzle short; jaws not protractile. Two species are found in the Atlantic and Mediterranean. 4 In a fourth tribe the teeth are trenchant. It comprises two genera, Boops and Oblada. FAMILY V. MENIDES. The Menides differ from the preceding families in the extreme ex- tensibility and retractility of their upper jaw, which is owing to the length of the intermaxillary pedicles which withdraw between the orbits. Their body is scaly, as in Sparus, in which genus they have hitherto been placed. There are four genera: viz. Mxna, Smaris, Cassio and Gerres. FAMILY VI. SQUAMIPENNES. So called, because the soft, and frequently the spinous parts of their dorsal and anal fins are covered with scales, which encrust them, as it were, and render it difficult to distinguish them from the mass of the body. This is the most remarkable character of these fishes, the body of which is generally much compressed, and the in- testines long. They were comprised by Linnasus in the genus Ch^todon. So named from their teeth, which in length and tenuity resemble hairs, col- lected in several close rows like a brush. Their mouth is small; their dorsal and anal fins are so completely covered with scales similar to those on the back, that it is extremely difficult to ascertain where they commence. These fishes are very abundant in the seas of hot climates, and are adorned with the most beautiful colours, circumstances which have caused many to be 208 PISCES. figured, and rendered them common in our cabinets. They frequent rocky shores, and are eaten. This genus is now divided into various subgenera, the most remarkable of which is Chelmon, Cuv. Separated from Chactodon on account of the extraordinary form of the snout, which is long and slender, only open at the extremity, and formed by a most excessive prolongation of the intermaxillary and lower jaw. Their teeth are very fine and crowded, rather than like hairs. One species, Cliset. rostratus, L., has the faculty of spurting drops of water on the insects it perceives on the shore, and thus bringing them within reach. It is a common pastime of the Chinese at Java. The following genera, which we place next to Chretodon on ac- count of their scaly fins, differ greatly from it, however, in the teeth with which their palatines and vomer are furnished. The genus Is connected with this family by the scales covering the vertical fins, which have but a small number of spinous rays concealed in their anterior edges; but they have slender, bent teeth in the jaws and palatines, an elevated profile, very short snout, a forehead descending vertically, and a mouth, when shut, that is almost vertical; the scales extend on to the maxillaries; there are seven rays in the branchiae; a dorsal and low anal, but commencing in a salient point. But one species is known, Sparus Raii, Bl., it inhabits the Mediterranean, and sometimes strays into the ocean; an excellent fish, of a burnished steel colour, which attains a large size, but is infested with various species of in- testinal worms. Brama, Bl. Schn. A long and scaly anal, the dorsal short and elevated; head obtuse; the eye large; a small spine on the operculum; small crowded teeth on the jaws, vomer and palatines. From the Indian Ocean. Pemtheris, Cuv. The body short and compressed, the dorsal placed on the last half of the body, with very stout spines, the soft part, as well as that of the anal which corresponds to it, scaly; the snout depressed, short; lower jaw projecting beyond the upper one; the small crowded teeth very short in both jaws, the extremity of the vomer, palatines, pterygoids, and on the tongue; six rays in the branchiae, inferior edge of the infra-orbital and preoperculum, finely serrate. Toxotes, Cuv. ACANTIIOPTERYGII. 209 The species known, Toxotes jaculator, Cuv., is celebrated for the same faculty that distinguishes the Chxt. roslratus. By spurting drops of water on Insects which frequent aquatic plants, they are beaten down and brought within its reach. It can force the water to a height of three or four feet, and rarely misses its aim. FAMILY VII. SCOMBEROLDES. Our seventh family is composed of a multitude of fishes with small scales, a smooth body, and whose tail and caudal fin in particular are extremely powerful. This family is of the greatest utility to man, by the size and fla- vour of its species, and their inexhaustible reproduction, which brings them periodically into the same latitudes, where they constitute the object of the most extensive fisheries. Scomber, Lin. The first dorsal entire, while on the contrary, the last rays of the second, as well as those of the anal which correspond to them, are detached, forming what are termed false or spurious fins, ov pinnse spurise. The genus is sub- divided as follows: Scomber, Cuv. The Mackerels have a fusiform body covered with uniformly small and smooth scales; two little cutaneous crests on the sides of the tail; an empty space between the first and second dorsal. Sc. scombrus, L. (The Common Mackerel.) Blue back, varied with black, undulating streaks; five false fins above and beneath. Thxnnus, Cuv. A soft corslet round the thorax, formed by scales larger and smoother than those on the rest of the body; a cartilaginous carina between the two little crests on the sides of the tail; the first dorsal extends close to the second. Sc. thynnus, L. (The Tunny.) This fish has been taken in the Mediter- ranean, from a very ancient date, and by its abundance constitutes a great source of wealth to Provence, Sardinia, Sicily, &c. It is said to attain the length of fifteen and eighteen feet, and has nine spurious fins above, and as many beneath; the pectorals are one-fifth of its whole length. There are some other subgenera. 210 PISCES. These fishes belong to the family of the Scomberoi'des, and approach the Tunnies particularly, in their excessively small scales, in the carinx on the sides of their tail, in the power of their caudal fin, and in their whole internal organization. Their distinguishing character consists in the beak, (whence their name of Sword-fish,) or ensiform point or tusk, which terminates their upper jaw; a powerful weapon, with which they attack the largest sea ani- mals. This beak is chiefly composed of the vomer and intermaxillaries, being strengthened at its base by the xthmoid, frontals, and maxillaries. Their branchise are not pectinated; each of them being formed of two large parallel laminae, the surface of which is reticulated. They swim with aston- ishing swiftness, and their flesh is excellent. Xiphias gladius, L. (The Sword-Fish.) The point horizontally flattened and trenchant like the broad blade of a sword; sides of the tail strongly cari- nated. It has but one dorsal, which rises from before and from behind; the middle of it becoming worn with age gives it the appearance of being double. It is one of the largest and best fishes of the European seas, frequently at- taining the length of fifteen feet. It is more common in the Mediterranean than in the Atlantic Ocean. A parasitic crustaceous animal penetrates into its flesh and sometimes renders it so furious that it dashes itself on shore. Xiphias, Lin. Centronotus, Lacep. A genus of Scomberoides characterized by the spines, which, in the Acan- thopterygii in general, form the anterior portion of the dorsal, or a first separate dorsal, but in them are free and unconnected by a common mem- brane; they all have ventrals. They are subdivided into four sub genera. In Nauchates, Rafin. The dorsal spines are free; body fusiform; a carina in the sides of the tail as in the Tunny, and two free spines before the anal fin. The common species is blue with broad vertical bands of a much deeper blue. The vulgar name of Pilot-Jish owes its origin to the fact, that it follows vessels to seize upon what may fall from them; and as a similar habit is ob- served in the Shark, it has been said that the former acts as a guide or pilot to the latter; it is not above a foot long. There are various other genera belonging to this family, such as Rhyn- chobdella, Notacanthus, Seriola, Nomeus, Caranx, Vomer, Zeus (The Com- mon Dory), &c. &c. ACANTHOPTERYGII. 211 FAMILY VIII. TJENIOIDES.(l) This family is closely connected with the Scomberoides, and its first genus is even intimately allied with Gempilus and Thyrsites; the fishes which compose it are elongated, flattened on the sides, and have very small scales. In the first tribe we find the muzzle elongated, the mouth cleft and armed with strong, pointed and trenchant teeth, and the lower jaw advancing beyond the upper one: it comprises but two genera, Lepidopus, Gouan. Whose special character consists in the reduction of the ventrals to small scaly plates. The thin and elongated body is furnished with a dorsal above, which extends throughout its length, with a low anal beneath, and terminates in a well formed caudal; there are eight rays in the branchise. The same form of body, muzzle, and jaws, as in Lepidopus; similar pointed and trenchant teeth, and a dorsal extending along the back, but the ventrals and caudal are wanting, and the tail is drawn out into a long, slender, and compressed filament. In lieu of the anal there is merely a suite of small and hardly perceptible spines on the under edge of the tail; the branchiae have but seven rays. They resemble beautiful silver ribands. Trichiurus, Lin. A second tribe comprehends genera in which the mouth is small, and but slightly cleft. Gymnetrus, Bl. The body elongated and flat, as in all the preceding divisions, and totally deprived of the anal fin; but there is along dorsal whose lengthened anterior rays form a sort of panache, but they are easily broken; the ventrals, when not worn or broken, are very long, and the caudal, composed of very few rays, rises vertically from the extremity of the tail, which ends in a small hook. The Arctic ocean produces two species, called in Norway the King of the Herrings; one of which is said by some to have one hundred and twenty rays, and by others one hundred and sixty, and to attain the length of ten feet; the other has more than four hundred rays, and is eighteen feet in (1) Riband-like. 212 PISCES. length. The ventrals consist of a long filament dilated near the extremity. They are also found in India. Stylepiiokus, Shaw. A vertical caudal, as in Gymnetrus, but shorter; the extremity of the tail, instead of being curved into a small hook, is prolonged into a slender cord longer than the body. But one specimen is known. In a third tribe the snout is short, and the mouth cleft obliquely. Cepola, Lin. A long dorsal and anal, both reaching to the base of the caudal, which is tolerably large; no rise in the cranium; snout short; lower jaw curved up- wards; the teeth prominent, and the ventrals sufficiently developed. A short head, surmounted with a high osseous crest; to whose summit a long and stout spine is articulated, bordered behind with a membrane and a low fin, whose rays are nearly all simple, extending from this spine to the point of the tail, which has a distinct, but veiy small caudal. Lophotes, Giorna. FAMILY IX. THEUTYES. Our ninth family is as closely allied to the Scomberoides as the preceding one, but in other points, such as the armature, which is found in several genera on the sides of the tail, or in others, the horizontal spine before the dorsal, &.c. It contains but very few genera; they all have a compressed, oblong body, a small mouth, but slightly or not at all protractile, each jaw of which is armed with a single range of trenchant teeth; palate and tongue without teeth, and a single dorsal. They are herbivorous, feeding on fucus and other marine plants. Siganus, Forsk. These fishes have a remarkable character—unique, in icthyology—in their ventrals, which are furnished with two spinous rays, one external, the other internal; the three intermediate ones branching as usual. They have five branchial rays, and a horizontal spine before the dorsal. The styloid bones of their shoulder curve as they lengthen, so as to unite at their extremities with the first interspinal of the anal. Numerous species are found in the Indian Ocean. ACANTHOPTERYGII. 213 The remaining genera are Acanthurus, (Surgeons) Prionurus, Naseus, Axinurus, and Priodon. FAMILY X. This family is distinguished by LABYRINTHIFORM PHARYNGEALS. By this we mean, that part of the superior pharyngeals of these fishes are divided into small irregular lamellae, more or less numerous, intercepting cells containing water, which thus flows upon and hu- mects the branchiae, while the animal is removed from its proper element. By this it is enabled to quit the rivulet or pool, which constitutes its usual abode, and crawl to a considerable distance from it, a singular faculty, not unknown to the ancients, and which induces the people of India to believe that they fall from heaven. The two most remarkable genera of this family are the following. It is in this genus that we find the greatest degree of complication in these labyrinths; the third pharyngeals, however, have teeth arranged like paving stones, and thex*e are others behind the cranium. Their body is round and covered with strong scales, their head broad, muzzle short and obtuse, and mouth small; the lateral line is interrupted at its posterior third. An. testudineus, Cuv., called the Paneiri or Tree-Climber,- highly celebrat- ed, because it not only leaves the water, but, according to Daldorf, even climbs up the shrubs on its banks; this latter assertion, however, is denied. Found throughout all India, and the only species known. The Anabas, Cuv. Resembles the preceding genus in most of its characters, and particularly in the cellular conformation of the pharyngeals, which are adapted to retain water. These fishes also creep to a considerable distance from their liquid abodes, but what particularly distinguishes, and even separates, them from all other Acanthopterygii, is the absence of spines in the fins, the first ray of their ventrals at most excepted, and even that, though simple, is not sharp and stiff. The jugglers of India exhibit this fish out of water, and even the children amuse themselves by forcing it to crawl upon the ground. In the markets of China the larger species are cut up alive for distribution. They may be divided by the number of their dorsal rays. OPHICEPHALUS, Bl. 214 PISCES. FAMILY XI. MUGILOIDES. Our eleventh family of the Acanthopterygii is composed of the genus Mugil, Lin. These fishes present so many peculiarities in their organization, that they may be considered as forming a distinct family; their body is almost cylin- drical, covered with large scales, and furnished with two separate dorsals, the first of which has but four spinous rays; the ventrals are inserted a little behind the pectorals. There are six rays in the branchiae; their head is somewhat depressed, and covered with large scales or polygonal plates, their muzzle very short. Their transverse mouth, in consequence of a pro- minence in the middle of the lower jaw, which corresponds with a depress- ion in the upper one, forms an angle, the teeth being excessively tenuous, and frequently almost imperceptible. They resort to the mouths of rivers in large troops, and are continually leaping out of the water; the European seas produce several species hitherto very imperfectly ascertained; their flesh is esteemed. M. cephalus, Cuv. (The Common Mullet.) Distinguished from all the other species of Europe by its eyes, which are half covered by two adipose veils, adhering to the anterior and posterior edge of the orbit. There are two other genera, Tetragonurus and Jltherina, (the Aphyes of the ancients). FAMILY XII. GOBIOIDES. The Gobioides are known by the length and tenuity of the dorsal spines. Blennies have a strongly marked character in the ventral fins, which are placed before the pectorals and consist of only two rays. The body is elongated and compressed, and has but a single dorsal almost entirely com- posed of simple but flexible rays. They live in small troops among the rocks on the coast, leaping and playing, and are capable of living without water for some time. A slimy mucus is smeared over their skin, to which they owe their Greek name of Blennius. They are now distributed in va- rious subgenera, such as Myxodes, Salarias, Clinus, &c. Blennitjs, Lin. 215 ACANTIIOPTERYGII. So very similar are these fishes to the Blenny, that I would willingly name them Blennies without ventrals. A. lupus, L. (The Sea-Wolf) is the most common species; it inhabits northern seas, and is frequently seen on the coast of Europe; six or seven feet long; brown, with clouded bands of deep brown; the flesh resembling that of an Eel. This fish is valuable to the Icelanders, who salt and dry the flesh for food, employ the skin as shagreen, and the gall as soap. The Anarrhichas, Lin.(l) Commonly called Gobies or Sea-Gudgeons, are instantly recognized by the union of their thoracic ventrals, either along the whole of their length, or at least at their base, forming a single hollow disk more or less infundibuli- form. The spines of the dorsal are flexible, the branchial apertures provi- ded with five rays only, and generally but slightly open. They are small or moderate sized fishes, which live among the rocks near the shore. They prefer a clayey bottom, where they excavate canals in which they pass the winter. In the spring they prepare a nest in some spot abounding with fucus, which they afterwards cover with roots of the Zostera; here the male remains shut up, and awaits the females, who successively arrive to deposit their eggs; he exhibits much care and courage in defending and preserving them. This genus also is variously subdivided. Gobius, Lin. Callionymus, Lin. Fishes of this genus have two strongly marked characters, one in their bran- chiae, which have but a single aperture, consisting of a hole on each side of the nape, and another in their ventrals, which are placed under the throat, are separate, and larger than the pectorals. Their head is oblong and de- pressed, their eyes approximated and directed upwards, their intermaxilla- ries protractile, and their preopercula elongated behind and terminating in some spines. Their teeth are small and crowded, but there are none in the palate. They are pretty fishes with a smooth skin, whose anterior dorsal, Supported by a few setaceous rays, is sometimes very elevated. The second dorsal is elongated as well as the anal. It is with some hesitation that I close this family with a genus which will one clay probably form the type of a separate family; I mean the Ciiirus, Stell. Fishes with a tolerably long body, furnished with ciliated scales; a small (1) Jlnarrhichas, Climber, a name invented by Gesner because this fish is said to climb upon rocks and shoals by the aid of its fins and tail. 216 PISCES. unarmed head; slightly cleft mouth, provided with small, unequal, conical teeth; the spines of whose dorsal are almost always very delicate, the fin itself extending the whole length of the back. Their distinguishing char- acter consists in several series of pores, similar to the lateral line, or, as it were, in several lateral lines. They frequently have an appendage on the eye-brow, as is the case with certain Blennies, but their ventrals consist of five soft rays, as usual. The species known are from the sea of Kamschatka. FAMILY XIII. PECTORALES PEDICULATI. This family consists of certain Acanthopterygii whose carpal bones are elongated so as io form a sort of arm, which supports their pectorals. It comprises two genera, which are closely ap- proximated, although authors have generally placed them at a dis- tance from each other, and which are closely allied to the Gobioides. Lophius, Lin.(l) The general character of this genus, independently of the semi-cartilaginous skeleton and the naked skin, consists in the pectorals being supported by two arms,*as it were, each of which is formed of two bones mat have been compared to the radius and ulna, but which in reality belong to the carpus, and which in this genus are longer than in any other; in the ventrals being placed very far before these pectorals; in opercula and branchiostegous rays enveloped in the skin, and, finally, in the only opening of the gills being a hole situated behind the said pectorals. They are voracious fishes, which survive a long time out of water, on account of the smallness of their bran- chial apertures. L. piscatorius, L.; Sea-Devil; Galanga, &c. (The Angler.) A large fish, of from foui- to five feet in length, inhabiting the seas of Europe, whose hideous figure has rendered it celebrated. FAMILY XIV. LABROIDES. This family is easily recognized; the body is oblong and scaly; a single dorsal is supported in front by spines, each of which is gene- (1) Lophius, a name made by Artedi, from xoqnt (pinna), on account of the crests of their head. The ancients called them /Zurpcixoi, and Rana, or Frog. 217 ACANTHOPTERYGJI. rally furnished with a membranous appendage; the jaws are covered with fleshy lips; there are three pharyngeals, two upper ones attached to the cranium, and a large lower one, all three armed with teeth, now resembling a pavement and then pointed or laminiform, but generally stronger than usual. Labrus, Lin. A very numerous genus of fishes wfiich strongly resemble each other in their oblong form; their double fleshy lips, from which they derive their name, one adhering immediately to the jaws and the other to the suborbi- tals; their crowded branchix with five rays; their conical maxillary teeth, the middle and anterior of which are the longest, and their cylindrical and blunt pharyngeal teeth arranged like a pavement, the upper ones on two large plates, the lower on a single one which corresponds to the two others. Our Blackjish or Tautog is a true Labrus. This genus is divided into nine subgenera, differing in the teeth, mouth, &c. &,c. The most remarkable is the Epibuxtjs, Cuv. Remarkable for the excessive protractility of their mouth, which by a see-saw motion of their maxillaries, and the sliding forwards of their inter- maxillaries, instantly becomes a kind of tube. They employ this artifice to capture the small fry which pass within reach of this singular instrument. But a single species is known; Sparus insidiator, Pal., of a reddish co- lour. From the Indian Ocean. Chromis, Cuv. The lips, protractile intermaxillaries, pharyngeals, dorsal filaments, and port of a Labrus; but the teeth of the pharynx and jaws resemble those of a card, and there is a range of conical ones in front. The vertical fins are filamentous, those of the belly being even frequently extended into long threads; the lateral line is interrupted. C. vulgaris, The common or black Coracinus of the ancients. A small chesnut-brown fish, taken by thousands in the Mediterranean. Scartjs, Lin. A genus of fishes with remarkable jaws (that is, their intermaxillary and premandibular bones), which are convex, rounded, and furnished with teeth, arranged like scales upon their edge, and upon their anterior surface; these teeth succeed each other from behind, forwards, so that those of the base are the newest, and in time form a row on the edge. They have the ob- long form of aLabrus, large scales, and an interrupted lateral line; they have three pharyngeal plates, two above and one below, furnished with teeth as in a Labrus; but these teeth are transverse blades, and not like rounded paving stones. 218 PISCES. A species blue or red, according to the season, is found in the Archipe- lago, which is the Scarus creticus, Aldrov. and which late researches have convinced me is the Scarus, so highly celebrated among the ancients; the same that Elipertius Optatus, commander of a Roman fleet, during the reign of Claudius, went to Greece in search of, for the purpose of distributing it through the sea of Italy. It is an article of food in Greece at the pre- sent day. Numerous species are found in the seas of hot climates. The form of their jaws and the splendour of their colours have caused them to receive the vulgar appellation of Parrot-fishes. FAMILY XV. FISTULARIDiE. The fishes of this family are characterized by a long tube, in the fore-part of the cranium, formed by the prolongation of the aeth- moid, vomer, preopercula, interopercula, pterygoidals and tympa- nals, and at the extremity of which is the mouth, composed as usual of the intermaxillaries, maxillaries, and the palatine and mandibu- lary bones. Some of them, the Fistulari®, have a cylindrical body, in others, the Centrisci, it is oval and compressed. Fistularia, Lin. The name of these fishes, in particular, is derived from the tube common to the whole family. The jaws are at its extremity, slightly cleft in a nearly horizontal direction. This head, thus elongated, constitutes the third or fourth of the total length of the body, which is itself long and thin. There are six or seven rays in the branchiae, and some bony appendages extend behind the head, upon the anterior part of the body, which they strengthen more or less. The dorsal is opposite to the anal. Centriscus, Lin. In addition to the tubular snout of the family, the fishes of this genus have an oval or oblong (not elongated) body, compressed on the side, and tren- chant beneath; branchiae composed of but two or three slender rays; a first spinal dorsal and small ventrals behind the pectorals. The mouth is very small, and cleft obliquely. The second division of common fishes, or that of the Malacop- terygii, contains three orders, characterized by the position of the ventrals or by their absence. PISCES. 219 ORDER II. MALACOPTERYGII ABDOMINALES(l). In this order the ventrals are suspended to the under part of the abdomen and behind the pectorals, without being attached to the bones of the shoulder. It is the most numerous of the three, and comprehends most of the fresh-water fishes. We subdivide it into five families. FAMILY I. CIPRINIDiE. Tho Ciprinidas are recognized by the slightly cleft mouth; the weak jaws, generally edentated, and whose border is formed by the intermaxillaries; by the deeply dentated pharyngeals which compose the trifling armature of the jaws, and by the smaller number of the branchial rays. Their body is scaly, and they have no adipose dor- sal, such as we shall find in the Siluri and in the Salmons. Their sto- mach has no cul-de-sac, neither are there any csecal appendages to their pylorus. Ofall the fishes they are the least carnivorous. Cyprinus, Lin. A very numerous and natural genus, easily distinguished by the small mouth, edentated jaws, and the three flat rays of the branchiae. The tongue is smooth; the palate provided with a thick, soft, and singularly irritable sub- stance commonly termed a “ carp’s tongue.” The pharynx presents a powerful instrument of mastication, consisting of stout teeth attached to the inferior pharyngeals, which are so arranged as to be able to squeeze ali- mentary matters between them, and of a stony disk set in a wide cavity un- der a process of the sphenoid. These fishes have but one dorsal, and their body is covered with scales which most commonly are very large; they live in fresh water, and are perhaps the least carnivorous of the whole class, feeding chiefly on seeds, grass, and even ooze. They are variously subdivided. To Cyprinus proper, or the true Carps, belongs the well known (1) Malacopterygii, soft-finned. 220 PISCES. Cyp. auratus, L. (The Golden Carp or Gold and Silver Fish.) Dorsal and anal spines dentated as in the Common Carp. This fish is at first blackish and by degrees assumes that splendid golden red which charac- terizes it; some, however, are of a silver colour, and others again are marked by various shades of the three colours. Individuals are found without a dorsal, others have a very small one; the caudal of a third is very large and is divided into three or four lobes; the eyes of a fourth are excessively dis- tended; all these accidental changes, which are the result of domestication, may be variously combined. To the other subdivisions belong the Dreams, Gudgeons, Tenches, Suckers, &c. Cobitis, Lin. The head small, body elongated, invested with small scales and covered with mucus; ventrals very far back and above them a single small dorsal; the mouth at the extremity of the snout, but slightly cleft, without teeth, but encircled by lips fitted for sucking, and with cirri; but three rays in the branchiae, the apertures of which are small; the inferior pharyngeals strongly dentated. The fishes of this genus, for a long time and very improperly united with the Cobites, possess very peculiar characters; the cornea and iris of their very prominent eyes, which are placed under a roof formed on each side by the frontal, are divided into two portions by transverse bands, so that the organ of sight has two pupils, and appears to be double, although it has but one crystalline and one vitreous humour, and but one retina, a peculiarity of which there is no other example among vertebrated animals. But a single species is known; the Jlnableps tetrophtalmus, Bl.; it inhabits the rivers of Guiana. Anableps, Bl. FAMILY II. ESOCES. We find no adipose fin in this family. The edge of the upper jaw is formed by the intermaxillary, or when it is not completely so formed, the maxillary is edentated and concealed in the thickness of the lips. The fishes which compose it are extremely voracious. With the exception of the Microstomas, all those that are known have the dorsal opposite to the anal. Linnasus united them in the genus MALACOPTERYGII ABDOMINALES. 221 The Pikes, properly so called, have small intermaxillaries furnished with little pointed teeth in the middle of the upper jaw, of which they form the two- thirds, those on the sides of the jaw being edentated. The vomer, pala- tines, tongue, pharyngeals and rays of the branchiae, bristled with teeth resembling those of a card; a series of long pointed teeth on the sides of the lower jaw. E. Indus, L. (The Common Pike.) Well known as one of the most voracious and destructive of all fishes, but whose flesh is highly esteemed. This species, which inhabits Europe, is found in the fresh waters of North America, where two other species are also to be met with; the flanks of the one, Esox reticularis, Lesueur, are marked with brownish lines, sometimes resembling net-work; the other, Esox estor, is sprinkled with round black- ish spots. This genus is also subdivided into several sub genera. The most remar- kable is the Esox, Lin. Belone, Cuv. The whole edge of the upper jaw, which as well as the lower one is ex- tended into a long snout, formed by the intermaxillaries,—both furnished with small teeth, no others in the mouth, and those of the pharynx en pave. The body is elongated and covered with scales, which are not very appa- rent, one longitudinal carinated range near the lower edge excepted. The bones are very remarkable for their colour, which is a beautiful green. B. vulgaris. (The Gar-Fish.) Two feet long; green above, white be- neath; found on the coast of France, where its flesh is much esteemed, not- withstanding the colour of the bones. Neighbouring species inhabit all seas. The bite of one of them, which is said to attain a length of eight feet, is considered dangerous. Exocetus, Lin. These well known, or Flying-fishes, as they are called, are instantly distin- guished among the Abdominales by the excessive size of their pectorals, which are sufficiently large to support them in the air for a few moments. Their head and body are scaly, and a longitudinal range of carinated scales forms a salient line on the lower part of each flank, as in the Hemiramphi, &c. The head is flattened above and on the sides; the dorsal placed above the anal; the eyes large, the intermaxillaries without pedicles and constitu- ting the whole edge of the upper jaw; their two jaws are furnished with small pointed teeth, and their pharyngeals with teeth like a pavement. They do not fly far: rising in the air to avoid their voracious enemies, they soon fall into the sea, their wings merely acting as parachutes. Birds pur- sue them through the air and Fishes through the water. They are found in all the seas of hot and temperate climates. E. exilens, Bl. Common in the Mediterranean, and easily recognized by 222 PISCES. the length of its ventrals, placed posterior to the middle of the body; the fins of the young are marked with black bands. E. volitans, Bl. Common in the Atlantic Ocean, and has small ventrals placed anterior to the middle of the body. The American seas produce species with cirri, which are sometimes sim- ple, sometimes double, and even ramous. Next to the family of the Esoces we place a genus of fishes, which, though varying but little from the former, has some anatomical dif- ference. It will most probably give rise to a particular family. It is the Mormyrus, Lin. They are found in the Nile. FAMILY III. SILURIDiE. This family i9 distinguished from all others of the order by the want of true scales, having merely a naked skin or large osseous plates. The intermaxillaries, suspended under the ethmoid, form the edge of the upper jaw, and the maxillaries are reduced to sim- ple vestiges, or are extended into cirri. The first ray of the dorsal and pectoral is, almost always, a strong articulated spine, and there is frequently an adipose one behind, as in the Salmon. A numerous genus, easily recognized by its nudity, the mouth cleft in the extremity of the snout, and in the greater number of the sub genera, by the strong spine which forms the first ray of the pectoral. It is so articulated with the bone of the shoulder that the fish can either depress it, or raise it perpendicularly, when it is immovable, constituting a dangerous weapon, wounds from which are considered as poisoned, an idea arising from the fact that tetanus frequently ensues. They are usually called Cat-Jish. S. glanis, L. The largest fresh water fish found in Europe, and the only one of this extensive genus that it possesses; it is smooth, black, greenish, spotted with black above, with yellowish white beneath; head large; with six cirri; it sometimes exceeds six feet in length, and weighs three hundred pounds. It inhabits the rivers of Germany and Hungary, the lake of Haarlem, &c., and conceals itself in the mud to watch for prey. The flesh, which is fat, is employed in some places for the same purposes as lard. There are various subgenera. Silerus, Lin. Malafterurus, Lacep. Is distinguished from Silurus, properly so called, by the absence of the radi- MALACOPTERYGII ABDOMINALES. 223 ated fin on the back, there being nothing but a small adipose one on the tail, and by the total deficiency of a spine in the pectorals, whose rays are entirely soft. The head as well as the body is covered with a smooth skin; the teeth are small and crowded, and arranged in a broad crescent both above and below; there are seven rays in the branchiae, and the jaws and viscera resemble those of a Silurus. M. electricus, the Raasch or Thunder of the Arabs. The only species known; it has six cirri, and the head is not so big as the body, which is en- larged forwards. This celebrated fish, like the Torpedo and Gymnotus, has the faculty of communicating an electric shock. The seat of this power seems to be in a particular tissue, situated between the skin and the mus- cles, and presenting the appearance of a fatty cellular tissue abundantly furnished with nerves. From the Nile and the Senegal. The remaining genera of this family are Aspedro and Loricaria. FAMILY IV. SALMONIDES. The Salmonides, according to Linnaeus, form but a single great genus, clearly characterized by a scaly body, with a first dorsal, whose rays are all soft, followed by a second one small and adipose, that is formed of skin filled with fat, and unsupported by rays. It comprises fishes with numerous casca and a natatory bladder; nearly all of them ascend rivers, and are highly esteemed. They are naturally voracious. The structure and armature of the jaws are singularly various. Salmo, Lin. The Salmon, properly so called, or rather, the Trout, has a great portion of the edge of the upper jaw formed by the maxillaries; a range of point- ed teeth in the maxillaries, intermaxillaries, palatines and mandibularies, and a double one on the vomer, tongue, and pharyngeals; so that of all fishes it is the most completely furnished with teeth. In the old male the end of the lower jaw is bent up towards the palate, where a cavity re- ceives it when the mouth is closed. The ventrals are opposite to the mid- dle of the first dorsal, and the adipose to the anal. There are ten branchial rays or thereabout. The body is usually spotted, and the flesh good. These fishes ascend rivers to spawn, leaping over cataracts, &c., and are even found in the brooks and small lakes of the highest mountains. S. salar, L. (The Salmon.) The largest species of the genus, with red flesh and irregular brown spots, which soon disappear in fresh water; the cartilaginous hook formed by the lower jaw is inconsiderable even in the 224 PISCES. old male. From all the Arctic seas, whence it enters the rivers in the spring. The value of this fishery in all northern countries is well known. Besides these Salmons and Trouts which are found in Europe, several others have been described by American naturalists, but they havenotbeen sufficiently compared with the former. In one of the various subdivisions of this great genus (Osmerus) we find the Smelt. A genus of small fishes with a very elevated and compressed body, support- ed by the ribs; their mouth is directed upwrards; their humerals form a trenchant crest in front, terminated below by a small spine, and the bones of the pelvis form another, also terminated by a small spine in front of the ventrals. There is a series of small fossulae along each side of the pelvic crest which has been considered as a festooned duplicature of the sternum, whence the name of Sternoptyx. They are taken in the warm parts of the Atlantic Ocean. Sternoptyx, Herman. FAMILY Y. CLUPEiE. This family is easily recognized; there is no adipose fin; the up- per jaw is formed, as in the Trouts, by intermaxillaries without pe- dicles in the middle, and by the maxillaries on the sides; the body is always covered with numerous scales, and in the greater number we find a natatory bladder and many casca. A part only of the family ascend rivers. Clepea, Lin. The Herrings have two well marked characters in the narrow and short in- termaxillaries, that constitute but a small portion of the upper jaw, the sides of which are completed by the maxillaries, so that these sides are alone pro- tractile; and in the inferior edge of the body, which is compressed, and where the scales form notches resembling those of a saw. The maxillaries besides, are divided into three parts. The branchiae are so much cleft, that all the fishes of the genus are said to die instantly when taken from the water. The sides of the branchial rays next to the mouth are pectiniform. Of all fishes, these have the finest and most numerous bones. C. harengus, L. (The Common Herring.) This celebrated fish leaves the Arctic seas every summer and descends in autumn on the western coast of France in numberless legions, or rather in solid shoals of incalculable ex- tent, spawning on the way, and arriving at the mouth of the British chan- nel in the middle of winter, in a very extenuated condition. Whole fleets MALACOPTERYGII ABDOMINALES. 225 are occupied in this fishery, the extent and importance of which are too well known to need a comment. The best are those taken in the North; such as are caught on the coast of Lower Normandy are lean, dry, and of a disagreeable flavour. To this division or Clupea proper, belong the Sprat, White-Bait, Pilchard* and Sardine. Axosa, Cuv. Differs from Clupea, properly so styled, in an emargination of the middle of the upper jaw; all the other characters are those of the Pilchard and Sardine. Jl. vulgaris. (The Shad.) A much larger and thicker fish than the Herring, attaining a length of three feet, and distinguished by the absence of sensible teeth and by an irregular black spot behind the gills. It ascends the rivers in spring, and is then highly esteemed; when taken at sea it is dry and of a disagreeable flavour. Next to the true Clupeee come some genera, which approach them in the trenchant and indented abdomen. They are Odontog- nathus, Pristigaster, Notopterus, Engraulis (the Anchovy), Me- galops, Elops, Hyodon, &,c. &c. ORDER III. MALACOPTERYGII SUBRACHIATI. This order is characterized by centrals inserted under the pecto- rals; the pelvis is also directly suspended to the bones of the shoul- der. It contains almost as many families as genera. FAMILY I. GADITES. This family is almost wholly composed of the great genus Gadus, Lin. Recognized by the ventrals, which are pointed and attached to the throat. The body is moderately elongated, slightly compressed, and covered with rather small and soft scales; the head is well proportioned, but without 226 PISCES. scales; all the fins are soft; the jaws and front of the vomer armed with pointed, unequal, moderate or small teeth, disposed in several rows, and resembling1 a card or rasp; the branchiae are large and have seven rays. Most of the genus have two or three fins on the back, and a distinct cau- dal. The stomach forms a strong and large sac. The natatory bladder is large, strong, and frequently dentated on the sides. The greater number of these fishes inhabit cold or temperate seas, and constitute the object of important fisheries. Their white flesh, easily sep- arated in layers, is generally esteemed as light, wholesome, and sapid. They are subdivided into several subgenera. In Morrhua, we have Gadus morrhua, L. (The Cod.) From two to three feet long; back spotted with yellowish and brown; it inhabits the whole Northern Ocean, and multiplies so excessively in north latitudes, that whole fleets are annu- ally dispatched to capture it. Gadus xglefinus, L. (The Haddock.) The back brown, belly silvery, and lateral line black; a blackish spot behind the pectoral; quite as numer- ous in northern latitudes as the Cod, but not so much esteemed. In the subgenera of Gadus we find the Whiting, Hake, Ling, &c. FAMILY II. PLANI. The second family of the Malacopterygii Subrachiati, commonly called Flat-fishes, comprises the great genus Pleuronectes, Lin.(l) These fishes present a character, which, with respect to vertebrated ani- mals, is perfectly unique: it is the total want of symmetry in the head, where both eyes are on one side, which always remains uppermost when the ani- mal is swimming, and which is always deeply coloured, while that on which the eyes are wanting is always whitish. The remainder of the body, although, generally speaking, formed as usual, participates a little in this irregularity. Thus the two sides of the mouth are not equal, and the two pectorals are rarely so. Their body is strongly compressed and vertically elevated; the dorsal extends along the whole back; the anal occupies the under part of the body, and almost seems to be continued forwards by the ventrals, which are frequently united with it. There are six rays in the (1) Pleuronedes, a name formed by Artedi from rrxeopct the flank, and v»x- t»c a swimmer, because they swim on the side. The ancients gave them dif- ferent names according to the species, such as Passer, Rhombus, Ru- glossa, &c. MALA COPTER YGII SUB RAC HI ATI. 227 branchiae. They are taken along the coasts of almost all countries, and furnish a wholesome and delicious article of food. Individuals are sometimes captured whose eyes are placed on the side opposite to that in which they are generally seen, they are then said to be contoumds or reversed, others again have both sides of the body coloured alike, when they are called doubles or doubled; it is most generally the brown side which is thus reproduced, though it sometimes happens to the white one. The subdivisions of this genus include the Plaice, Flounder, Sole, Turbot, Holibut, &c. FAMILY III. DISCOBOLI. These fishes, so called on account of the disk formed by their ventrals, form two genera. Lepadogastkr, Gouan. The small fishes which compose this genus are remarkable for the following characters. Their ample pectorals having reached the inferior surface of the trunk, assume stouter rays, curve slightly forwards, and unite with each other on the throat by a transverse membrane directed forwards, which is formed by the union of the ventrals. The body is smooth and without scales, the head broad and depressed, the snout salient and protractile; the branchiae, but slightly cleft, are furnished with four or five rays, and they have but a single soft dorsal opposite to a similar anal. This genus is well marked by the ventrals, whose rays, suspended round the pelvis, and united by a single membrane, form an oval and concave disk, used by the fish as a sucker to attach itself to rocks. The mouth is wide, and its jaws and pharyngeals furnished with small and pointed teeth; opercula small: branch!® closed below, and provided with six rays; pecto- rals very large, and uniting almost beneath the throat, as if to embrace the disk of the ventrals. Cyclopterus lumpus, L. (The Lumpsucker.) The first dorsal so envel- oped in a thick and tubercular skin, that it has the appearance, externally, of being a simple dorsal hump; there are three ranges of thick conical tu- bercles on each side of it. It feeds on Medusae and other gelatinous ani- mals, particularly in the North. Its flesh is soft and insipid; heavy and with scarcely any means of defence, it becomes the prey of the Seal, Shark, See. The male is said to keep careful watch over the eggs. Cycloptertjs, Lin. 228 PISCES. This genus, as well as that of Pleuronectes, might form a particular family in the order of the Malacopterygii Subrachiati. The fishes of which it con- sists are remarkable for a flattened disk placed upon their head, composed of a certain number of transverse, cartilaginous laminae, directed obliquely backwards, dentated or spiny on their posterior edge, and movable, so that by creating a vacuum between them, or by hooking onto various bodies by means of the spines, they are enabled to attach themselves firmly thereto, a circumstance which gave rise to the fabulous saying, that the Remora possessed the power of suddenly stopping a vessel in the middle of its swiftest course. The species are not numerous; the most common one that inhabits the Mediterranean, Echcn. remora, L. well known by the name of Remora, is the shortest, and has but eighteen lamina: in its disk. Echeneis, Lin. ORDER IV. MALACOPTERYGII APODES. This order may be considered as forming but a single natural family, that of the ANGUILLIFORMES, Fishes with an elongated form, a thick and soft skin which almost renders its scales invisible, and but few bones. The great genus Murjena, Lin. Is recognized by the little opercula concentrically surrounded by the rays, all of which are enveloped in the skin, which only opens at a considerable distance back by a hole or species of tube, an arrangement which, by more completely protecting the branchiae, allows these fishes to remain some time out of water without perishing. Their body is long and slender; their scales, as if encrusted in a fat and thick skin, are only distinctly visible after desiccation; they have neither ventrals nor caeca. This genus has been successively separated into five or six genera, which naturalists are com- pelled to subdivide still more. Eels are distinguished by the two-fold character of pectoral fins and of branchiae opening under them on each side. Anguilla. MALACOPTERYGII APODES. 229 The dorsal commencing close to the pectorals, or even on them; the up- per jaw longest in all the known species. Mur. conger, L- (The Conger Eel.) Found in all the seas of Europe; it attains the length of five or six feet and the thickness of a man’s leg; dorsal and anal edged with black; lateral fine dotted with whitish. It is not in much request for the table. CONGEB, CUV. Murjena, Thunb. The Mur sense, properly so called, have no vestige of pectorals; their bran- chiae open on each side by a small hole; their opercula are so thin, and their branchiostegal rays so slender and concealed under the skin, that able naturalists have denied their existence. M• helena, L. Common in the Mediterranean; a fish much esteemed by the ancients, who fed it in ponds expressly constructed for that purpose. The history of Vxdius Pollio, who caused his transgressing slaves to be flung alive into these ponds as food for the Mursenae, is well known. It at- tains a length of three feet and more, is mottled with brown and yellowish, and is excessively voracious. It is immediately after this great genus of the Muraenae that should be placed a newly discovered fish, which is one of the most singular of the whole class; I mean the Saccopharynx, Mitch. Whose trunk, susceptible of being so inflated as to resemble a thick tube, terminates in a very long and slender tail, surrounded by an extremely low dorsal and anal, which unite at its point. The mouth, armed with sharp teeth, opens far behind the eyes, which are placed close to the very short point of the snout. The branchial aperture consists in a hole under the pectorals, which are very small. This fish attains a large size, and appears to be voracious. It has only been seen in the Atlantic Ocean, floating on the surface by the dilatation of its throat. Gymnottjs, Lin.(l) The gills partly so closed by a membrane, as in Anguilla, but opening be- fore the pectorals. G. eledricus, L. (The Electrical Gymnotus); which, from its almost uni- form shape and obtuse head and tail, has also been called the Eledrical Eel. It is from five to six feet long, and communicates such violent shocks that (1) Gymnotus, or, properly speaking, Gymnonotus (Bare-back), a name given to these fishes by Artedi. 230 PISCES. men and horses are struck down by them. This power is dependent on the will of the animal, which gives it what direction it pleases, and renders it effective, even at a distance, killing fishes therewith, so situated. It is, however, dissipated by use, and to renew it, the Gymnotus requires rest and nourishing food. The organ which is the seat of this singular faculty, extends along the whole under side of the tail, occupying about half its thickness; it is divided into four longitudinal fasciculi, two large ones above and two smaller ones below, and against the base of the anal fin. The lit- tle cells, or rather the little prismatic and transverse canals formed by the two kinds of laminae that unite the bundles, are filled with a gelatinous mat- ter, and the whole apparatus receives a proportionably large number of nerves. Gymnarchus, Cuv. The body scaly and elongated, and the gills slightly open before the pecto- rals as in Gymnotus; but a fin, with soft rays, occupies the whole length of the back; and there is none behind the anus, nor under the tail, which ter- minates in a point. The head is conical and naked, the mouth small, and furnished with a single row of small trenchant teeth. G. niloticus. The only species known; discovered in the Nile by M. Riffault. Leptocepiialus, Penn. The branchial aperture before the pectorals; body compressed like a riband; head extremely small, with a short and somewhat pointed snout; pectorals almost imperceptible, or totally wanting; the dorsal and anal hardly visible, and uniting at the point of the tail. The intestines occupy but an ex- tremely narrow line along the inferior edge. L. morisii, Gm., inhabits the coast of France and England. Several other species, however, are found in the seas of hot climates, all of them as thin as paper and transparent as glass, so that even the skeleton is not visible. The profound study of their organization is one of the most interesting to which travellers can devote themselves. Ophidium. Lin. Dorsal and anal fins united with that of the tail, and terminating the body in a point; the body so elongated and compressed that it has been compared to a sword, and invested like that of an Eel with small scales planted in the thickness of the skin. The Opliidii, however, differ from Eels in their well cleft branchiae, which are furnished with a very apparent operculum and a membrane with short rays. Their dorsal rays are articulated, but not branched. Ammodytes, Lin. An elongated body like that of the preceding fishes, provided with a fin, MALACOPTERYGII APODES. 231 having articulated but simple rays, occupying a great part of the back, with a second behind the vent, and with a third which is forked at the end of the tail; these three fins, however, are separated by free spaces. The snout is acute; the upper jaw susceptible of extension, and the lower one, when at rest, longer than the other. ORDER V. LOPHOBRANCHII(l). All the fishes of which we have hitherto spoken, have not only a bony or fibrous skeleton, and complete and free jaws, but their branchiae are uniformly composed of laminae, or are pectiniform. In this order, however, we likewise find the jaws free and complete; but it is eminently distinguished by the gills, which, instead of resembling, as usual, the teeth of a comb, are divided into small round tufts, arranged in pairs along the branchial arches, a struc- ture of which no other fishes present any example. They are enclosed beneath a large operculum, tied down on all sides by a membrane which leaves only a single small orifice for the exit of the water, and exhibiting in its thickness only vestiges of rays. These fishes are also recognized by the scutellated plates of mail which cover their body, and usually render it angular. They are generally small, and almost without flesh. Syngnathus, Lin.(2) The Syngnathi constitute a numerous genus characterized by a tubular snout, formed, like that of the Fistularidse, by the prolongation of the ethmoid, vomer, tympanals, preopercula, subopercula, &c., and terminated by an ordinary mouth, but one that is cleft almost vertically on its extremity. The respiratory aperture is near the nape? and the ventrals are wanting. There is a peculiarity in the production of these fishes, whose ova slip into a pouch formed by an inflation of the skin and are hatched there; this pouch, in some, is situated under the abdomen, and in others under the base of the tail; it splits spontaneously for the passage of the fry. (1) Tufted gills. (2) From and >va’9-oc (united jaws), a name composed by Artedi, who thought that the tube of the snout of these fishes was formed by the union of their jaws. 232 PISCES. There are three subgenera, viz. Hippocampus (the Sea-horse), Solenosto- mus, and Pegasus. ORDER VI. PLECTOGNATHI(l). We have now passed from the preceding five orders of bony or fibrous fishes, with free and complete jaws, to the sixth, which may be approximated to the Chondropterygii, with which it is allied by the imperfection of the jaws, and the tardy induration of the skele- ton; this skeleton, however, is fibrous, and its whole structure is that of ordinary fishes. The most distinguishing character of the order consists in the maxillary bone being soldered to the side of the in- termaxillary, which alone constitutes the jaw, and in the mode in which the palatine arch is connected with the cranium, which, being by a suture, consequently renders it immovable. Besides this, the opercula and rays are concealed under a thick skin, through which only a small branchial fissure is visible. Of ribs, nothing is to be found but very small vestiges. There are no true ventrals. This order comprises two very natural families, characterized by their mode of dentition. FAMILY I. GYMNODONTES(2). The Gymnodontes have jaws, which, instead of teeth, are fur- nished with an ivory substance, internally divided into laminas, whose ensemble resembles the beak of a Parrot, and which in fact consists of true teeth united, that succeed each other as fast as they are de- stroyed by trituration. The opercula are small, and there are five rays on each side, all of which are but imperfectly seen. They live on Crustacea and fucus, their flesh is mucous, and that of several species is considered poisonous, at least in certain seasons. (1) Cheeks united by suture. (2) Naked teeth. PLECTOGNATHI. 233 Two of the genera, Tetraodon and Diodon, have the faculty of swelling themselves up like a balloon, by filling their stomach (or rather a sort of very thin and extensible crop, which occupies the whole length of the abdomen, and adheres closely to the peritoneum, a circumstance which has occasioned it to be considered at one time as the peritoneum itself, and at another as a species of epi- ploon) with air. When thus inflated, they roll over, and float on the surface, with the abdomen upwards, unable to direct their course; but they are extremely well defended while in this position by the erection of the spines with which their skin is everywhere furnished. Diodon, Lin. So called because the jaws are undivided and formed of one piece above and another below. Behind the trenchant edge of each of these pieces, is a round portion, transversely furrowed, which constitutes a powerful instru- ment of mastication. The skin is everywhere so armed with stout pointed spines, that when inflated, they resemble the burr of a chestnut tree. A number of species inhabit the seas of hot climates. Tetraodon, Lin. Jaws divided in the middle by a suture, so as present the appearance of four teeth, two above and two below; spines small and low. Several spe- cies are said to be poisonous. Cepiialus, Sh. Jaws undivided as in Diodon; but the body, compressed and spineless, is not susceptible of inflation, and the tail is so short and high that this fish resembles one whose posterior portion has been truncated, producing a singular appearance, that is amply sufficient to distinguish it. A thick layer of a gelatinous substance is spread under the skin. C. brevis, Sh. (The Short Sunfish.) Four feet and more in length, and weighing upwards of three hundred pounds; the skin is very rough, and of a fine silver colour. European seas. We also make a separate genus of these fish.es, whose upper jaw is divid- ed as in Tetraodon, and the lower one single, as in Diodon. An enormous dewlap almost as long as the body and twice as high, is supported before by a very large bone which represents the pelvis and approximates them to certain Balistes. Their fins are those of a Diodon, their body is rough as in Tetraodon, and the surface of their dewlap is covered with numerous, small, rough crests, placed obliquely. T. bursarius, Reinw. The only species known; it was discovered in the Indian Ocean by M. Reinward. Triodon, Cuv. 234 PISCES. FAMILY II. SCLERODERMI(l). The second family of the Plectognathi is easily distinguished by a conical or pyramidical snout, prolonged from the eyes and termi- nated by a small mouth, armed with a few distinct teeth in each jaw. The skin is usually rough or invested with hard scales; the nata- tory bladder is oval, large, and strong. Balistes, Lin. The body compressed; eight teeth in a single row in each jaw, generally trenchant; the skin scaly or granulated, but not exactly osseous; the first dor- sal composed of one or more spines articulated with a particular bone which is attached to the cranium, marked by a furrow into which they are received; the second dorsal long, soft, and placed opposite to a nearly similar anal. These fishes abound in the torrid zone, near rocks and on the surface of the water, where they display their brilliant colours. Their flesh, which is but lightly esteemed at all times, becomes, it is said, poisonous during the period in which they feed on the coralline Polypi: fucus is all that I met with in those I opened. B. capriscus, L. (The Mediterranean File-Fish.) Brownish-grey, spot- ted with blue, or greenish. Its flesh is not esteemed. Ostracion, Lin. The head and body of these fishes, instead of scales, are covered with regu- lar bony plates solvered in such a manner as to form a sort of inflexible shield, which invests them, so that the only movable parts are the tail, fins, mouth, and a sort of small lip with which the edge of their gills is furnished, all passing through holes in this coat of mail. CH0NDR0PTERYGII(2). The second series of the class of fishes, or the Chondropterygii, can neither be considered as superior nor inferior to that of the Ordinary Fishes, for several of its genera approach the Reptiles in the conformation of the ear while in others the organization is so simple, and the skeleton so much reduced, that we might be ex- cused for hesitating to place them among vertebrate animals. It is (1) Rough-skinned. (2) Cartilaginous-finned. 235 CHONDROPTERYGII. therefore a suite somewhat parallel to the first, as the Marsupialia, for instance, are parallel to the other unguiculated Mammalia. The skeleton of the Chondropterygii is essentially cartilaginous: that is, it contains no osseous fibres, the calcareous matter being deposited in small grains, and not in filaments; hence the absence of sutures in their cranium, which is always formed of a single piece, but in which, by means of projections, depressions, and holes, re- gions analogous to those in the cranium of other fishes may be dis- tinguished. It sometimes happens that movable articulations, which are found in other orders, are not met with in this one; part of the vertebrae of certain Rays, for instance, being united in a single body. Some of the articulations of the bones of the face also disappear, and the most apparent character of this division consists in the ab- sence of the maxillaries and intermaxillaries, or rather in their re- duction to mere vestiges concealed under the skin, while their functions are fulfilled by bones analogous to the palatines, and even sometimes by the vomer. The gelatinous substance, which in other fishes fills the intervals of the vertebras, and only communicates with them by a small hole, forms a long cord in several of the Chon- dropterygii, which traverses the bodies of almost all the vertebrae, without scarcely varying in diameter. This series is divided into two orders*—-the Chondropterygii whose branchiae are free, like those of ordinary fishes; and those in which they are fixed, that is to say, attached to the skin by their external edge in such a manner that the water can only escape from their intervals through holes on the surface. ORDER I. STURIONES, OR CHONDROPTERYGII BRANCHES LIBERIS, Or Chondropterygii, with free Iranchice, which are still closely allied to the ordinary fishes in their gills, which have but a single wide opening, and are furnished with an operculum, but without rays in the membrane. This order comprises but two genera. 236 PISCES. The general form of the Sturgeon is similar to that of the Shark, but the body is more or less covered with bony plates in longitudinal rows; the ex- terior portion of the head is also well mailed; the mouth, placed under the snout, is small and edentated; the palatine, soldered to the maxillaries, con- verts them into the.upper jaw, and vestiges of the intermaxillaries are found in the thickness of the lips. This mouth, placed on a pedicle that has three articulations, is more protractile than that of a Shark. The eyes and nostrils are on the side of the head, and cirri are inserted under the snout. The labyrinth is perfectly formed in the cranial bone, but there is no vestige of an external ear. A hole perforated behind the temple is a mere spiracle, which leads to the branchiae. The Sturgeon ascends certain rivers in great numbers, and is the object of important fisheries; the flesh of most species is agreeable, their ova are con- verted into caviar, and their natatory bladder into isinglass. Western Eu- rope produces A. ruthenus, L. (The Sterlet.) Seldom more than two feet in length; plates of the lateral rows more numerous and carinated, those of the belly flat. It is considered a delicious fish, and its caviar is reserved for the Kussian court. There is reason to believe that it is the Elops and the Aci- penser, so highly celebrated among the ancients. A. huso, L. (The great Sturgeon.) Blunter plates and a shorter snout and cirri than those of the Common Sturgeon; the skin also is smoother. It is frequently found to exceed twelve and fifteen feet in length, and to weigh more than twelve hundred pounds. One specimen was captured whose weight amounted to near three thousand pounds. The flesh is not much esteemed, and is sometimes unwholesome; but the finest isinglass is made from its natatory bladder. It is also found in the Po. North America has several species of this genus which are peculiar to it. Acipenseh, Lin.(l) Spatularia, Sh. These fishes are recognized at once, by the enormous prolongation of their snout, to which its broad borders give the fignre of a leaf. Their general form and the position of their fins remind tire observer of a Sturgeon, but their gills are still more open, and the operculum is prolonged into a mem- branous point which extends to near the middle of the body. The mouth is well cleft and furnished with numerous small teeth. But a single species is known, the Paddle-fish of the Mississippi. Chimjera, Lin. The Chimsra: are closely allied to the Sharks in their general form and in the position of their fins, but all their branchiae open externally by a single (1) Acipenser is the ancient name; Sturio, whence Sturgeon, is modern, and is probably the German name Stoer latinized. CHONDROPTERYGII BRANCHIIS LIBERIS. 237 apparent hole on each side, although if we penetrate more deeply, we find that they are attached by a large part of their edges, and that in fact there are five particular holes terminating in the bottom of the common aperture. A vestige of an operculum, however, is concealed under the skin. The jaws are still more reduced than in the Shark, for the palatine and tympanic bones are also mere vestiges suspended to the sides of the snout, and the vomer is the only representative of the upper jaw. Hard and indivisible plates supply the place of teeth, four on the upper jaw and two on the lower. The snout, supported like that of a Shark, projects forwards and is pierced with pores arranged in tolerably regular lines; the first dorsal, armed with a strong spine, is placed over the pectorals. They produce very large coriaceous eggs with flattened and hairy borders. C. monstrosa, L. (The Arctic Chimaera.) Two or three feet long, of a silvery colour, and spotted with brown. From the Northern and Euro- pean seas. ORDER II. Or the Chondropterygii with fixed branchise, instead of having those organs free on the external edge, and opening all their inter- vals into a large common orifice, as is the case in all the fishes of which we have hitherto spoken, have them adhering by this external edge in such a manner that they permit the water to escape through as many holes pierced in the skin as there are intervals between them, or, at least, that these holes may terminate in a common duct, through which the water is ejected. Another circumstance pecu- liar to these fishes is the presence of little cartilaginous bows, fre- quently suspended in the muscles opposite to the external edges of the branchiae, and which may be termed branchial ribs. CHONDROPTERYGII BRANCHIIS FIXIS, FAMILY I. SELACHII. This family, hitherto comprized under two genera, Squalus and Raia, has many common characters. The palatines and post-man- dibularies, alone armed with teeth, supply the place of jaws, the usual bones of which are reduced to mere vestiges; one single bone suspends these apparent jaws to the cranium, representing at once 238 PISCES. the tympanal, jugal and temporal bones, and the preoperculum. The hyoid bone is attached to the single pedicle just mentioned, and supports branchiostegal rays, as in ordinary fishes, although they are not so very visible, externally; it is followed by the branchial arches, as usual, but neither of the three pieces compose the oper- culum. These fishes have both pectorals and ventrals: the latter are situated behind the abdomen. Their membranous labyrinth is enclosed by the cartilaginous substance of the cranium; the sac, which constitutes part of it, contains mere amylaceous masses, and not stones. Sqtjaltjs, Lin. The Sharks form a first great genus distinguished by an elongated body, a thick fleshy tail and moderate pectorals, so that the general figure ap- proaches that of ordinary fishes; the branchial openings correspond with the sides of the neck, and not with the under surface of the body, as we shall see is the case with the Rays; the eyes also are on the sides of the head. The snout is supported by three cartilaginous branches connected with the anterior part of the cranium, and the rudiments of the maxillaries, inter- naaxillaries, and premandibularies are evident in the skeleton. Several are viviparous. The others produce ova invested with a yellow and transparent horn, the angles of which are prolonged into horny cords. The little branchial ribs are apparent, and there are also small ones along the sides of the spine, which is completely divided into vertebrae. The ge- nus is very numerous and authorizes various subdivisions. Cahchabias, Cuv. A numerous and by far the most celebrated tribe; with trenchant, pointed teeth, most commonly dentated on the margin. The first dorsal is far be- fore the ventrals, and the second about opposite to the anal. The spiracles are wanting; the nostrils are placed under the middle of the depressed snout, and the last branchial apertures extend over the pectorals. Sq. carcharias, L. (The White Shark.) This species attains the length of twenty-five feet, and is recognized by its teeth, which in the upper jaw nearly form isosceles triangles with rectilinear and dentated sides. The lower ones consist of narrow points placed on wider bases, terrific weapons, which are the dread of mariners. It would appear that it inhabits every sea; but its name has frequently been applied to other species with tren- chant teeth. Seeache, Cuv., In addition to the form of the Squali, and the spiracles of the Galei, is furnished with branchial openings that are nearly large enough to encircle the neck, and with small conical and unemarginate teeth. CHONDROPTERYGI1 BRANCHIIS FIXIS. 239 The common species, Sq. maximus, L. (The Basking Shark), has no- thing of the ferocity of the Shark, although it surpasses it in size as well as all other Squali. Individuals have been captured that were more than thirty feet in length. It inhabits the Arctic Seas, but is sometimes driven on the coast of France by the strength of the north-east winds. There are several other subgenera. A second genus may be formed of the Which to the characters of a Carcharias, adds a form of head of which there is no other example in the animal kingdom. It is horizontally flattened and truncated before, the sides extending transversely in branches, which give it a resemblance to the head of a hammer; the eyes are placed at the ex- tremity of the branches, and the nostrils on their anterior edge. The most common species of the European seas, Sq. zygoena, is some- times twelve feet long. Zygoena, Cuv. Spiracles, but no anal, as in the third division of the Squali, but differing from all of them in the mouth, which is cleft in the end of the snout and not beneath, and in the eyes, which are placed on its dorsal surface and not on the sides. The head is round, the body broad and horizontally flattened, the pectorals large and extending forwards, but separated from the body by a fissure where the branchial orifices are pierced; the two dorsals are behind the ventrals, and the caudal is attached both above and beneath. The Squat, angelus (The Angel-Fish) attains a considerable size in the Euro- pean seas. Its skin is rough, and the edges of the pectorals are furnished with small spines. Sqtjatina, Dumer. Pristis, Lath.(l) The Saw Fish forms a fourth genus. To the elongated form of the Squali it unites a body flattened before and branchiae opening below, as in the Rays; but its peculiar chaaracter consists in a very long depressed snout resembling the blade of a sword, armed on each side with stout, bony, trenchant and pointed spines,planted like teeth. This beak, from which these fishes de- rive their name, is a most powerful weapon, and with it they attack the largest Whales. The true teeth of their jaws resemble small paving stones, like those of a Mustelus. The common species, Pristis antiquorum, Lath., attains a length of twelve or fifteen feet. (1) Ufid'ui, saw; the Greek name of this fish. 240 PISCES. Raia, Lin.(l) The Rays form a less numerous genus than the Squali. They are recognized by the horizontally flattened body which resembles a disk, from its union with the extremely broad and fleshy pectorals which are joined to each other before or to the snout, and which extend behind the two sides of the abdomen as far as the base of the ventrals. The eyes and spiracles are seated on the dorsal surface, the mouth, nostrils, and orifices of the bran- chiae on the opposite one. The dorsal fins are almost always on the tail. The ova are brown, coriaceous, and square, the angles extended into points. In the various subdivisions of this genus, we find the Sting-Ray, Spotted Torpedo, Thornback, Skate, &c. The most remarkable subgenus is Torpedo, Dum. The tail short, but still tolerably fleshy; disk of the body nearly circular, the anterior border being1 formed by two productions of the snout which in- cline side-wise in order to reach the pectorals; the space between these pectorals, head and branchiae is filled on each side with a singular apparatus formed of little membranous tubes placed close together like a honeycomb, subdivided by horizontal diaphragms into small cells filled with a sort of mucus, and traversed by numerous nerves proceeding from the eighth pair. It is in this apparatus that resides the electric or galvanic power which has rendered the Torpedo so celebrated; violent shocks are experienced by touching it, and it is most probable that the same power is employed to bewilder its prey. The body is smooth, the teeth small and sharp. FAMILY II. SUCTORII.—CYCLOSTOMI, Dumer. The Suctorii, as regards the skeleton, are the most imperfect of fishes, and even of all vertebrate animals. They have neither pec- torals nor ventrals; their elongated body is terminated before by a circular or semicircular fleshy lip, and the cartilaginous ring which supports it results from the soldering of the palatines to the mandi- bularies. The bodies of all the vertebrae are traversed by a single tendinous cord filled with a mucilaginous substance without strangu- lations, which reduces them to the condition of cartilaginous rings, scarcely distinct from each other. The annular portion, a little more solid than the rest, is not however cartilaginous throughout the whole of its circle. They have no ordinary ribs; but the small (1) Raia in Latin, Bar it and Brtcc in Greek, are the ancient names of these fishes. CHONDROPTERYGII BRANCHI1S FIX1S. 241 branchial ones, which are hardly perceptible in the Squali and Rays, are here greatly developed and united with each other, forming a kind of cage, while there are no solid branchial arches. The bran- chiae, instead of being pectinated as in all other fishes, resemble pur- ses, resulting from the junction of one face of a branchia with the opposing one of its neighbour. The labyrinth of the ear is en- closed by the cranium, and the nostrils open externally by a single orifice, in front of which is a blind cavity. Petromyzon, Li n. (1) The Lampreys have seven branchial openings on each side; the skin of the tail above and beneath is turned up into a longitudinal crest which supplies the place of a fin, but in which the rays resemble scarcely visible fibres. The maxillary ring of the True Lamprey is armed with strong teeth, and the interior disk of the lip, which is very circular, is furnished with tuber- cles covered with an extremely hard shell, and similar to teeth. There are two longitudinal rows of small teeth on the tongue, which moves backwards and forwards like a piston; by this, that suction is produced which distin- guishes this animal. Water reaches the branchice from the mouth by a par- ticular membranous canal, placed under the oesophagus and perforated with holes, that may be compared to a trachea. These fishes habitually fix themselves by suction to stones and other solid bodies; they attack the largest fishes in the same way, and are finally enabled to pierce and de- vour them. P. marinus, L. (The Sea Lamprey.) Two or three feet in length, marbled with brown on a yellowish ground; two large approximated teeth on the upper part of the maxillary ring. It ascends the mouths of rivers in the spring, and is highly esteemed. P.Jhivialis, L. (The River Lamprey.) From a foot to eighteen inches in length; silvery, blackish and olive on the back; first dorsal veiy distinct from the second; two large separated teeth on the upper part of the maxil- lary ring. Inhabits rivers, &c. Myxine, Lin. But a single tooth on the upper part of the maxillary ring, which is alto- gether membranous; lateral dentations of the tongue strong, and arranged in two rows on each side, so that the jaws of these fishes seem to be lateral like those of Insects or the Nereides, which induced Linnaeus to place them in the class of Vermes; the rest of their organization, however, is analogous (1) Lamproye, Lampreda, Lamprey, corruptions of Lampetra, which is itself modern, and, according’ to some, derived from Lambendo, petras. Petromyzon is the Greek translation of the same, by Artedi. 242 pisces. to that of the Lampreys: the tongue also acts like a piston, and the spine of the back is in the form of a cord. The mouth is circular and surrounded with eight cirri; in its upper margin is a spiracle which communicates with its interior. The body is cylindrical, and furnished behind with a fin that surrounds the tail. There are no vestiges of eyes. The eggs become large. These singular animals pour out such an abundance of mucus through the pores of their lateral line, that the water of the vases in which they are kept seems to be converted into a jelly. They attack and pierce other fishes like the Lampreys. They are subdivided according to the external orifices of their branchiae. 243 SECOND GREAT DIVISION OF THE ANIMAL KINGDOM. ANIMALIA MOLLUSCA. (1) The Mollusca have neither an articulated skeleton nor a verte- bral canal. Their nervous system is not united in a spinal marrow, but merely in a certain number of medullary masses dispersed in different points of the body, the chief of which, termed the brain, is situated transversely on the oesophagus, and envelopes it with a nervous collar. Their organs of motion and of the sensations have not the same uniformity as to number and position, as in the Verte- brata, and the irregularity is still more striking in the viscera, par- ticularly as respects the position of the heart and respiratory organs, and even as regards the structure of the latter; for some of them respire elastic air, and others salt or fresh water. Their external organs, however, and those of locomotion, are generally arranged symmetrically on the two sides of an axis. The circulation of the Mollusca is always double; that is, their pulmonary circulation describes a separate and distinct circle. The blood of the Mollusca is white or bluish, and it appears to contain a smaller proportionate quantity of fibrine than that of the Yertebrata. There are reasons for believing that their veins fulfil the functions of absorbent vessels. Their muscles are attached to various points of their skin, form- ing tissues there which are more or less complex and dense. Their (1) Soft animals. 244 MOLLUSCA. motions consist of various contractions which produce inflexions and prolongations of their different parts, ora relaxation of the same, by means of which they creep, swim, and seize upon various ob- jects, just as the form of these parts may permit; but as the limbs are not supported by articulated and solid levers, they cannot ad- vance rapidly, or per saltum. The irritability of most of them is extremely great, and remains for a long time after they are divided. Their skin is naked, very sensible, and usually covered with a humour that oozes from its pores. No particular organ of smell has ever been detected in them, although they enjoy that sense; it may possibly reside in the entire skin, for it greatly resembles a pituitary membrane. All the Aca- lepha, Brachiopoda, Cirrhopoda, and part of the Gasteropoda and Pteropoda, are deprived of eyes; the Cephalopoda on the contrary have them at least as complicated as those of the warm-blooded animals. They are the only ones in which the organ of hearing has been discovered, and whose brain is enclosed within a particular cartilaginous box. Nearly all the Mollusca have a development of the skin which covers their body, and which bears more or less resemblance to a mantle; it is often however narrowed into a simple disk, formed into a pipe, hollowed into a sac, or extended and divided in the form of fins. The Naked Mollusca are those in which the mantle is simply membranous or fleshy; most frequently, however, one or several la- minae, of a substance more or less hard, is formed in its thickness, deposited in layers, and increasing in extent as well as in thickness, because the recent layers always overlap the old ones. When this substance remains concealed in the thickness of the mantle, it is still customary to style the animals Naked Mollusca. Most generally, however, it becomes so much developed, that the contracted animal finds shelter beneath it; it is then termed a shell, and the animal is said to be testaceous; the epidermis which covers it is thin, and sometimes desiccated. The variety in the form, colour, substance and brilliancy of shells, is infinite; most of them are calcareous; some are horny, but they always consist of matters deposited in layers, or exuded from the skin under the epidermis like the mucous covering, nails, hairs, horns, scales, and even teeth. The tissue of shells differs according to the MOLLUSCA. 245 mode of this deposition, which is either in parallel laminae or in crowded vertical filaments. All the modes of mastication and deglutition are visible in the Mollusca; here the stomachs are simple, there multiple, and are frequently provided with a peculiar armature. The Mollusca in general appear to be animals that are but slightly developed, possessed of but little industry, and which are only pre- served by their fecundity and vital tenacity. Division of the Mollusca into Six Classes. The body of some resembles a sac open in front, containing the branchiae, whence issues a well developed head crowned with long and strong fleshy productions, by means of which they crawl, and seize various objects. These we term the Cephalopoda. That of others is closed; the appendages of the head are either wanting or are extremely reduced; the principal organs of locomo- tion are two wings or membranous fins, situated on the sides of the neck, and which frequently support the branchial tissue. They constitute the Pteropoda. Others again crawl by means of a fleshy disk on their belly, some- times, though rarely, compressed into a fin, and have almost always a distinct head before. We call these the Gasteropoda. A fourth class is composed of those where the mouth remains hidden in the bottom of the mantle, which also encloses the branchiae and viscera, and is open either throughout its length, at both ends, or at one extremity only. Such are our Acephala. A fifth comprises those, which, also inclosed in a mantle and with- out an apparent head, have fleshy or membranous arms, furnished with cilia of the same nature. We term these Brachiopoda. Finally, there are some, which, although similar to the other Mol- lusca in the mantle, branchiae, &.C., differ from them in numerous horny and articulated limbs, and in a nervous system more nearly allied to that of the Articulata. They will constitute our last class, or that of the Cirrhopoda. 246 MOLLUSCA. CLASS I. CEPHALOPODA. Their mantle unites under the body, forming a muscular sac which envelopes all the viscera. In several, its sides are extended into fleshy fins. The head projects from the opening of the sac; it is rounded, furnished with two large eyes, and crowned with longer or shorter conical and fleshy arms or feet, capable of being flexed in every direction, and extremely vigorous, the surface of which is armed with suckers or cups, which enable them to adhere with great tenacity to every body they embrace. These feet are their instru- ments of prehension, natation, and walking. They swim with the head backwards, and crawl in all directions with the head beneath and the body above. The Cephalopoda have two branchise within the sac, one on each side, resembling a highly complicated fern leaf; the great vena cava, having arrived between them, divides into two branches, which pour their contents into two fleshy ventricles, each of which is placed at the base of the branchias on its own side, and propels the blood into it. is effected by the water which flows into the sac and issues through a funnel placed at its opening. Between the base of the feet we find the mouth armed with two stout horny jaws resembling the beak of a parrot. These animals are remarkable for a peculiar and intensely black excretion, with which they darken the surrounding water when they wish to conceal themselves. It is produced by a gland, and held in reserve by a sac, variously situated, according to the species. Their brain, which is contained in a cartilaginous cavity of the head, gives off a cord on each side which produces a large ganglion in each orbit, whence are derived innumerable optic filaments; the eye consists of several membranes, and is covered by the skin which becomes diaphanous in that particular spot, sometimes forming folds which supply the want of eyelids. The ear is merely a slight cavity, on each side near the brain, without semicircular canals or 247 CEPHALOPODA. an external Meatus, where a membranous sac is suspended which contains a little stone. The skin of these animals, of the Octopi particularly, changes colour in places, by spots, with a rapidity which greatly surpasses that of the Chameleon. These animals are voracious and cruel; possessed both of agility and numerous modes of seizing their prey, they destroy immense quantities of Fish arid Crustacea. Their flesh is eaten; their ink is employed in painting, and the Indian, or China ink is supposed to be made from it. The Cephalopoda comprise but a single order, which is divided into genera, according to the nature of the shell. Those which have no external shell, according to Linnams, form- ed but the single genus. Sepia, Lin. Or the Cuttle-fish, which is now divided into a variety of subgenera, the most interesting of which are the two following. Akgonatjta, Lin. These Mollusca are always found in a veiy thin shell, symmetrically fluted and spirally convoluted, the last whorl so large that it bears some resem- blance to a galley of which the spine is the poop. The animal makes a consequent use of it, and in calm weather whole fleets of them may be ob- served navigating the surface of the ocean, employing six of their tentacula as oars, and elevating the two membranous ones by way of a sail. If the sea becomes rough, or they perceive any danger, the Argonaut withdraws all its arms, concentrates itself in its shell, and descends to the bottom. Several species are known, closely resembling each other both in the ani- mal and the shell, which were united by Linnaeus under the name of Jlrgo- nauta argo, or the Paper Nautilus. Sepia, Lam. The Sepise, or Cuttle-fish properly so called, have two long arms and a fleshy fin extending along the whole length of each side of the sac. The shell is oval, thick, convex, and composed of numerous and parallel calca- reous laminae, united by thousands of little hollow columns, running perpen- dicularly from one to the other. This structure rendering it friable, causes it to be employed for polishing various kinds of work; it is also given to birds in aviaries, for the purpose of whetting their beaks. Nautilus, Lin. In this genus Linnxus united all spiral, symmetrical and chambered shells, 248 MOLLUSCA. that is to say such as are divided by septa into several cavities; their inha- bitants he supposed to be Cephalopoda. This genus is now divided into Spirula and Nautilus proper. Probably belong to this family, but it is impossible to ascertain the fact, as they are only found among fossils; every thing, however, proves them to have been internal shells, thin and double, that is, composed of two cones united at base, the inner one much shorter than the other, and divided into chambers by parallel septa, which are concave on the side next to the base. A siphon extends from the summit of the external cone to that of the in- ternal one, and continues thence, sometimes along the margin of the septa and sometimes through their centre. The interval between the two tes- taceous cones is filled with a solid substance here composed of radiating fibres, and there of self-involving conical layers, the base of each being on the margin of one of the septa of the inner cone. Of all fossils Belemnites are the most abundant, particularly in chalk and compact limestone. The Belemnites The Ammonites, Or the Cornua-Ammoni, also fossil, are distinguished from the Nautili by their septa, which, instead of being plane or simply concave, are angular and sometimes undulated, but most frequently slashed on the edge like the leaf of an acanthus. The smallness of their last cell seems to indicate that, like the Spirula, they were internal shells. They are very abundant in the strata of secondary mountains, where they are found varying from the size of a lentil to that of a coach wheel. Their subdivisions are based upon the variation of their volutes and siphons. The Nummulites, Lam. Commonly called Nummulites, lenticular stones, &c. are only found among fossils, and present, externally, a lenticular figure without any apparent opening, and a spiral cavity internally, divided by septa into numerous small chambers, but without a siphon. They constitute the most universally dif- fused of all fossils, forming entire chains of calcareous hills and immense bodies of building stone. PTEROPODA. 249 CLASS II. PTEROPODA. The Pteropoda, like the Cephalopoda, swim in the ocean, but being deprived of feet, can neither fix themselves to other bodies, nor crawl. Their organs of locomotion consist of fins placed like wings on the two sides of the mouth. But few and small species are known. Clio, Lin. Body oblong, membranous, without a mantle; head formed of two round- ed lobes, whence originate small tentacula; two small fleshy lips, and a little tongue on the front of the mouth; the fins covered with a vascular net-work which acts as branchiae. Some authors consider them as possessing eyes. Clio borealis, X,. This species, which is the most celebrated, is found in astonishing numbers in the arctic seas, furnishing, by its abundance, food for the Whales, although each individual is hardly an inch long. Cymbttlia, Peron. A cartilaginous or gelatinous envelope resembling a galley, or rather a sabot or wooden shoe, bristling with small points disposed in longitudinal rows. The animal has two large wings composed of a vascular tissue, which are its branchiae and fins; between them, on the open side, is a third and smaller lobe with three points. Pneumodermon, Cuv. The Pneumoderma begin to be a little farther removed from the Clios. Their body is oval, without a mantle and without a shell; the branchial are attached to the surface and composed of little lamina arranged in two or three lines so disposed as to form an H on the part opposite to the head. Limacina, Cuv. The body terminates in a spirally convoluted tail, and is lodged in a very thin shell formed by one whorl and a half, umbilicated on one side, and flattened on the other. The animal uses its shell as a boat, and its wings as oars, whenever it wishes to navigate the surface of the deep. Clio helicina. Almost as common on the arctic seas as the Clio borealis, and is considered as forming the chief source of food for the Whale. 250 MOLLUSCA. There are three other genera in this class, Hyalea, Cleodora, and Pyrgo, a very small fossil shell. CLASS III. GASTEROPODA. The Gasteropoda constitute a very numerous class of the Mol- lusca, an idea of which is afforded by the Slug. They generally crawl upon a fleshy disk, situated under the ab- domen, which sometimes however assumes the shape of a sulcus, or that of a vertical lamina. The back is furnished with a mantle which is more or less extended, takes various forms, and in the greater number of genera, produces a shell. Their head, placed anteriorly, is more or less visible, as it is the more or less involved under the mantle; its tentacula are very small, situated above the mouth and do not surround it, varying in number from two to six; sometimes they are wanting; their function is that of touch, or at most that of smell. The eyes are very small, here adhering to the head, and there to the base, side, or point of the tentaculum; some- times they are wanting. The position, structure, and nature of their respiratory organs vary, and afford the means of dividing them into several families; they never, however, have more than a single aortic heart, that is to say, one placed between the pulmonary vein and the aorta. Several are entirely naked; others have merely a concealed shell, but most of them are furnished with one that is large enough to re- ceive and shelter them. The shell is formed in the thickness of the mantle. Some of them are symmetrical and consist of a single piece; others are non- symmetrical, which, in those species where they are very concave, and where they continue to grow for a long time, become obliquely spiral. If we figure to ourselves an oblique cone, in which other cones, always wider in one direction than in the others, are successively GASTEROPODA. 251 placed, it will be easily seen that the convolution of the whole takes place on the side which enlarges the least. This part, on which the cone is rolled, is termed the columella; it is sometimes solid, and sometimes hollow. When hollow, its aperture is called the umbilicus. The whorls of the shell may either remain in one plane, or incline towards the base of the columella. In this last case the preceding whorls rise above each other, form- ing the spire, which is so much the more acute, as the whorls descend more rapidly, and the less they increase in width. These shells with a salient spine are said to be turbinated. When, on the contrary, the whorls remain nearly in the same place, and do not envelope each other, the spine is flat, or even con- cave. These shells are said to be discoidal. When the top of each whorl envelopes the preceding ones, the spire is hidden. The part through which the animal appears to come out is named the aperture. When the whorls remain nearly in the same plane, while the ani- mal crawls, its shell is vertical, the columella crosswise on the hind part of its back, and its head passes under the edge of the opening opposite to the columella. When the spire is salient, it inclines from the right side in almost every species; in a very few only does it project from the left when they are in motion; these are said to be reversed. It is observed that the head is always on the side opposite to that to which the spire is directed. Thus it is usually on the left, and in the reversed on the right. The organs of respiration, which are always situated in the last whorl of the shell, receive the ambient element from under its edge, sometimes because the mantle is entirely detached from the body along this edge, and sometimes because it is perforated there. It sometimes happens that the margin of the mantle is prolonged in a canal, in order to allow the animal to seek the ambient element without protruding its head and foot from its shell. Most of the aquatic Gasteropoda, with a spiral shell, have an operculum, a part sometimes horny, sometimes calcareous, attached to the posterior part of the foot, which closes the shell when its oc- cupant is withdrawn into it and folded up. 252 MOLLUSCA. Their organs of digestion vary as much as those of respiration. This class is so numerous that we have been compelled to divide it into a certain number of orders, which we have founded upon the position and form of the branchize. ORDER I. PULMONEA. The Pulmonea are distinguished from the other Mollusca by re- spiring elastic air through a hole opening under the margin of the mantle, and which they dilate and contract at will; they have no branchiae, but a mere net-work of pulmonary vessels which creep over the parietes of the respiratory cavity and chiefly on its ceiling. Some of them are terrestrial; others are aquatic, but are compelled to visit the surface from time to time for the purpose of opening the orifice of their pectoral cavity, or to respire. The Terrestrial Pulmonea have generally four tentacula; in two or three only, of a very small size, the lower pair are not to be seen. Those which possess no apparent shell, form in the Linnxan system the genus Limax, Lin. Which is now divided into Limax, Avion, Lima, Vaginulus, Testacella, and Farmacella. These animals are known by the common name of Slugs. In the terrestrial Pulmonea with complete and apparent shells, the edges of the aperture in the adult are usually tumid. Helix, Lin. To this genus Linnseus referred all those species in which the aperture of the shell, somewhat encroached upon by the projection of the penultimate whorl, assumes a crescent-like figure. Helix pomatia, L., common in the gardens and vineyards of France, with a reddish shell marked with paler bands, an animal which in some places is considered a delicious article of food. The genus is now variously subdi- vided. The animals are what we term Snails. 253 GASTEROPODA PULMONEA. The Aquatic Pulmonea have but two tentacula; they are con- tinually compelled to rise to the surface for the purpose of breath- ing, so that they cannot inhabit very deep water; they are usually found in fresh water or salt ponds, or at least in the vicinity of the sea coast and of the mouths of rivers. Some of them have no shell, such as those of the genus Onchidium. The aquatic Pulmonea, with complete shells, were also placed by Linnaeus in his genera Helix, Bulla and Voluta, from which it has been found necessary to separate them. In the first were comprised the two following genera, where we find the internal edge of the aperture crescent-shaped, as in Helix. Planorbis, Brug. The Planorbes are distinguished from the Helices by the slight increase of the whorls of their shell, the convolutions of which are nearly in one plane, and because the aperture is wider than it is high. It contains an animal with long, thin filiform tentacula, at the inner base of which are the eyes, and from the margin of whose mantle exudes a quantity of a red fluid, which is not, however, its blood. In stagnant waters. The Lam. Has, like a Bulimus, an oblong spire and the aperture higher than it is wide; but the margin, like that of a Succinea, is not reflected, and there is a longitudinal fold in the columella, which runs obliquely into the cavity. The shell is thin; the animal has two compressed, broad, triangular tentacula, near the base of whose inner edge are the eyes. They inhabit stagnant waters in great numbers; they also abound with the Planorbes in certain layers of marl or calcareous strata, which they evi- dently prove were deposited in fresh water. Piiysa, Drap. The Physac have a shell very similar to that of a Lymnaeus, but without the fold in the columella and reflected edge, and very thin. When the animal swims or crawls, it covers its shell with the two notched lobes of its mantle, and has two long, slender and pointed tentacula, on the greatly en- larged internal base of which are the eyes. They inhabit springs, 8tc. Auricula, Lam. Differing from all the preceding aquatic Pulmonea in the columella, which is marked with wide and oblique flutes. Their shell is oval or oblong, the aperture elevated as in Bulimus, and the margin tumid. Projecting folds in the columella, as in the Auriculae, but the margin of the Conovulus, Lam. 254 MOLLUSCA. aperture is not tumid, and the internal lip is finely striated; the general form of the shell is that of a cone, of which the spire forms the base. They in- habit the rivers of the Antilles. ORDER II. NUDIBRANCHIATA. The Nudibranchiata have no shell whatever; neither are they fur- nished with a pulmonary cavity, their branchiae being exposed on some part of the back. They are all marine animals, frequently swimming in a reversed position with the foot on the surface, con- cave like a batteau, and employing the margin of their mantle and their tentacula as oars. In the Doris, Cuv. The branchiae are arranged in a circle round an opening in the posterior part of the back, under the form of little arbusculae, the whole resembling a sort of flower. The mouth is a small proboscis, situated under the ante- rior margin of the mantle, and furnished with two little conical tentacula. The species are numerous, and some of them large. They are found in eveiy sea, where their ova, resembling gelatinous bands, are diffused over stones, sea-weeds, &c. Plocamoceros, Leuck. The anterior margin of their mantle is ornamented with numerous branched tentacula. PoLYCERA, CUV. The branchiae, as in Doris, on the hind part of the body, but more simple, and followed by two membranous laminae, which cover them in moments of danger; anterior to the claviform tentacula, similar to those in Doris, are four, and sometimes six others, simply pointed. Tritonia, Cuv. The body and superior tentacula, as in Doris; but the orifices through which the peculiar liquid is excreted, are on the right: the branchiae, which re- semble little trees, are arranged along the sides of the back, and the mouth, provided with broad membranous lips, is armed inside with two horny and trenchant lateral jaws, which may be compared to a pair of sheep-shears. GASTEROPODA NUDIBRANCHIATA. 255 Two rows of branchiae resembling branching tufts along the back, and a very large membranous and fringed veil on the head, which shortens as it curves under the mouth; this latter is a membranous proboscis without jaws; on the base of the veil are two compressed tentacula, from whose margin projects a small conical point. T. fimbria, L. Grey, spotted with white; a beautiful species from the Mediterranean. Tkethys, Lin. SCYLLJEA, Lin. Body compressed; the foot narrow and marked with a furrow which enables it to clasp the stems of the fuci; no veil; the mouth resembling a little pro- boscis; orifices as in Thethys; the compressed tentacula terminated by a cavity, from which issues a little uneven point, and two pairs of membranous crests on the back, the internal surface of which is furnished with pencils of filaments, which are the branchiae. The middle of the stomach is invested with a fleshy ring, internally armed with horny and trenchant laminae like knives. S. pelagica, L. Common on all the floating fucus of almost every sea. Body elongated; four very small conical tentacula, and on each side three branchiae, each of which are formed of long slips arranged like the sticks of a fan, which also aid them in swimming. They are beautiful little ani- mals that inhabit the Mediterranean and the Atlantic, prettily coloured with blue and nacre; they swim on their back with great swiftness. The remaining genera of this order are Laniogerus, Eolidia, Cavolina, &c. Glauctts, Forster. ORDER III. INFEROBRANCHIATA. The Inferobranchiata have nearly the same form and organiza- tion observed in Doris and Tritonia, but their branchiae, instead of being placed on the back, resemble two long series of laminae, situ- ated on the two sides of the body, under the projecting margin of the mantle. PlITLLIDIA, CUV. The mantle naked, usually coriaceous, and without any shell; the mouth, a small proboscis, each side of which is furnished with a tentaculum; two others 256 MOLLUSCA. project from above two small cavities in the mantle. Several species inha- bit the Indian Ocean. Diphyelidia, Cuv. The bran chi a; similar to those of the Phyllidise, but the posterior part of the mantle more pointed; on each side of the semicircular head a pointed tenta- culum and a slight tubercle. ORDER IV. TECTIBRANCHIATA. The branchiae along the right side or on the back, composed of laminae more or less divided, but not symmetrical; they are more or less covered by the mantle, in which a small shell is generally contained. They approach the Pectinibranchiata in the form of the organs of respiration, and like them inhabit the Ocean. Pletjrobkatvciius, Cuv. The body equally overlapped by the mantle and by the foot, as if it were between two shields. In some species a little, oval, calcareous lamina is contained in the mantle, and a horny one in that of others; the mantle is emarginated above the head. The branchiae are attached along the right side in the furrow, between the mantle and the foot, forming a series of pyramids divided into triangular laminulse. The mouth, a small proboscis, is surmounted by an emarginated lip and by two tubular and cleft tentacula. Various species inhabit both the Mediterranean and the Atlantic, some of which are large and marked with the most beautiful colours. PleurobranchjEA, Meckel. The branchiae situated as in Pleurobranchus; but the foot projects but little, and on the fore part of the former are four short, distant tentacula, forming a square that reminds the observer of the anterior disk of the Acerae. There is no vestige of a shell. Pleurob. Meckdii. The only species known; from the Mediterranean. Aplysia, Lin. The margin of the foot turned up into flexible crests, surrounding the back, and even susceptible of being reflected over it; the head supported by a neck more or less long; two superior tentacula excavated like the ears of a quadruped, with two flattened ones on the edge of the lower lip; the eyes GASTEROPODA TECTIBRANCHIATA. 257 above the former. The branchiae are on the back, and consist of highly complicated lamellae attached to a broad membranous pedicle, covered by a small membranous mantle, in the thickness of which is a flat and horny shell. A limpid humour, secreted by a particular gland, and which in cer- tain species is said to be extremely acrid, is exuded through an orifice be- low on the right, and from the edges of the mantle oozes an abundant liquid of a deep purple colour, with which, when in danger, the animal tinges the water for a considerable extent. The ova are deposited in a kind of long, interlaced glairy net work, of extreme tenuity. In the seas of Europe we have the Jipl. fasciata, black, margined with lateral red crests, one of the large species; and Jipl. punctata, Cuv., lilac, sprinkled with greenish points. The Dolabellse only differ from Aplysiae in the position of the branchiae and their surrounding envelope; they are at the posterior extremity of the body, which resembles a truncated cone. They are found in the Mediterranean and in the Indian Ocean. Dolabella, Lam. Notarohus, Guv. The lateral crests united and covering the back, a longitudinal emargination excepted, that leads to the branchiae, which have no mantle to cover them, but are otherwise like those of the Aplysiae; the rest of their organization is always the same. Akera, Muller. The branchiae covered as in the preceding1 genera, but their tentacula are so shortened, widened and separated, that they seem to be totally wanting, or rather to form a large, fleshy, and nearly rectangular shield, under which are the eyes. The shell, of such as have any, is more or less convoluted, but with little obliquity, and is without a projecting spire, emargination, or canal; the columella, projecting convexly, gives a crescent-like figure to the aperture, the part opposite to the spire being always the broadest and most rounded. M. de Lamarck names those in which the shell is concealed in the thick- ness of the mantle, Bull tea. It has but very few whorls, and the animal is much too large to be drawn into it. Bullaea aperta, Lam. The animal is whitish, and about an inch long; the fleshy shield, formed by the vestiges of its tentacula, the lateral swellings of its foot, and the mantle occupied by the shell, seem to divide its upper surface into four lobes. Its thin, white, semi-diaphanous shell, is nearly all aperture, and its gizzard is armed with three very thick rhomboidal pieces of bone. It is found in almost every sea, where it lives on oozy bottoms. The 258 MOLLUSCA. Gastropteron, Meek. Appears to be an Akera, the margin of whose foot is extended into broad wings, used in natation, which it effects on its back. It has no shell, nor has the stomach any armature; a slight fold of skin is the only vestige of a branchial operculum that is perceptible. Gastroplax, Blainv.—Umbrella, Lam. The animal is large and circular, the foot projects considerably beyond the mantle, and its upper surface is studded with tubercles. The viscera are in a round, superior, and central part. The mantle is only visible by its slightly projecting and trenchant edges, along the whole of the front and of the right side. The lamellated pyramidal branchiae, like those of Pleuro- branchus, are under this slight margin. Under this same margin and for- wards, are two tentacula, longitudinally cleft, as in Pleurobranchus, at whose internal base are the eyes; between them is a kind of proboscis. There is a large concave space in the anterior margin of the foot, the edges of which are susceptible of being drawn up like the mouth of a purse, and at the bottom of which is a tubercle pierced by an orifice, which perhaps is the mouth, and surmounted by a fringed membrane. The inferior surface of the foot is smooth, and serves the animal to crawl on, as in the other Gasteropoda. The shell is stony, flat, irregularly rounded, thickest in the middle, with trenchant edges, and marked with slightly concentric striae. ORDER V. HETEROPODA, Lam. The Heteropoda are distinguished by their foot, which, instead of forming a horizontal disk, is compressed into a vertical muscular lamina, which they use as a fin, and on the edge of which, in seve- ral species, is a dilatation forming a hollow cone, that represents the disk of the other orders. Their branchiae, composed of plumiform lobes, are situated on the hind part of the back, directed forwards, and immediately in their rear are the heart and a small liver, with part of the viscera. Their body, a gelatinous and transparent sub- stance lined with a muscular layer, is elongated and usually termi- nated by a compressed tail. There is a muscular mass belonging to the mouth, and a tongue furnished with little hooks. They usually swim on their back with the foot upwards. They have the GASTEROPODA HETEROPODA. 259 faculty of distending their body by filling it with water, in a way not well understood. Forskahl comprised them all in his genus Pterotrachea, Which is now divided into Carinaria, Atlanta, Firola, Timorienna, Mono- phora, Phylliroe. The Argonauta vitrea of authors must be the shell of a Carinaria, but the animal is not yet known. ORDER VI. PECTINIBRANCHIATA. This order forms, beyond all comparison, the most numerous divi- sion, inasmuch as it comprises the whole of the spiral univalves, and several that are simply conical. Their branchiae, composed of nu- merous lamellae or strips laid parallel with each other, like the teeth of a comb, are attached on one, two, or three lines, according to the genus, to the ceiling of the pulmonary cavity, which occupies the last whorl of the shell, and which has a large opening between the edge of the mantle and the body. In two genera only, Cyclostoma and Helicina, do we find, instead of branchiae, a vascular net-work, covering the ceiling of a cavity, that is otherwise similar; they are the only ones that respire the na- tural air; all the others respire water. All the Pectinibranchiata have two tentacula and two eyes, some- times placed on particular pedicles, and a mouth resembling a more or less elongated proboscis. Their tongue is armed with little hooks, and by slow and repeated rubbing acts upon the hardest bodies. The greatest difference in these animals consists in the presence or absence of the little canal formed by a prolongation of the edge of the pulmonary cavity of the left side, and which passes through a similar canal or ernargination in the shell, to enable the animal to breathe without leaving its shelter. There is also this distinction between the genera—some of them have no operculum; the species differ from each other by the filaments, fringes, and other ornaments of the head, foot, or mantle. These Mollusca are arranged in several families according to the 260 MOLLUSCA. form of their shell, which appears to bear a constant relation to that of the animal. FAMILY I. TROCHOIDA. This family is known by the shell, the aperture of which is entire, without an emargination or canal for a siphon of the mantle, as the animal has none, and is furnished with an operculum or some organ in place of it. Trochus, Lin. The external margin of the angular aperture approaching more or less to a perfect quadrangular figure, and in an oblique plane, with respect to the axis of the shell, because the part of the margin next to the spine projects more than the rest. Most of these animals have three filaments on each edge of the mantle, or at least some appendages to the sides of the feet. The Solarium:, Lam. Is distinguished from all other Trochi by a very broad conical spire, at the base of which is an extremely wide umbilicus, in which may be seen the internal edges of all the whorls, marked by a crenated cord. Evomphalus, Sower'oy. Fossil shells resembling a Solarium, but wanting the dentations on the internal whorls of the umbilicus. The genus Turbo, Lin. Comprehends all the species with a completely and regularly turbinated shell, and a perfectly round aperture. Close observation has caused them to be greatly subdivided. These subdivisions are Delphinula, Pleurotoma, Turritella, Scalaria and Cyclostoma. The last is terrestrial and found under moss and stones in woods. The Valvata, another subgenus, is found in stagnant water. It is here that we must place the completely aquatic shells, or those respiring by branchi®, which belong to the old genus Helix; i. e., those in which the penultimate whorl forms, as in the Helices, Lymnaeae, &c., a depression which gives the aperture more or less of the figure of a crescent. The three first genera are still closely allied to Turbo. GASTEROPODA PECTINIBRANCHIATA. 261 Paludina, Lam. This genus has lately been separated from the Cyclostomx, because there is no ridge round the aperture of the shell; because there is a small angle to that aperture as well as to the operculum; and finally, because the ani- mal, being provided with branchiae, inhabits the water, like all other genera of this family. It has a very short snout and two pointed tentacula; eyes at the external base of the latter, but on no particular pedicle, and a small membranous wing on each side of the fore part of the body. The anterior edge of the foot is double; and the wing of the right side forms a little ca- nal which introduces water into the respiratory cavity, the incipient indica- tion of the siphon in the following family. The Ocean produces some shells which only differ from the Paludinse in being thick. They form the Littorina, Feruss. Of which the common species, Le Vigneau—Turbo littoreus, L., abounds on the coast of France, where it is eaten. The shell is round, brown, and longitudinally streaked with blackish. The Piiasianella, Lam. An oblong or pointed shell, similar to that of several Bulimi and Lymnaeae; the aperture also higher-than it is wide, and furnished with a strong oper- culum; base of the columella sensibly flattened, but no umbilicus. They inhabit the Indian Ocean, and are much sought for by collectors on account of the beauty of their colours. The animal is provided with two long tentacula, with eyes placed on two tubercles at their external base, and with double lips that are emarginated and fringed, as well as the wings, each of which has three filaments. A round, ventricose shell, with a short spire, as in most of the Helices; the aperture higher than it is wide, and provided with an operculum; the colu- mella umbilicated. They inhabit the fresh or brackish waters of hot countries. The animal has long tentacula, and eyes placed on pedicles at their base. AMruLLARiA, Lam. Heiicista, Lam. Judging by the shell, the Helicinae are Ampullariae in which the margin of the aperture is reflected. A thicker shell; the aperture, higher than it is wide, enlarges opposite to the spire; the columella without plicae or umbilicus; length of the spire very various. The Melania: inhabit rivers, but are not found in France; the animal has Melania, Lam. 262 MOLLUSCA. long- tentacula, the eyes being on their external side, and at about the third of their length. Tornatella, Lam. The shell is elliptical, the spire but slightly salient, the aperture lengthened into a crescent and widened below, and the base of the columella marked by one or two large plicae or oblique callosities. Pyramidella, Lam. The spire is turreted, the aperture crescent-like and wide, and the base of the columella obliquely contorted and marked with sharp spiral plicae. The form of the animal separates the Janthinae from all the preceding genera. Their shell, however, is similar to that of the terrestrial Limaces, the columellar margin being also indented, but slightly angular at the ex- ternal edge, and the columella somewhat extended beyond the half oval, which, without this prolongation, would be formed by that edge. The animal has no operculum, but the under surface of its foot is furnish- ed with a vesicular organ resembling a bubble of foam, but composed of a solid substance, which prevents it from crawling, but allows it to float on the surface of the water. The head, a cylindrical proboscis, terminated by a vertically cleft mouth, and armed with little hooks, has a bifurcated tenta- culum on each side. The common species, Helix janlhina, L-, has a pretty violet shell, and is very abundant in the Mediterranean. When the animal is touched, it dif- fuses a thick fluid of a deep violet colour that dyes the surrounding water. Janthina, Lam. Nerita, Lin. The columella of the Neritae being in a straight line, renders the aperture semicircular or semi-elliptical. This aperture is generally large in com- parison with the shell, but is always furnished with an operculum which completely closes it. The spire is almost effaced, and the shell semi-glo- bular. The genus now forms several subdivisions. FAMILY II. CAPULOIDA. Recent researches have convinced us that it is to the Trochoida that we must approximate this family, which contains five genera, four of which are taken from the Patellas. They all have a widely opened,scarcely turbinated shell, with neither operculum, emargi- GASTEROPODA PECTINIBRANCHIATA. 263 nation nor syphon; the animal resembles the other Pectinibranchi- ata. There is but one branchial comb transversely arranged on the roof of the cavity, and its filaments are frequently very long. Pileopsis, Lam. A conical shell with a recurved and spiral summit, which has long caused it to be placed among the Patellae; the branchiae are in one range under the anterior margin of the branchial cavity; the proboscis is long, and there is a closely plaited membranous veil under the neck; the eyes are at the ex- ternal base of the conical tentacula. The Hipponyx, Defr. Would appear from the shell to be a fossil Pileopsis, very remarkable, how- ever, for a bed, formed of calcareous matter, on which it rests, and which probably exuded from the foot of the animal. The shell oval, with an obtuse horizontal point, directed obliquely backwards and laterally, the aperture forming the base of the shell, which is half closed beneath and behind by a horizontal plate. The abdominal sac which con- tains the viscera is on this plate, the foot beneath, and the head and branchiae forwards. The latter consists of a range of long filaments attached under the anterior margin of the branchial cavity. The eyes are at the external base of two conical tentacula. The genus Crepideea, Lam. Appears to consist of Crepidulse in which the transverse plate occupies half the aperture; their shell, however, is more like that of a Patella. They are only found fossil. Pileolus, Sowerby, The shell resembles a Crepidula, except that the summit is symmetrical and laid on the posterior margin, and that the horizontal plate is less salient. The animal is also provided with an additional, irregularly shaped, testaceous plate, horizontally connected with the superior surface of the muscular disk of its foot, and covered by the abdominal sac, which it partially supports. It is probably analogous to an operculum, but does not exercise its functions, being in a measure situated internally. The animal has long tentacula, at whose external base are pedicles which support the eyes. They inhabit the rivers of hot countries. In the Navicexla, Lam. We observe a conical shell, in the hollow of which is a little lamina that projects inwards, resembling1 the commencement of a columella, and that Caxyptieea, Lam. 264 MOLLUSCA. interposes itself between a fold of the abdominal sac. The branchiae are composed of a range of numerous filaments, long and slender, like hairs. Siphon aria, Sowerby. The shell of the Siphonariae, which have been recently separated from the Patellae, at the first glance seems very similar to a flattened Patella, with radiating sulci; but its margin projects rather more on the right side, and it is excavated beneath by a slight furrow, which terminates at this promi- nence of the margin, to which there is a corresponding lateral hole in the mantle, for the introduction of water into the branchial cavity, placed on the back, that is closed on every other point. The respiratory organ con- sists of a few small lamella;, arranged in one transverse line on the roof of that cavity; the tentacula seem to be wanting, the head being merely fur- nished with a narrow veil. Sigaretus, Adans. The shell is flattened, its aperture ample and round, and the spire very moderate, its whorls rapidly enlarging and seen within, but concealed dur- ing the life of the animal in the thickness of a fungous shield, which projects considerably beyond it, as well as the foot, and which is the true mantle. Before this mantle are an emargination and a semi-canal, which serves to conduct water into the branchial cavity, and which form the passage to the following family, but of which there are no impressions on the shell. The tentacula are conical, with the eyes at their external base. The shell, resembling1 that of a Sigaretus, with the head and abdomen, which it covers, supported by a foot four times its size, cut square behind, and forming before a fleshy, oblong bundle that constitutes nearly one half of its mass. The animal has a flat head, two tentacula and a broad bran- chial comb on the roof of its dorsal cavity. Cryptostoma, Blainv. FAMILY III. BUCCINOIDA. This family has a spiral shell, in the aperture of which, near the extremity of the columella, is an emargination or a canal for trans- mitting the siphon or tube, which is itself but an elongated fold of the mantle. The greater or less length of the canal, when there is one, the size of the aperture, and the form of the columella, furnish the grounds of its division into genera, which may be variously grouped. GASTEROPODA PECTINIBRANCHIATA. 265 Conus, Lin. So called from the conical shape of the shell; the spire, either perfectly flat, or but slightly salient, forms the base of the cone, the apex being at the opposite extremity; the aperture is narrow, rectilinear, or nearly so, extend- ing from one end to the other without enlargement or fold, either on its edge or on the columella. The thinness of the animal is proportioned to the narrowness of the aperture through which it issues; its tentacula and proboscis are highly protractile; the eyes are placed on the outer side of the former, and near the point; the operculum, situated obliquely on the hind part of the foot, is too narrow and short to close the whole of the aperture. The shells of this genus, being usually ornamented with the most beauti- ful colours, are very common in cabinets. The seas of Europe produce very few. Lin. The spire projecting but little, and the aperture narrow and extending from one extremity to the other; but the shell, which is protuberant in the mid- dle, and almost equally narrowed at both ends, forms an oval, and the aperture in the adult animal is transversely wrinkled on each side. The mantle is sufficiently ample to fold over and envelope the shell, which at a certain age it covers with a layer of another colour. The animal has moderate tentacula, with the eyes at their external base, and a thin foot without an operculum. The colours of these shells, also, are extremely beautiful; they are ex- tremely common in cabinets, though with very few exceptions they all in- habit the seas of tropical countries. Ovula, Brug. The shell is oval, and the aperture narrow and long, as in Cypraea, but with- out plicae on the side next to the columella; the spire is concealed, and the two ends of the aperture equally emarginated, or equally prolonged in a canal. The animal has a broad foot, an extended mantle which partly folds over the shell, a moderate and obtuse snout, and two long tentacula, on which, at about the third of their length, are the eyes. An oblong shell, with a narrow aperture, without plicae or wrinkles, and in- creasing regularly in width to the end opposite the spire, which is more or less salient, according to the species. The animal is not known. The Terebellum, Lam. Varies as to the form of the shell and that of the aperture, but is recognized by the emargination without a canal which terminates it, and by the salient and oblique plicae of the columella. From this genus Brugieres first separa- ted the Voluta, Lin. 266 MOLLUSCA. So named from the oblong and elliptical shape of the shell, the aperture of which is narrow, long and emarginated opposite to the spire, which is short; the plicae of the columella are numerous, and resemble striae; the whorls are sulciform. These shells are quite as beautiful as the Cyprsese. The animal has a large foot, the anterior part of which (before the head) is separated by an incision on each side; its tentacula are slender, and the eyes are on their side about the middle of their length. The proboscis and siphon are tolerably long; but it has no operculum. The remainder of the genus Voluta was afterwards divided into five, by M. de Lamarck. They are Volvaria, Voluta, Marginella, Mitra and Cancellaria. Oliva, Brug., This genus comprises all the shells furnished with an emargination or a short canal inflected to the left, and in which the columella is destitute of plica:. Brugieres has divided them into the four genera of Buccinum, Purpura, Cassis, and Terebra, part of which have been again subdivided by Messrs de Lamarck and Montfort. The Buocinum, Lin. Buccinum, Brug. Includes the emarginated shells without any canal, whose general form, as well as that of the aperture, is oval. The animals, all such as are known, are deprived of the veil on the head, but are furnished with a proboscis, two separated tentacula, on the external side of which are the eyes, and a horny operculum. Their siphon extends out of the shell. The side of the columella is covered by a more or less broad and thick plate, and the emargination is deep, but without a canal. The animal re- sembles that of a true Buccinum, and there are gradual transitions among the shells, from one sub genus to the other. Nassa, Lam. E burn a, Lam. A smooth shell without a plicate.d margin, and a widely and deeply um- bilicated columella. The general form of their shell js closely allied to that of the Oliva. Their animal is unknown. Ancillaria, Lara. The same smooth shell, and at the lower part of the columella a marked lip; there is no umbilicus, neither is the spire sulcated. The animal of several species resembles that of the Oliva:, the foot being still more de- veloped. GASTEROPODA PECTINIBRANCHIATA. 267 Those in which projecting ribs, that follow the direction of the whorls, render the margin undulated; the inferior whorl is ample and ventricose. Doeicm, Lam. IIaiifa, Lam. The Harpse are easily recognized by the projecting, transverse ribs on the whorls; the last of which forms a lip on the margin. The shell is beau- tiful, and the animal has a very large foot, pointed behind, and widened in its anterior portion, which is distinguished by two deep emarginations. The eyes are on the sides of the tentacula, and near their base. It has neither veil nor operculum. The Is known by its flattened columella, which is trenchant near the end op- posite to the spire, and which, with the external margin, forms a canal there, sunk in the shell, but not salient. The animal resembles that of a true Buccinum. The remaining subgenera are Concholepas, Cassis, Cassidaria and Terebra. Purpuha, Brug. Cerituium, Brug. A shell with a turriculated spire; the aperture is oval, and the canal short, but well marked, and reflected to the left or backwards. The animal has a veil on its head, and is furnished with two separated tentacula, on the side of which are the eyes, and with a round, horny operculum. Many are found fossil. Murex, Lin. This genus comprises all those shells in which there is a salient and straight canal. The animal of each subgenus is furnished with a proboscis, long approximated tentacula, on the external side of which are the eyes, and with a horny operculum; the veil on the head is wanting, and, the length of the siphon excepted, it otherwise resembles that of the Buccina. Brugiere divides them into genera, which have been since subdivided by Messrs La- marck and Montfort. The Mu rex, Brug. Includes all those which have a salient and straight canal, with varices across the whorls. Raneeea, Lam. Characterized by opposing- varices, so that the shell is bordered with them on both sides. Their canal is short, and their surface studded with mere tubercles; margins of the aperture plicated. The 268 MOLLUSCA. Comprises all shells with a salient and straight canal, which are destitute of varices. Ftrsus, Brug- Turns ineela, Lam., Also consists of shells with a straight canal, but without varices, distin- guishable by the large transverse plicae on their columella, which extend the whole length of the aperture, and which closely approximate them to the conical Volute; they only differ from the latter in the elongation of their aperture into a sort of canal. The genus Includes those shells with a canal that is either straight or inflected towards the right, of which the external margin of the aperture dilates with age, but still preserves a sinus near the canal, under which passes the head of the animal when it extends itself. In most of them the sinus is at some distance from the canal. They are subdivided by M. de Lamarck into two subgenera, Strombus and Pte- BOCEHA. Strombus, Lin. ORDER VII. TUBIJLIBRANCHIATA. The Tubulibranchiata should be detached from the Pectinibran- chiata, with which they are very closely allied, because the shell, which resembles a more or less irregularly shaped tube, only spiral at the commencement, attaches itself to various bodies. A tubular shell whose whorls, at an early age, still form a kind of spire, but then continue on in a tube more or less irregularly contorted, or bent like the tubes of a Serpula. This shell usually attaches itself by interlacing with others of the same species, or is partly enveloped by Lithophytes: the ani- mal, having no power of locomotion, is deprived of a foot, properly so called; but the part which in ordinary Gasteropoda forms the tail, is here turned under it, and extends to beyond the head, where its extremity becomes in- flated and furnished with a thin operculum; when the animal withdraws into its shell, it is this mass which closes the entrance; it is sometimes seen with various appendages, and in certain species the operculum is spiny. Vermetus, Adans. GASTEROPODA TUBUGIBRANCIIIATA. 269 The Magili have a longitudinally carinated tube, which is at first regularly spiral, and then extends itself in a line more or less straight; although the animal is unknown, it is highly probable that it should be placed near the Vermeti. The Magilus, Montf. Siliquaria, Brug. Resembles Yermetus in the head, the position of the operculum, and in the tubular and irregular shell; but there is a fissure on the whole length of this shell which follows its contour, and which corresponds to a similar cleft in that part of the mantle which covers the branchial cavity. Along the whole side of this cleft is a branchial comb, composed of numerous, loose and tab- ular-like lamella;. ORDER VIII. SCUTIBRANCHIATA. The Scutibranchiata comprise a certain number of Gasteropoda, similar to the Pectinibranchiata, in the form and position of the branchiae, as well as in the general form of the body. Their shells are very open, without an operculum, and most of them without the slightest turbination, so that they cover these animals, and particu- larly their branchiae, in the manner of a shield. The Is the only genus of this order in which the shell is turbinated; it is distin- guished from that kind of shell by the excessive amplitude of the aperture, and the flatness and smallness of the spire, which is seen from within. This form has caused it to be compared to the ear of a quadruped. In tire true Halyotes, the sh