CHAPTER XV. REPORT UPON THE COLLECTIONS OF TERRESTRIAL AND FLUVIATILE MOLLUSCA MADE IN PORTIONS OF COLORADO, UTAH, NEW MEXICO, AND ARIZONA, DURING / , /Li THE YEARS 1872, 1873, a*d 1874. { 7 IJY Dr. H. O. YARROW. 923 CHAPTER XV. The collections upon which the following report and list are based were placed in the hands of Mr. George W. Try on, jr., Mr. W. G. Binney, Mr. Tem- ple Prime, and Dr. James Lewis for determination, and it is to their kind- ness that we are indebted, not only for the identifications given, but for valuable notes in regard to the different species. To the latter gentleman our thanks are due for a criticism and revision of the manuscript of this report. A communication made by Mr. Try on to the Academy of Natural Sciences in regard to the collection of 1872 is by his permission appended to the report, and it will be seen that some valuable facts in regard to the dis- tribution of various genera have been evolved by this series of shells, small though it may be. The collection of 1872 was made in Utah and Nevada, principally by Mr. H. W. Henshaw and Dr. H. C. Yarrow, with the kind assistance of dif- ferent members of the expedition; that of 1873, for the most part in Colo- rado Territory, by Dr. J. T. Rothrock and Mr John Wolf, the botanists of the expedition; and that of 1874, in Colorado, New Mexico, and Arizona, by collectors of the expedition. . Although we are able to chronicle but few discoveries, the report is thought to possess a certain degree of value with regard to the limits advanced of range and distribution. A tolerably abundant synonymy has been given, compiled from vari- ous works on conchology, the principal of which are those of Messrs. Bin- ney, Bland, and Tryon. The classification adopted is substantially in accordance with Prof. Theodore Gill’s “Arrangement of the Families of Mollusks”, published by the Smithsonian Institution in February, 1871, and to this gentlemen thanks are also due for assistance and advice. 925 926 ZOOLOGY—MOLLUSCA. Class GASTEROPODA. Subclass PULMONIFERA. Order PULMONATA Suborder GEOPHILA. Pam. HELICIDAE. Subfamily PUPIN^E. Genus PUPA. Subgenus Leucochila. A number of specimens of this genus were found, and probably belong to the first following species. PUPA FALLAX, Hay. Cyclostoma marginata, Say, Johr. Acad. Nat. Sci. Phila., ii, 1821, 172.—Say, Conch., Binney’s ed., 22. Bulimus marginatus, Pfeiffer, Mai. Blatt, 1194.—Id., Mon. Hel. Yiv., 414.—W. G. Binney, Terr. Moll., iv, 13G. Bulimus fallax, GOULD, Terr. Moll., ii, 288, pi. lii, f. 1. Pupa fallax, Say, Jour. Acad. Nat. Sci. Phila., v, 1825, 121.—Say, Conch., Binney’s ed., 28.—Gould, Invertebrat., 1841, 192, f. 123 (excl. syn. Placida).—Id., Bost. Jour. Nat. Hist., 1843, iv, 357, pi. xvi, f. 15.—DeKay, N. Y., Moll. 1843, 51, pi. 35, f. 331.—Pfeiffer, Mon. Hel. Yiv., ii, 309; iii, 333.—Chemnitz, ed. 1844, 2, 58, pi. xii, figs. 20,21.—Binney & Bland, Land & Fresh Water Shells N A., 1867, 239.—Binney, Bui. Mus. Comp. Zool., iii, No. 9,194. Pupa parraiana, D’Orbigny, Moll. Cuba, 1853, 181, pi. xii, figs. 9-11. Pupa albilabris, Adams, Yerm. Moll., 1842, 158.—Id., Amer. Jour. Sci. & Arts, xl, 271. Pupilla fallax, Morse, Am. Nat., 1868, 609, f. 53. Paludina turrita, Menke?, Syn. M6th., 40. Common throughout the entire Eastern Province, which comprises all that remaining portion of the continent north of Mexico not included in the Pacific or Central Provinces. No. Locality. Date. Collector. C South Park, Colo July, 1873 J. Wolf. L Twin Lakes, Colo Aug., 1873 Do. 271 A 1 Pagosa, Colo Sept., 1874 Dr. H. C. Yarrow. PULMONATA—IIELICIDAE—VERTIGO OVATA. 927 Subgenus Pupilla. PUPA MUSCORUM, Linn. Pupa badia, Adams, Boat. Jour. Nat. Hist., iii, 331, pi. iii, f. 18.—Id., Verm. Moll., 137.—Gould, Boat. Jour. Nat. Hist., iii, 404, 300.—DeKay, N. Y. Moll., 40, pi. iv, f. 45.—Chemnitz, ed. 2, 117, pi. xv, figs. 25-29.—Binney, Terr. Moll., 323, pi. Ixx, f. 3.—W. G. Binney, Terr. Moll., iv, 142. Pupa muftcorum, Linn., part. Pfeiffer, Mon. Ilel. Viv., iv, 060, &c. Pupilla badia, Morse, Jour. Port. Soc., i, 1804, 37, figs. 89, 91, pi. x, f. 92.—Id., Am. Nat., i, 1808, 009, f. 52. Has been found in the islands of the Gulf of Saint Lawrence, and in Maine; Vermont; Crown Point, New York (Binney) ; also in Colorado. Is also widely distributed in Europe. The specimens secured by the expedi- tion were found at an altitude of 9,500 feet, on wet ground. No. Locality. Date. Collector. Z Twin Lakes, Colo. Aug. 5, 1873 J. Wolf. PUPA BLANDI, Morse. Pupilla blandi, Morse, Ann. N. Y. Lyc., Nov., 18G5, viii, 211, f. 8. Pupa blandi, W. G. Binney, Exp. Neb., Ex. Doc. 25th Congress 2d Session, ii, pt. 2, 1859, 725 (no description). Collected by expedition in the vicinity of Twin Lakes, Colorado, at an altitude of over 9,000 feet. No. Locality. Date. Collector. 16 Aug., 1873 J. Wolf. Genus VERTIGO, Muller. Subgenus Isthmia, Gray. VERTIGO OVATA, Say. Vertigo ovata, ISAY, Jour. Acad. Nat. Sci. Pliila., ii, 1822, 375.—Say, Conch., Binney’s ed., 2(5.—Binney, Terr. Moll., ii, 334, pi. lxxi, f. 4.—W. G. Binney, Terr. Moll., iv, 148.—Morse, Am. Nat., i, 18G8, 008, figs. 57, 58.—Binney & Bland, Laud & Fresh Water Shells N. A., 1809, 252.—Binney, Bull. Mus. Comp. Zool., iii, No. 9, 195. 928 ZOOLOGY—MOLLUSCA. Pupa ovata, Gould, Bost. Jour. Nat. Hist., iv, 1843, 350, pi. xvi, figs. 7, 8.—DeKay, N. Y. Moll., 1843, 50, pi. iv, f. 50.—Adams, Verm. Moll., 1842, 157.—Id., Am. Jour. Sci. & Arts, xl, 271.—Kuster, in Chemnitz, ed. 2, 118, pi. xiv, figs. 1, 2; pi. xv, figs. 35-38.—Pfeiffer, Mon. Hel. Viv., ii, 300.—Id., Symbol®, ii, 54. Pupa modesta, Say, Long’s Exped. Kocky Mts., 1824, ii, 25, pi. xv, f. 5.—Id., Binney’s ed., 32, pi. lxiv, f. 5.—Gould, Inverteb., 1841, 188, f. 119. Pupa ovulum, Pfeiffer, Olim, Symbol®, i, 4G. Isthmia ovata, Morse, Jour. Port. Soc., i, 1864, 38, f. 93, pi. x, f. 94. Belongs to the Interior Region of the Eastern Province, and is widely distributed from Maine to Mexico, and still farther north and west, and in Cuba. No. Locality. Date. Collector. L3L Twin Lakes, Colo Aug., 1873 J. Wolf. z Sept., 1873 Do. N Saguache, Col Do. Two remaining sets of specimens have not yet been identified. They were found at an altitude of 9,000 feet in moist, wet, boggy ground. VERTIGO SIMPLEX, Gould. Pupa simplex, Gould, Bost. Jour. Nat. Hist., iii, 1840, 403, pi. iii, f. 21.—Id., ib., iv, 1843, 359.—Id., Invertel)., 1841, 190, f. 121.—Pfeiffer, Mon. Hel. Viv., ii, 302.—DeKay, N. Y. Moll., 1843, 52, pi. xxxvi, f. 347.—Binney, Terr. Moll., ii, 343, pi. lxxii, f. 3. Vertigo simplex, Stimpson, Shells N. E., 53 (no description).—W. G. Binney, Terr. Moll., iv, 148.—Morse, Am. Nat., i, 18G8, G70, figs. G7, G8. Found in Canada and New England (Binney); also in Colorado, in boggy ground. No. Locality. Date. Collector. J 3 South Park, Colo Aug., 1873 J. Wolf. L Twin Lakes, Colo Do. PULMONATA—IIELICIDAE—nELICODISCUS LINEATUS. 929 Subfamily HELICINAE. Genus STENOTREMA, Raf. STENCTREMA MONODON, Rackett. Ilelix monodon, Rackett, Linn. Trans., xiii, 1822,42, pi. v, f. 2.—Id., ed. Chenu., 2G9, pi. xxvii, f. 5.—Wood, Ind., suppl., 1828, pi. vii, f. 15; ed. Hanley, 22G, f. 15.— Binney, Bost. Jour. Nat. llist., iii, 1840, 3G0, pi. x, f. 1.—Id., Terr. Moll., ii, 147, pi. xli, lower fig.—Gould, Inverted)., 1841, 174, f. 113.—Adams, Verm. Moll., 1842, 159.—W. G. Binney, Terr. Moll., iv, GO.—DeKay, N. Y. Moll., 1843, 35 (pt. excl. syn.), pi. iii, f. 19 (not f. 21 a, b).—Mbs. Gray, Fig. Moll. An., pi. cxciii, f. 11 (ex Bost. Jour. Nat. Hist., no deser.).—Billings Canadian Nat., ii, 1857, 100, f. G.—Morse, Am. Nat., i, 18G7,151, ligs. 12, 13.—Pfeiffer, Mon. Hel. Viv., iv, 320. Uclix convexa, Chemnitz, part. (excl. syn. et tab. lxvi, f. 24-27), pi. x, figs. 17, 18 — Pfeiffer, Mon. Hel. Viv., iii, 2G8 (excl. ft et y).—Deshayes, in Lain., viii, 112; 3d ed., iii, 308.—Id., Encycl. M6th., ii, 1830, 253.—Id., in Per., 1. c., i, 144.—Peeve, Con. Icon., 1852, GOG (excl. syn., no., 1854, 717). Ilclicodonta liirsuta, a, Feiiussac, Tab. Syst., 101 (no desc.). Stenotrema monodon, Morse, Jour. Port. Soc., i, 18G4, 10, f. 13; pi. ii, f. 2; pi. iv, f. 14.— Tryon, Am. Jour. Conch., iii, 18G7, 5G, pi. ix, figs. 18, 20. Helix monodon var. cincta, Lewis, Proc. Acad. Nat. 8ci. Phila., 1874. (This last var. is of unusually compressed form, with a very wide umbilicus, peritreme sub- carinate, and often exhibiting a peripheral brown band like the banded var. of 11. elevata. Found in North Carolina.) Throughout entire North America, as are also its varieties, viz, var. fraterna, Say, and var. Icaii, Ward. No. Locality. Date. Collector. Yi3 July, 1874 John Yarrow. Genus HELICODISCUS. I1ELICODISCUS LIN EAT US, Say. Helixlineata, Say, Jour. Acad. Nat. Sci. Phila., i, 1817,18; ii, 1824,273.—Nich., Encycl., 3d ed., iv, 1819.—Say, Conch., Binney’s cd., 7, 24.—Binney, Bost. Jour. Nat. Iliat., iii, 1840, 436, pi. xxii, f. 6.—Id., Terr. Moll., ii, 261, pi. xlviii, f. 1.—DeKay, N. Y. Moll., 1843, 44.—Could, Invert., 1841, 179, f. 103.—Adams, Ver., Moll., 1842, 161.—Fekussac, Tab. Syst., 44.—Id., Hist., pi. lxxix, f. 1.—Desha yes, in Fer., i, 80.—Chemnitz, 2d ed., ii, 203, tab. ci, tigs. 13-15.—Pfeiffer, Mon. Hel. Viv., i, 184.—Reeve, Con. Icon., 1852, 724.—W. G. Binney, Terr. Moll., iv, 123.—Morse, Ain. Nat., i, 1867, 546, f. 44. 930 ZOOLOGY—MOLLUSCA. Planorbis parallelus, Say(?), Proc. Acad. Nat. Sci. Pliila., ii, 1821, 1G4.—Say, Conch., Binney’s cd., C3. Eelicodiscus lineata, Morse, Jour. Port. Soc., i, 18G4, 25, figs. 61, G2, pl.ii, f. 3; pi. viii, f. G3.—Tyron, Am. Jour. Conch., ii, 18GG, 2G4, pi. iv, f. GO. Range—throughout Eastern North America. Found also on the Rio Chama, New Mexico, and in Arizona. No. Locality. Date. Collector. HL i Oct., 1873 Dr. 0. Loew. Genus PATULA, Hald. PATULA STEIGOSA, Gould. Helix strigosa, Gould, Proc. Post. Soc. Nat. Hist., ii, 1846, 1GG.—Id., U. S. Exp. Exped., Moll., 1852, 3G, f, 41.—Id., Terr. Moll., ii, 210, pi. xxvi, a.—Pfeiffer, Mon. Hel. Yiv., i, 121; iv, 91.—Id., Mai. Bl., 1857, 321.—W. G. Binney, Terr. Mol., iv, 23.—Binney & Bland, Land & Fresh Water Shells N. A., pt. i, 1869, 72.—Binney, Bui. Mus. Comp. Zobl., iii, No. 9, 192. Anguispira strigosa, Tryon, Am. Jour. Conch., ii, 18GG, 2G1, pi. iv, f. 40. (Helix cooperi should also probably be admitted as a synomyn.) Binney states the range of this species: “From Rio Piedra, of West- ern New Mexico, to Bighorn Mountains, Nebraska. It seems to inhabit the Central Basin.” And in his more recent paper he gives the following dis- tribution : “ This species is peculiar to the ‘ Central Province ’, which extends from Mexico to the British possessions, between the Rocky Mountains in the east and the Sierra Nevada and Cascade Mountains in the west, while the succeeding species, P. striatdla, Anth., is more widely distributed throughout the Pacific Province, which consists of a narrow strip between the Sierra Nevada and Cascade Mountains in the east and the Pacific Ocean in the west. Its southern limit is San Diego, from whence it extends north- erly to Alaska. This latter form is abundant in the Sierra Nevada.” Mr. Tryon informs me that, after a careful examination and comparison of many specimens of this shell, he believes it identical with Helix haydenii, Gabb, a variety with elevated lines, and with this experience II. idalioensis is probably another extreme variety of this protean form. Dead specimens only secured in elevated localities in Utah. PULMONATA—11 ELI( I DAE—PATULA PERSPECTIVA. 931 No. Locality. Date. Collector. C Wahsatch Mountains, Utah July, 1872 H. W. Henshaw. B Antelope Springs, Nev Aug., 1872 Dr. H. C. Yarrow. A Beaver, Utah Sept., 1872 Lieut. \V. Mott. D (var. minor). Fillmore Cafion, Utah Dr. H. C. Yarrow. 5 Blue River, Colo June, 1873 J. Wolf. *9 Saguache, Colo Sept., 1873 Do. PATULA STRIATELLA, Anthony. Helix striatella, Anthony, Boat. Jour. Nat. Hist., iii, 1840, 278, pi. iii, f. 2.—Binney, Boat. Jour. Nat. Hist., iii, 1840, 4.32, pi. xxi, f. 5.—Id., Terr. Moll., ii, 217, pi. xxx, f. 2,—Gould, Invert., 1 1841, 178, f. 112.—Adams, Verm. Moll., 1842, 102.—DeKay, N. Y. Moll., 1843, 43, pi. iii, f. 40.—Chemnitz, 2d ed., ii, 115, tab. Ixxxv, figs. 30-38.—Pfeiffer, Mon. Hel. Viv., i, 104.—Reeve, Con. Icon., 1853,. 727.—W. G. Binney, Terr. Moll., iv, 99.—Morse, Am. Nat., i, 1807, 545, f. 40. Helix ruderata, Adams, Sill. Jour. (1), 40-408 (nec Studer). t Helix croiikheitei, Newcomb, Proc. Cal. Acad. Nat. Sci., iii, 1805, 180. Pa tula striatella, Morse, Jour. Port. Soc"., i, 1804, 21, f. 48, pi. ii, f. 0; pi. viii, f. 49. Anguispira striatella, Tryon, Am. Jour. Conch., ii, 18GG, 202, pi. iv, f. 51. Patula cronkheitei, Tryon, Am. Jour. Conch., ii, 1800, 203. This species is found throughout Northern North America on both the Atlantic and Pacific coasts. Secured as follows:— No. Locality. Date. Collector. L 2 L Mountains near Fort Garland, Colo May, 1873 H. W. Henshaw. D i Twin Lakes, Colo July, 1873 J. Wolf. C3 182 do Do. Twin Lakes, Colo Aug., 1873 Dr. J. T. Rothrock. J2 South Park, Colo J. Wolf. PATULA PERSPECTIVE, Say. Helix perapcctira, Say, Jour. Acad. Nat. Sci. Pliila., i. 1817,18.—Nich., Encycl., iv, 3d ed., 1810; Say, Conch., Binney’s ed., 9.—Binney, Bost. Jour. Nat. Hist., iii, 1840, 430, pi. xxi, f. 4.—Id., Terr. Moll., ii, 250, pi. xxx, f. 1.—DeKay, N. Y. Moll., 1843,42, pi. iii, f. 38.—Ferussac, Tab. Syst., 44.—Id., Hist. Nat. des Moll., pi. lxxix, f. 7.—Desha YES, ill Lam., viii, 130; 3d ed., iii, 315.—Id., in Fer., i, 81.— Chemnitz, 2d ed., ii, 114, tab. 1 xxxv, figs. 30-32.—Pfeiffer, Mon. Del. Viv., i, 103; iii, 99 (excl. llclix filiola).—Reeve, Con. Icon., 095.—W. G. Bin- ney, Terr. Moll., iv, 122.— Leidy, T. M. U. S., i, 1851, 153, pi. vii, figs. 4-7 (anat.). 932 ZOOLOGY—MOLLUSC A. Helix patula, Deshayes, Encycl. Metli., ii, 1830, 217. Anguispira perspective Tryon, Am. Jour. Couch., ii, 1866, 262, pi. iv, f. 50. Distributed throughout the whole of Eastern North America. Taken in New Mexico by expedition. No. Locality. Date. Collector. 166 G San Ildefonso, N. Mex Aug., 1874 Dr. H. C. Yarrow. Genus VALLONIA, Risso. YALLONIA PULOHELLA, Mull. Helix pulchella, Mull, Verm., 30.—Pfeiffer, Mon. Hel. Viv., i, 365.—Binney, Bost. Jonr. Nat. Hist., iii, 1840, 375, pi. 9, f. 2.—Id., Terr. Moll., ii, 175, 17, f. 1.— Gould, Invert., 1841, 17C, f. 102.—Adams, Verm. Moll., 1842, 159.— Leidy, T. M. U. S., i, 1851, 26, pi. ix, figs. 7-9.—Binney & Bland, Land & Fresh Water Shells N. A., 1869, pi. 157.—Binney, Cat. Terr. Moll., Bull. Mus. Comp. Zool., iii, No. 9, 194. Helix minuta, Say, Jour. Acad. Nat. Sci. Phila., i, 1817, 123.—Nich., Eucycl., 3d ed., 1819; Biuney’s ed., 3.—DeKay, N. Y. Moll., 1843, 40, pi. 3, f. 33.—Morse, Am. Nat., i, 1867, 544, f. 39.—Roberts, U. S. Geol. Surv. Terr., 1870, 468. Helix costata, Muller, vide Pfeiffer, Mon. Hel. Viv., i, 366. Vallonia minuta, Morse, Port. Soc., 1864, 21, figs. 54-56, pi. 8, f. 57.—Tryon, Am. Jour. Conch., iii, 1867, 36, pi. 8, f. 20. A widely distributed form from Canada to Florida; also found through- out Europe, Siberia, Thibet, Madeira, Azores, &c. Belongs more particu- larly to the northern region of the Central Province. No. Locality. Date. Collector. C3 South Park, Colo July, 1873 J. Wolf. Eam. vitrinidae. Genus VITRINA, Drapr. VITKINA PFEIFFERI, Newcomb. Vitrina pfeifferi, Newcomb, Proc. Cal. Acad. Nat. Sci., ii, 1861, 92.—Tryon, Am. Jour. Conch., ii, 186C, 244, pi. iii, f. 3.—Binney, Bui. Mus. Comp. Zool., iii, No. 13, 192-198. An exclusively western form, found from 37° to 42° latitude, from PULMONATA—VITEINIDAE—VITRINA LIMPIDA. 933 Rocky Mountains to Pacific Ocean. Twin Lakes, Colorado, is the most easterly locality now known. No. Locality. Date. Collector. L i Fort Garland, Colo May, 1873 Aug. 5, 1873 H. W. Henshaw. E Twin Lakes, Colo J. Wolf. VITKINA LIMPIDA, Gould. Vitrina pellucida, DeKay, N. Y. Moll., 1843, 25, pi. iii, f. 42 (nee Muller).—Adams, Verm. Moll., 1842, 102.—Binney, Terr. Moll., ii, 58, pi. Ixvii, a, f. 1. Vitrina americana, Pfeiffer, 1852, Proe. Zool. Soc., Dec., 150.—Chemnitz, ed. 2, 1854, 9, i>1. i, figs, 22-25. Vitrina limpida, Gould, in Agassiz’s Lake Superior, 1850, 243; Terr. Moll., 1. c.— Pfeiffer, Malac. Blatt, 1850, ii, 10.—Id., Mon. Del. Viv., iv, 798.—W. G. Binney, Terr. Moll., 33.—Peeve, Con. Icon., 02.—Morse, Jour. Port. Soc., i, 1804, p. ii, pi. v, f. 17.—Id., in Am. Nat., i, 1807, 314, f. 20.—Tryon, Am. Jour. Concli., ii, 1800, 243, pi. iii, f. 1. Found in Northeastern States and northwest of Lake Superior, by the expedition in Colorado. No. Locality. Date. Collector. J 4 Aug., 1873 J. Wolf. Genus ZONITES, Montf. Subgenus Hyalina (F6r.) Gray. ZONITES ARBOREUS, Say. This and the succeeding species are widely distributed, being found throughout Eastern North America, and in fact all over the northern por- tion of the continent where the mountains have ceased to be barriers to distribution. No. Locality. Date. Collector. C 2 South Park, Colo J»iy. '873 J. Wolf. D Twin Lakes, Colo Aug., 1S73 Do. 934 ZOOLOGY—MOLL CSC A. ZONITES MmUSCULUS, Bimiey. No. Locality. Date. Collector. L i L Mountains near Fort Garland, Colo May, 1873 H. W. Henshaw. ZONITES VIRIDULUS, Menke. Collected by the expedition in Colorado. No. Locality. Date. Collector. J 7 South Park, Colo Aug., 1873 J. Wolf. Submenus Conulus, (Fitz.) Moq.-Tand. ZONITES FULVEJS, Drapr. Helix chersina, Say, Jour. Acad. Fat. Sci. Pliila., ii, 1821,156.—Say, Conch., Biuney’s ed. 18,81.—Binney, Bost. Jour. Fat. Hist., iii, 1840, 41G, pi. xxvi, f. 3.—Id., Terr., Moll., ii, 243, pi. xvii, f. 4.—Gould, Invert., 1841, 185, f. 105.—Adams, Ver., Moll., 1842, 162.—Id., Silliman’s Jour, (i), xl, 273.—DeKay, F. Y. Moll., 1843, 44, pi. xxxv, f. 338.—W. G. Binney, Terr. Moll., iv, 119.— Morse, Am. Fat., i, 1867, 544, f. 38. Helix cgena, Say, Jour. Acad. Fat. Sci. Pliila., v, 1825,120.—Say, Conch., Binney’s ed., 30.—DeKay, F. Y. Moll., 1843, 45.—Chemnitz, ed. 2, i, 1846, 237, pi. xxx, figs. 19-21 (?).—Reeye, Con. Icon., Fo. 1263, 1854.—Pfeiffer, Mon. Hel. Viv., i, 31 (not of Gould in Terr. Moll.). Helix fulva, Draparnaud, teste Mighels (Bost. Jour. Fat. Hist., iv, 333), Chemnitz, Pfeiffer (Mon. Hel., i, 30), Reeye, Forbes, & Hanley. Conulns chersinus, Morse, Jour. Port. Soc., i, 1864, 19, figs. 44, 46, pi. ii, f. 4; pi. vii, f. 45. Conulus eliersina, Tryon, Am. Jour. Conch., ii, 1866, 256, pi. iv, f. 37. Widely distributed throughout North America, and in the circumpolar regions of Asia and Europe. Found by the expedition in following locality: — No. Locality. Date. Collector. C i South Park, Colo 1 July, 1873 J. Wolf. G Twin Lakes, Colo Aug. 4, 1873 Do. 182, r do Aug., 1873 Do. Jl South Park, Colo Aug., 1873 Do. PULMONATA—SUCCINIDAE—SUCCINEA AVARA. 935 Fam. succinidae. Genus SUCCINEA. Subgenus Succinea, Drapr. SUCCINEA A VARA, Say. Succinea avara, Say, Long’s Exped. Rocky Mts., ii, 1S22, 2G0, pi. xv, f. 6.—Say, Couch., Binney’s ed., 32, pi. lxxiv, f. G.—Gould, Invert., 1841, 196, f. 127.—Adams, Verm. Moll., 1842, 156.—DeKay, N. Y. Moll., 1843, 54, pi. iv, f. 55.— Pfeiffer,- Symbol., ii, 56.—Id., Mon. Hel. Viv., ii, 525.—Id., Chemnitz, eo said, in regard to this species, that Mr. Lea upholds it tenaciously; and it is but fair to stato, if it is not distinct from Physa gyrina, it is a very strongly marked variety. 938 ZOOLOGY—MOLLUSC A. PHYSA HETEROSTROPHA, Say. Limncca heterostropha, Say., Am. ed. Nicli. Enoycl., 1817-19, pi. 1, f. 6.—Say, Conch., Binney’s ed., 46, pi. lxix, f. 6. Physa heterostropha, Say, Jour. Acad. Nat. Sci. Phila., ii, 1821, 172.—Say, Conch., Binney’s ed., 68.—Hald., Mon., 1843, 23, pi. ii, figs. 1-9.—Gould, Invert. Mass., 1841, 211, f. 141.—Adams, Verm. Moll., 1842, 154.—Deshayes, in Lamarck, An. sans Ver., viii, 402; ed. 2, iii, 412.—DeKay, N. Y. Moll., 1843, 76, pi. v, f. 82.—Chemnitz, ed. 2, 7, pi. 1, figs. 7, 8.—Mrs. Gray, Fig. Moll. An., pi. cccx, f. 9.—Potiez & Michaud, Gal. des Moll., i, 224, pi. xiii, figs. 15, 16.—Anon., Can. Nat., ii, 1857, 209, f. —.—Binney, Land & Fresh Water Shells N. A., pt. ii, 1865, 84.—Roberts, U. S. Geol. Surv. Terr., 1870, 468. Physa fontana, Hald., Mon., pt. ii, 1841, p. 3 of cover. Physa cylindrical Newcomb, in DeKay, N. Y. Moll., 1843, 77, pi. v, f. 82. Physa aurea, Lea, Trans. Am. Phil. Soc. Phila., vi, 1839, 18, pi. xxiii, f. 106.—Id., Obs., ii, 1839, 18.—DeKay, N. Y. Moll., 1843, 80, pi. v, f. 89. Physa plicata, DeKay, N. Y. Moll., 1813, 78, pi. v, f. 85. Physa osculans, Hald., Mon. Part., figs. 11,12. Physa striata, Menke, Syn. M6th., ed. 2, 1830, 132, teste Haldeman. Physa subarata, Menke, loc. cit., teste Haldeman. Physa cliarpcntieri, Kuster, in Chemnitz, ed. 2, 23, pi. 14, figs. 4-6. Physa philippi, Kuster, loc. cit., 19, pi. iii, figs. 3-6. Physa injlata, Lea, Proc. Am. Phil. Soc. Phila., ii, 32.—Id., Trans., ix, 7.—Id., Obs., iv, 7. Helix heterostrophus, Eaton, Zool. Text-Book, 1866, 195. Bulla crassula, Dillwyn, Conch., tab. 1, 487, No. 36 (=fontinalis).—Chemnitz, Conch., ix, 33, pi. ciii, figs. 879, 880, var. 3.—Gmel., Syst. Nat., 3407.—Schroter, Einl. I., 261, Helix, No. 84. Cochlea neritoides, Lister, Conch., pi. cxxxv, f. 34. This species is represented in the collection by a few individuals brought from the shores of Lake Sevier, forty miles from Fillmore, Utah, by Mr. G. K. Gilbert, geologist of the survey. No living shells were found, and the probabilities are that the shells collected were washed from the Sevier River, which is fresh water, into the briny waters of the lake, and there perished. It is rather curious that a shell so common, and with such a wide range of distribution, should have been met with in but one locality in Utah. No. Locality. Date. Collector. (?) 362 B Sevier Lake, Utah Aug., 1872 Oct., 1874 G. K. Gilbert. C. E. Aiken. Pueblo, Colo PULMONATA—PIIYSIDAE—PIIYSA LORDI. 939 PUYSA ALTONENSIS, Lea. Vhyxa altonenxix, Lea, Proc. Acad. Nat. Sci. Phila., 1804, 114. Type found at Alton, 111. Found by the collectors of the expedition as follows: — No. Locality. Date. Collector. 500 0 Pescao, N. Mex July, 1873 H. W. Henshaw. 500 B 575 B Do. White Mountains, Ariz Aug., 1873 Do. A 16 Near Camp Apache, Ariz G. M. Keasbey. 1176 4 July, 1874 Jas. M. Rutter. The two last numbers represent a variety differing in some essential points from the type. PIIYSA ANCILLARIA, Say. Physa ancillaria, Say, Jour. Acad. Nat. Sci. Phila., v, 1825,124.—Say, Conch., Binney’ ed., 114.—Binney & Bland, Land & Fresh Water Shells N. A., ii, 1869, 81, f. 189.—Hald., Moil, 1843, 27, pi, iii, figs. 1-10.—Gould, Invert., 1841, 213, f. 142.—Adams, Venn. Moll., 1842, 154.—I)eKay, N. Y. Moll., 1843, 78 pi. v, 90.—Chemnitz, 2d ed., 20, pi. xii, figs. 12, 13.—Chenu., Man. de Couch., ii, 480, f. 3550.—Anon., Can. Nat., ii, 1857, 211, fig. Physa ohesa, DeKay, N. Y. Moll., 1843, 78, pi. v, 1‘. 86. Is distributed from New England to Louisiana southward and to New Mexico westward. Taken as follows : — No. Locality. Date. Collector. *337 Y 18 166 G San Ildefonso, N. Mex Aug., 1874 Dr. H. C. Yarrow. Do. Do. do The last Enumerated is a variety. PIIYSA LORDI, Bd. Physa lordi, Bn., Proc. Zool. Soc. London, 1863, GS.—W. G. Binney, Land & Fresh Water Shells N. A., 1865, 76. Is a characteristic shell of the higher grounds of the Rocky Mountains, according to Baird. The specimen secured differs slightly from the type, and is considered a variety by Dr. Lewis. 940 ZOOLOGY—MOLLUSCA. It is thought by Mr. Wheatley that sayii, ampullacea, lordi, and parkerii are one species; if this be so, the synonymy will have to be headed by P. sayii, to which Dr. Lewis assents. Secured as follows: — No. Locality. Date. Collector. H L i Gila River, N. Mex , 1873 Dr. 0. Loew. PHYSA HAWNII, Lea. Physa Jiawnii, Lea, Proc. Acad. Nat. Sci. Phila., ii, 1864, 8, 115. Hab.—Verdigris River, Kansas (F. Hawn). Found at the following locality: — No. Locality. Date. Collector. 70 A White Mountains, Ariz. Aug., 1873 G. K. Gilbert. PHYSA TRASKII, Lea. Physa traskii, Lea, Proc. Acad. Nat. Sci. Phila., 18G4, ii, 8,115. Hab.—Rio Los Angeles, Cal. Taken at the following locality: — No. Locality. Date. Collector. r4 Santa F6, N. Mex July, 1873 Dr. 0. Loevv. ? PHYSA D’OKBIGNIANA, Lea. No. Locality. Date. Collector. 500 R L 44 A , I873 H. W. Henshaw. Abiquiu, N. Mex Sept., 1874 Dr. 0. Loew. The latter number represents a very small variety, which is placed pro- visionally under this head. Further investigations may prove it to bo a new species. PULMONATA—LIMNAEIDAE—LIMNAEA STAGNALIS. 941 riiy8a warreniana, Lea, Proc. Acad. Nat. Sci. Pliila., 1804, ii, 8, 115. IIah.—Loup Fork of the Platte River; Milwaukee, Wis.; Grand Rapids, Mich. Taken only at the following locality : — PHYSA WARRENIANA, Lea. No. Locality. Date. Collector. L 18 Abiquiu, N. Mex Sept., 1874 Dr. O. Loew. PIIYSA SMITHSONIAN A, Lea. Vhysa xmithsoniana, Lea, I’roc. Acad. Nat. Sci. Phila., 1864, ii, 8, 115. IIab.—Loup Fork of the Platte River. Secured by the expedition as follows:— No. Locality. Date. Collector. L 42 Southwestern New Mexico Sept., 1874 Dr. 0. Loew. Fam. limnaeidae. Genus LIMNAEA, Lam. LIMNAEA STAGNALIS, Linn. Limncca jugular is, Say, Mieb. Encycl., 1817-19.—Say, Conch., Binney’sed., 40.—IIald., Mon., 1841, 10, pi. iv.—DeKay, N. Y. Moll., 1843, 74, pi. v, f. 41.—Kuster, Chemnitz ed., 2, 3, pi. i. f. 7. Limncca apprexxa, Say, Jour. Acad. Nat. Sci. Phila., ii, 1818, 108; Binney’s ed., GO.— IIald., Mon., 1842, 18, pi. v.—Adams, Verm., Moll., 1842, 115, (Pamph. 3).—DeKay, N. Y. Moll., 1843, 74.—Kuster, Chemnitz ed. 2, 4, pi. i, tigs. 8, 9. Linmcea stagnalis, Linn., Syst. Nat., &c., Sheppard, 1829.—Id.} Tr. Lit. Hist. Soc. Quebec, i, 190.—Kirtland, Am. Jour. Sci. & Arts (1), xxxi, 35, f. 10.—7r/., Ohio Rep., 200.—Anon., Can. Nat., ii, 1857,19G, figs. 1, 2.—Binney, Land & Fresh Water Shells N. A., pt. ii, 1805, 25. Limnara speciosa, Ziegler of Rossmassler, Icon., pt. ii, 1835, 9G, f. 50. Widely distributed from Vermont to Northwestern States; to Pacific Ocean (Lea); Oregon; Southern Utah; numerous in British America, and probably in Alaska. 942 ZOOLOGY—MOLLUSC A. Taken by the expedition in the following localities:— No. Locality. Date. Collector. (?) Utah Lake, Utah July, 1872 H. W. Henshaw and Dr. H. C. (?) (?) Ditches near Salt Lake City, Utah Pan quitch Lake, Utah Oct., 1872 Yarrow. Dr. H. C. Yarrow. Do. 21 Loma, Colo Sept., 1873 J. Wolf. B Rio Grande, Colo Oct., 1873 Do. B i Del Norte, Colo Do. LIMNAEA REFLEXA, Say. Limneus reflexus, Say, Jour. Acad. Nat. Sci. Pliila., ii, 1821, 1G7.—Id., Am. Concli., iv, 1832, pi. xxi, f. 2.—Id., Binncy’s ed., 65, 188, pi. xxxi, f. 2.—Id., Chemnitz’s ed., 44, pi. vii, f. 4.—Kuster, in Chemnitz, ed. 2, 41, pi. vii, figs. 11, 12. Limncea reflexa, Hald., Mon., 1842, 26, pi. viii.—DeKay, N. Y. Moll., 1843, 71, pi. iv, figs. 65-72.—Binney, Land & Fresh Water Shells N. A., pt. ii, 1865, 39.—Roberts, U. S. Geol. Surv. Terr., 1870, 468. Limneus elongatus, Say, Jour. Acad. Nat. Sci. Phila., ii, 1821, 167.—Id., Long’s Exped. Rocky Mts., ii, 1823, 263.—Say, Conch., Binuey’s ed., 65,130; Chemnitz ed., 43, pi. vii, f. 5. Limneus umbrosus, Say, Am. Conch., iv, 1832, pi. xxxi, f. 2.—Id., Binuey’s ed., 187, pi. xxxi, f. 2.—Hald., Mon., 1842, 24, pi. vii.—DeKay, N. Y. Moll., 1843, 68, pi. iv, f. 76.—Kuster, in Chemnitz, ed. 2, 41, pi. vii, figs. 13-16. Limncea exilis, Lea, Trans. Am. Phil. Soc. Phila., v, 1837, 114, pi. xix, f. 82.—Id., Obs.j i, 226.—Kuster (Limnceus), in Chemnitz, ed. 2, 40, pi. vii, f. 9. Limnceuspalustris var. distortus, Rossmassler, Icon., i, 1835, 97, pi. ii, f. 52. Limnophysa reflexa, Chemnitz, Man. de Conch., ii, 480, f. 3544. Observed from northern tier of States, from New York to the Pacific, and in Canada. It extends more to the southward in the western portions of its area, having been found in Kansas, Utah, and Colorado, and in the Columbia and Sacramento Rivers (Binney). Secured by the expedition at the following locality: — No. Locality. Date. Collector. 0 Loma, Colo Oct., 1873 Dr. J. T. Rothrock. LIMNAEA PALUSTRIS, Muller. Helix palustris, Muller, Syn. Nov. Gen., 1834, p. —.—Rackett, Trans. Linn. Soc., xiii, 1822, 42. PULMONATA—LIMNAE1DAE—L1MNAEA PALUSTRIS. 943 * Limn ecus eloden, Say, Jour. Acad. Nat. Sci. Pliila., ii, 1821, 109.—Id., Am. Couch., iv, 1832, pi. xxxi, f. 3.—Id., Binney’s ed., 66,188, pi. xxxi, f. 3.—Id., Chemnitz’s ed., 44, pi. viii, f. 3.—Kustek, in Chemnitz, ed. 2, 42, pi. vii, figs. 17-21. Limncca elodex, Gould, Invert. Muss., 1841, 221, figs. 146, 147.—Adams, Verm. Moll., in Thom’s Hist., 1842, 153.—Anon., Can. Nat., ii, 1857, 199. Limncca frayilix (not of Linnaeus), IIald., Mon., 1842, 20, pis. vi-xv, f. 1; 53, pi. xiv, f. 1.—DeKay, N. Y. Moll., 1843, 68, pi. iv, f. 08. Limncca paluxtris, Muller (Buccinum), &c.—Sheppard, Trans. Lit. Llist. Soe. Quebec, i, 1829, 196.—Binney, Land & Fresh Water Shells N. A., pt. ii, 1865, 45.— Roberts, U. S. Geol. Surv. Terr.*, 1870, 468. Limncca nuttaliana, Lea, Proc. Acad. Nat. Sci. Pliila., ii, 1841, 33.—Id., Trans. Am. Phil. Soc. Pliila., ix, 1844, 9.—Id., Obs., ii, 9.—Kustek (Limnccux), in Chem- nitz, ed. 2, 38, pi. vii, f. 5. Limncca plebcia, Gould (I). Limncca expanxa, IIald., Moil, 1842, 29, pi. ix, figs. 6-8.—Id., Suppl. to pt. i, 1840, 3.—DeKay, N. Y. Moll., 1843, 75, pi. xxxvi, f. 348.—Kustek (Limnccm), in Chemnitz, ed. 2, 39, pi. vii, figs. 6, 7. Hanging from New England through Pennsylvania and Kansas to Cali- fornia and Oregon. Very numerous in British America (Binney). No living specimens found in Utah; very abundant on the mud flats of the Sevier, and at Panquitch Lake, with Planorbis trivolvis. Found in following localities : — No. Locality. Date. Collector. (?) Mud flats, near Sink of Sevier River, Utah... Sept., 1872 Dr. H. C. Yarrow. (?) Shores of Sevier Lake, Utah do G. K. Gilbert. (?) Panquitch Lake, Utah Oct., 1872 Dr. H. C. Yarrow. (?) Southern Utah do Henshaw. 2 Georgetown, Colo June, 1873 Dr. J. T. Rothrock. 2 A do do Do. 4 South Park, Colo July 1873 J. Wolf. A Twin Lakes, Colo Aug., 1873 Do. 17 A Do. N 1 Saguache, Colo Sept., 1873 Do. 22 Loma, Colo Do. * Probably future researches will replace elodes. tDr. Lewis states that “excellent reasons exist why Limnccus elodes should be retained. In all probability, our shell is distinct. I am sure that catascopium gives birth to elodes by proper chauge of station. The European pereger is by no means identical with catascopium, though it may be presumed to stand in the same relation to the European palustris that catascopium does to the American elodes.” 944 ZOOLOGY—MOLLUSCA. LIMNAEA DESIDIOSA, Say. Limncea desidiosa, Say, Jour. Acad. Nat. Sci. Pliila., ii, 1821, 169.—Id., Long’s Exped. Rocky Mts., ii, 1823,263.—Id., Am. Conch., vi, pi. i, f. 5.—Id., Binney’s ed., 66, pi. lv, f. 3.—Adams, Verm. Moll., 1842, 154.—DeKay, N. Y. Moll., 1843, 73, pi. y, f. 78.—KtisTER, Chemnitz, ed. 2, 47, pi. viii, figs. 22-26 (Limnceus).— Gould, Iuvert. Mass., 1841, 219, f. 150.—Hald., Mon., 1842, 31, pi. x ; 48, pi. xiii, figs. 16-18.—Anon., Can. Nat., ii, 1857,198, f. —.—Binney, Land & Fresh Water Shells N. A., pt. ii, 1865, 48.—Roberts, U. S. Geol. Surv. Terr., 1870, 468. Limncea acuta, Lea, Trans. Am. Phil. Soc. Phila., v, 1837, 114, pi. xix, f. 81.—Id., Obs., i, 226. Limncea obrussa, Say, Jour. Acad. Nat. Sci. Phila., sec. v, 1825, 123.—Say, Couch., Binney’s ed., 113.—DeKay, N. Y. Moll., 1843, 75. Limncea philadelphica, Lea, Proc. Am. Phil. Soc. Phila., ii, 1841, 32.—Id., Trans., ix, 1844, 8.—Id., Obs., iv, 8. Limncea fusiformis, Lea, Proc. Am. Phil. Soc. Phila., ii, 1841, 33.—Id., Trans., ix, 1844, 10.—Id., Obs., iv, 10. According to Mr. Binney, the western range of this species is Kansas, extending from New England; but Professor Hayden found it during his Yellowstone expedition. It was found, also, to be very abundant in the locality below indicated, and was not seen elsewhere. Occurs in some of the mountain passes westward. No. Locality. Date. Collector. (?) Sept., 1872 G. K. Gilbert. L1MNAEA CAPERATA, Say. Limnceus caperatus, Say, New Harm. Diss., ii, 1829, 230; descr., 23.—Say, Conch., Binney’s ed., 148.—Kuster, in Chemnitz, ed. 2, 47, pi. viii, figs. 27-30. Limncea caperata, Hald., Mon., 1842, pi. xi, figs. 1-9.—Adams, Yer. Moll., 1842, 154.—DeKay, N. Y. Moll., 1843, G9, pi. iv, figs. 06-69; pi. v, f. 79.—Mrs. Gray, Fig. Moll. An., pi. cccx, f. 8.—Binney, Land & Fresh Water Shells N. A., pt. ii, 1865, 56. Limncea umbilicata, Adams, Am. Jour. Sci. & Arts [1], xxxix, 1840, 374.—Id., Bost, Jour. Nat. Hist., iii, 1840, 325, pi. iii, f. 14.—Gould, Invert. Mass., 1841. 218, f. 149. This species is found in the British possessions as far north as Hud- son’s Bay, and through the northern tier of States from New England to Lake Superior (Binney) and westward. PIJLMONATA—LIMNAEIDAF—CARINIFEX NFWBERRYI. 945 Secured as follows : — No. Locality. Date. Collector. 7 July, 1873 J. Wolf. / LIMNAEA HUM I LIS, Say. Limncca humilis, Say, Jour. Acad. Nat. Sci. Pliila., ii, 1822,378.—Say, Couch., Binney’s ed., 110.—IIald., Mon., 1842,41, pi. xiii, figs. 1-8.—DeKay, N. Y. Moll., 1843, 71, pi. iv, f. 71.—Binney, Land & Fresh Water Shells N. A., pt. ii, 1805,03.— Roberts, U. S. Geol. Surv. Terr., 1870, 408. Limnccvx modicellux, Say, Jour. Acad. Nat. Sci. Pliila., v, 1825, 122.—Say, Couch., Binney’s ed., 113.—Gould, Invert. Mass., 1841, 218, f. 151. Limn(ZO, linuleyi, DeKay, N. Y. Moll., 1843, 72, pi. iv, f. 74.—Linsley, Shells Conn., Am. Jour. Sci. & Arts (1), xlviii, 1845, 282. Limncca parva, Lea, Proc. Am. Phil. Soc. Pliila., ii, 1841, 33.—Id., Trans., ix, 1844, 11.—Id., Obs., iv, p. ii. Limnnaplica, Lea, Proc. Am. Phil. Soc. Pliila., ii, 1841, 33.—Id., Trans., ix, 10.—Id., Obs., ix, 1844, 10. Limncca griffithiana, Lea, Proc. Am. Phil. Soc. Pliila., ii, 1841,33; ix, 1844,8.—Id., Obs., iv, 8. Limnwa planulata, Lea, Proc. Am. Phil. Soc. Pliila., ii, 1841,33; ix, 1844,9.—Id,, Obs., iv, 9. Limnva rustica, Lea, Proc..Am. Phil. Soc. Pliila., ii, 1841, 33; ix, 1844, 10.—Id., Obs., iv, 10. Limncca exigna, Lea, Proc. Am. Phil. Soc. Phila., ii, 1841, 33 ; ix, 1844, 9.—Id., Obs., ix, 10. Limncca curia, Lea, Proc. Am. Phil. Soc. Phila., ii, 1841, 33; ix, 1844, 11.—Id., Obs., iv, 2. Kanges from Maine to Georgia and from Kansas and Colorado to Lake Superior. Specimens collected as follows: — No. Locality. Date. Collector. I Denver, Colo , 1871 J. Wolf. Do. 8 South Park, Colo July 15, 1873 Genus CARINIFEX, W. G. Binney. CARINIFEX NEWBERRY1\ Lea. Planorbis netcberryi, Lea, L'roc. Acad. Nat. Sci. Phila., 1858, 41. Carinifex neicberryi, Binnky, Land & Fresh Water Shells N. A., pt. ii, 18G5, 74. Heretofore this species, according to Binney, has been discovered in 946 ZOOLOGY—MOLLUSC A. Oregon and California only. My friend Mr. G. W. Try on considers the presence of it in Utah as a valuable fact—indicating a much greater dis- tribution than was formerly known. No. Locality. Date. Collector. (?) Sept., 1872 G. K. Gilbert. Fam. planokbidae. Genus PLANORBIS, Guettard. Subgenus Helisoma, Swaiuson. PLANORBIS TRIVOLVIS, Say. Planorbis trivolvis, Say, Nich. Encycl., 1817-19, pi. ii, f. 2.—Id., Am. Conch., pt. vi, 1834, pi. liv, f. 2.—Id., Binncy’s ed., 44, pi. Ixx, f. 2; pi. liv, f. 2.—DeKay, N. Y. Moll., 1843, pi. iv, f. 59 a, b.—Gould, Invert. Mass., 1841, 201, f. 131.— Hald., Moil, 1844,13, pi. ii, tigs. 4-7.—Adams, Verm. Moll., 1842, 154.— Kuster, Chemnitz, ed. 2, 53, pi. v, tigs. 4-G; pi. vi, figs. 1-0, 20-25.— Potiez & Michaud, Gal. des Moll., i, 214, pi. xxi, figs. 19-21.—Anon., Can. Nat., ii, 1857, 202, f. —.—Binney, Land & Fresh Water Shells N. A., pt. ii, 1865, 11G.—Roberts, U. S. Geol. Surv. Terr., 1870, 4G8. Bulla Jluviatilis, Say, Jour. Acad. Nat. Sci. Phila., ii, 178.—Say, Conch., Binuey’s ed., 71. Planorbis regular is, Lea, Trans. Am. Phil. Soc. Phila., ix, G.—Id., ib., Proc., ii, 1841, 32.—Id., ib., Obs., iv, G. Planorbis megastoma, DeKay, N. Y. Moll., 1843, Gl, pi. iv, figs. GO, Gl. Physaplanorbula, DeKay, N. Y. Moll., 1843, 7G, pi. v, f. 83. Planorbis corpulentus, DeKay, N. Y. Moll., 1843, G4, pi. xiii, f. 185.—Whittemore, Am. Jour. Sci. & Arts [1], xxxviii, 193. ? Planorbis proboscideus, Potiez & Miciiaud, Gal. des Moll., i, 1838, 213, pi. xxv, figs. 13-15. Planorbis macrostomus, Wiiiteayes, Can. Nat., xiii, 18G3, 113, f. —. Planorbis trivolvis var.fallax, Hald., Moil, 1844, pi. iii, figs. 1-3. Planorbis lentus, Gould, Invert., 1841, 202, f. 132. llelix trivolvis, Eaton, Zool. Text Book, 182G, 194. Cochlea trium-orbum, Lister, Conch., pi. cxl, f. 4G.—Petiver, Gazophyl., pi. evi, f. 1G. A very common species, being found everywhere throughout the United States and Canada. In but one locality in Utah was it found liv- ing, viz, the ditches near Salt Lake City. At Panquitch Lake, Southern Utah, immense numbers of these shells PULMONATA—PLANORB1DAE—PLANORBIS PARVUS. 947 were found in the washed up grass from the bottom; but, although carefully searched for, no living individuals were secured. Mr. Tryon informs me our specimens are unusually large, with the margin of the aperture expanded like those from the Saint Lawrence River, described by Mr. Whiteaves as Planorbis macrostomus. Collected by expedition as follows: — No. Locality. Date. Collector. (?) Ditches near Salt Lake City, Utah July, 1872 Dr. H. C. Yarrow. (?) Utah Utah . Henshaw. (?) Mud flats near Sink of Sevier River, Utah... Sept., 1872 Dr. H. C. Yarrow. (?) Fillmore Lake, Utah Oct., 1872 Dr. II. C. Yarrow and II. W. Henshaw. (?) Panquitch Lake, Utah K Saguache, Colo Sept., 1873 J. Wolf. Subgenus Gyraulus, Agass. PLANORBIS PARVUS, Say. Planorbis parvus, Say, Nicli. Encycl. 1817—’10, pi. i, f. 6.—Say, Conch., Binney’s ed., 45, pi. lxix, f. 6.—Hald., Mon., 1844, 27, pi. iv, figs. 19-23.—Gould, Invert., 1841,209, f. 139.—Adams, Verm. Moll., 1842,156.—DeKay, N. Y. Moll., 1843, 63, pi. iv, f. 58.—Anon., Can. Nat., ii, 1857, 208, f. —.—Binney, Land & Fresh Water Shells N. A., pt. ii, 1865, 133, tigs. 222-224.—Roberts, U. S. Geol. Surv. Terr., 1870, 468. Planorbis coneavus, Anthony, Shells of Cincinnati (no dese.). Planorbis clem tug, Anthony, Bost. Jour. Nat. Hist., iii, 1840, 327, pi. iii, f. 16.— Gould, Invert. Mass., 1841,207.—DeKay, N. Y. Moll., 1843, 65. Helix parvus, Baton, Zool. Text-Book, 1826, 115. Abundant throughout the United States. Collected as follows: — No. Locality. Date. Collector. i South Park, Colo July, 1873 J. Wolf. Do. I do 948 ZOOLOGY—MOLLUSC A. Fam. valvatidae. Genus VALVATA, O. F. Muller. / VALVATA SINCERA, Say. Valvata sincera, Say, Long’s Exped. Rocky Mts., 1823,204, pi. xv, f. 11.—Say, Concb., Binney’s ed., 130, pi. lxxiv, f. 11.—Hald., Mon., 6, pi. i, figs. 5-10.—Adams, Verm. Moll., 152.—Id., Ain. Jonr. Sci. & Arts (1), xl, 2G7.—DeKay, N. Y. Moll., 119, pi. vi, figs. 127, 128.—Binney, Land & Fresh Water Shells N. Y., pt. iii, 18G5, 12. Valvata deprcssa, pars Kuster, in Chemnitz, ed. 2, 1852, 88.—Menke, Zeit. fUr Mai., ii, 1845, 122 (including tricarinata and simplex). Valvata striata, Lewis, Proc. Acad. Nat. Sci. Phila., 185G, 260. Found in same locality as some individuals of the genus Tryonia, and is apparently rare in Utah, although found in the northwest rather abund- antly. No. Locality. Date. Collector. (?) Near Salt Lake City, Utah July, 1872 Dr. H. C. Yarrow. Mr. Tryon has furnished the following three names of species occur- ring in our collections; but, as there is some doubt on this point, we have preferred to mark them doubtful: — Fam. VIVIPARIDAE. Genus CAMPELOMA, Raf, ? CAMPELOMA INTEGRA, Say. Detroit River; Madeline Island; Lake Superior. Fam. RISSOIDA Genus TRYONIA, Stimpson. ?TRYONIA EXIGUA, Conrad. With regard to this species, Mr. Try on writes me that a representative of the genus Tryonia was found in the same locality as Carinifex newberryi, viz, shores of Sevier Lake, Middle Utah. Mr. Try on informs me this is probably T. exigua, Stimp., or else a new species. Unfortunately, not enough specimens were secured to establish the latter. He considers this discovery a valuable one. DIMYARIA—CYRENIDAE—SPIIAERIUM PARTUMEIUM. 949 Fam. ceriphasiidjs. Genus CERIPHASIA, Swains. TCERIPHASIA LIVESCENS, Menke. A numerous species in the Northwestern States, originally described from Lake Erie, New York, by Menke. ? CERIPHASIA SURULARE, Lea, From rivers and creeks of Northwestern States ; Detroit River. Class CONCHIFERA. Order DIMYA.R1A. Superfamily CORBICULACEA. Family CYRENIDJ5. Genus SPHAERIUM, Scopoli. SPEL33RIUM PARTCJMEIUM varietas, Say. Cyclax partumeia, Say, Jour. Acad. Nat. Sci. Phila., ii, 1822, 380. Cyclax cornea, var. 2, Lamarck, Au. sans Vert., v, 1818, 558. Cyclas orbicularia, BARRATT, Am. Jour., xlviii, 1845, 270. Cyclax mirabilix, Prime, Proc. Bost. Soc. Nat. Hist., iv, 1851, 157. Cyclax ccerulea, Prime, loc. xnb cit., iv, 1851, 101. Cyclax ebumca, Anthony, loc. xub cit., iv, 1852, 279. Sphccrium partumeium, Prime, Mon. Am. Corbiculadm, Smithson, Miscel. Pub., No. 145, 1805, 45. The specimens collected by the expedition were submitted to Mr. Tem- ple Prime, of New York, who has kindly furnished the following notes:— “ This is a very interesting variety, forming, as it were, the connecting link between S. partumeium, of the east, and S. lenticula, Gould, of the west coast. It offers many points of resemblance with partumeium var. jayanum, from the East; it is, however, more transverse than this variety. “ Temple Prime. “ May, 1875.” Note.—Since the above was written, the specimens have been re-ex- amined by Dr. Lewis, who states his belief that the species above indicated is S. truncation Linsby. 950 ZOOLOGY—MOLLUSOA. Collected as follows:— No. Locality. Date. Collector. 19 Saguache, Colo Sept., 1873 J. Wolf. 23 Rio Grande, Colo Do. Fam. pisidiidae. Genus PISIDIUM, Pfeiffer. PISIDIUM ABDITUM, Halil. Pisidium abditum, Hald., Proc. Acad. Nat. Sci. Pliila., i, 1841, 53.—Prime, Mon. Am, Corb., 1865, 68.—Roberts, U. S. Geol. Surv. Terr., 1870, 469. Cyclas minor, C. B. Adams, Proc. Bost. Soc. Nat. Hist, i, 1841, 48. Pisidium tenellum, Gould, Agassiz’s Lake Sup., 1848, 245. Pisidium obscurum, Prime, Proc. Bost. Soc. Nat. Hist., iv, 1851, 161. Pisidium rubellum, Prime, loc. sub cii., iv, 185-1, 163. Pisidium minus, Stimpson, Moll. New England, 1851, 16. Pisidium kurtzi, Prime, Proc. Bost. Soc. Nat. Hist., iv, 1851, 162. Pisidium zonatum, Prime, loc. sub cit., iv, 1851, 162. Pisidium regulare, Prime, Bost. Jour, vi, 1852, 363, pi. xii, figs. 11, 12. Pisidium notatum, Prime, loc. sub cit., vi, 1852, 365, pi. xii, figs. 20-22. Pisidium arcuatum, Prime, loc. sub cit., vi, 1852, 364, pi. xii, tigs. 14-16. Pisum abditum, Desiiayes, Brit. Mus. Cat., 1854, 282. Pisum minus, Deshayes, loc. sub cit., 1854, 281. Pisidium resartum, Ingalls, in litt., 1855. Pisidium rubrurn, Lewis, in litt., 1855. Pisidium plenum, Lewis, in litt., 1855. Musculium abditum, Adams, Rec. Gen., ii, 1858, 451. Musculium minus, Adams, loc. sub cit., ii, 1858, 451. Musculium rubellum, Adams, loc. sub cit., ii, 1858, 452. Musculium obscurum, Adams, loc. sub cit., ii, 1858, 452. Musculium kurtzi, Adams, loc. sub cit., ii, 1858, 451. Musculium zonatum, Adams, locy. sub cit., ii, 1858, 452. Pisum obscurum, Adams, loc. sub cit., ii, 1858, 660. Pisum kurtzi, Adams, loc. sub cit., ii, 1858, 660. Pisum rubellum, Adams, loc. sub cit., ii, 1858, 660. Pisum zonatum, Adams, loc. sub cit., ii, 1858, 660. Pisidium retusum, Prime, Proc. Zool., xxviii, 1860, 322. Hab.—North America: in New England; in the States of New York, New Jersey, Pennsylvania, Ohio, Michigan, South Carolina, and California; Wyoming Territory, Utah Territory; in the Lake Superior region ; at Mon- treal in Canada; and iii Honduras. I) IM Y A R1A - IJ NIO N11J A E—A NO HUNT A OREGONENSIS. 951 Dr. 1 ’rime states, in his “ Monograph” loc. cit., that this species is dis- tributed over such a vast area of country, and varies so much according to the different localities in which it is found, that it is hardly surprising that its numerous varieties should have been mistaken for so many species. It was secured in but one locality inMiddle Utah, viz, on mountain sides near the Beaver River. No. Locality. Date. . Collector. M i Beaver, Utah Sept., 1872 Dr. H. C. Yarrow. PISIDIUM VARIABILE, Prime. Cyclas nitida, Miguels, Linsley, Am. Jour., xlviii, 1845, 27G. Pisidium variabile, Prime, Proc. Post. Soc. Nat. Hist., iv, 1851, 168. Pisidium grande, WHITTEMORE, in lift., 1855. Museulium variabile, Adams, liec. Gen., ii, 1858, 452. Pimm variabile, Adams, loc. sub cit., ii, 1858, 660. Pisidium variabile, Prime, Mon. Ain. CorbiculadflB, Smithson, Miscel. Pub., No. 145, 1865, 66. According to Prime, this species is distributed throughout North America, in New England, the States of New York, Pennsylvania, and Virginia. Specimens were found to be abundant in Colorado, near the Rio Grande River. No. Locality. Date. Collector. 2 3 A Rio Grande of Colorado Sept., 1873 J. Wolf. Fam. UNIONIDAE A number of Anodonta were collected during the field season of 1872, but, unfortunately, were destroyed or lost in transit to Washington, with the exception of the following species : — ANODONTA OREGONENSIS, Lea. Collected from the Sevier River, Utah, by Lieut. Wallace Mott, U. S. A., and Dr. II. C. Yarrow. 952 ZO0LOG Y—MOLLUSC A. ADDENDA. ANODONTA DEJECTA, Lewis. In 1874, a new and interesting species was discovered and submitted to Dr. James Lewis, of Mohawk, N. Y., who has kindly furnished the description given in the following addenda:— “Description of a new species of Anodonta, by James Lewis, Moliawh, N. Y., May 27, 1875. “ANODONTA DEJECTA, sp. nov. “Shell obovate, subcylindrical, inequilateral, slightly disposed to be alate posteriorly, emarginate on the base, posteriorly dilated and somewhat broadly triangular; substance of the shell of moderate thickness, and dis- posed to be opaque; beaks scarcely elevated above the dorsal margin, hav- ing a few minute, irregular undulations at their tips ; ligament somewhat long ; epidermis yellowisli-brown or olivaceous, polished, and without rays; lines of growth coarse and somewhat distant; anterior cicatrices distinct; posterior cicatrices confluent; dorsal cicatrices in the cavity of the beak a little removed from the dorsal margin, which is slightly arcuate; nacre white or faintly tinted salmon-color and iridescent. “Transverse diameter, 2.90 inches; altitude, 1.35 inches; lateral diameter, 1 inch. “ Found in Arkansas River or its tributaries west of the one hundredth meridian, by Dr. H. C. Yarrow, surgeon and zoologist to expedition for exploration west of the one-liundredth meridan. “ National Museum, Smithsonian Institution. “ A number of shells taken west of the one hundredth meridian were sent to me for identification a short time ago, and among them were speci- mens of the above described Anodonta, which appeared to me to be new, and I referred Dr. Yarrow to Mr. Lea, who requested that the shells be sent back to me for description. The specimens consist of one imperfect shell and fragments of others. “The most perfect specimen is slightly abnormal, but presents features which are unquestionably characteristic, as they are also indicated in the other (fragmentary) specimens. The form of the shell is somewhat like DIMYARIA—UNIONIDAE—ANODONTA DEJECTA. 953 that of an arcuate Margaritana marginata. The lines of growth indicating the form of the half-grown shell betray its resemblance to a very transverse inflated Unio tappanianus. There is no familiar species of Anodonta with which this species is comparable.” The following has been furnished me by Mr. Tryon for incorporation in this report: “ Extract from a verbal communication made by Mr. G. W. Tryon, jr., of the Academy of Natural Sciences of Vhiladelphia, to the Concliological Section of the Academy, May, 1873. “ Mr. Tryon called attention to an interesting seriesof land and fluviatile Mollusca from Utah, presented this evening. These shells were collected by the Expedition for explorations w'est of the one-lmndredth meridian, acting under the authority of the United States Engineer Office at Wash- ington. u The specimens of Helix strigosa, Gould, exhibited every variation of form, from the typical shells with depressed rounded whorls and smooth surface, to those with several revolving raised lines and a carinated peri- phery; in the latter condition, they are identical with II. hemphiUH, New- comb (Am. Jour, of Conch., v, 1869, 165, ‘White Pine Mining District’). In others, again, the raised lines are more numerous, and sufficiently promi- nent to be called ribs, and the periphery is not carinated; in this state, they are II. liaydeni, Gabb (Am. Jour. Conch., v, 1869, 24). This little species has been heretofore considered to belong to anew generic type for America, being the only species having revolving ribs; its nearest relationship was apparently with a small group of Madeira Helices. The form of the shell, its external appearance, and the closely approaching extremities of the lab- rum, connected by a callus upon the parietal wall, reminds one of Cyclo- stoma ; but no opercula were obtained with the fifty odd specimens in semi- fossilized condition collected by Prof. F. V. Hayden, in Weber Canon, Utah. It is extraordinary that any species should be found to vary so much as does II. strigosa in those characters which have heretofore been regarded as most persistent and distinctive. It is much easier to imagine the growth lines developed into ribs than a form in which the growth lines 954 ZOOLOGY—MOLLUSCA. are crossed by revolving ribs. In H. idahoensis, Newcomb (ibid., ii, 1866, 1), we find the surface raised into sharp ribs, parallel with the lines of accretion; and as in all other respects this species does not appear to differ from Strigosa, it is very probable that idahoensis will also prove to be a variety of this protean species. “Included in the collection are two specimens of the genus Tryonia, Stimpson. This curious little genus was heretofore considered restricted to the Colorado desert of Southern California, where, in a fossilized condition, it exists in such numbers as frequently to cover the surface of the ground. Two species have been described, viz: the type T. (Melania) exigua, Conrad (of which Melania protea, Gould, is a synonym), and Tryonia clathrata, Stimpson. The two Utah specimens are probably T. exigua. The genus Tryonia is included in a group of very small species of Amnicolidce, having the whorls ornamented by ribs, nodules, or spines ; it includes the genera— “ Paludestrina, Orb., 1841, West India and South America. “ Pyrgula, Crist, and Jan., 1832, Europe.* “ Potamopyrgus, Stimp., 1865, New Zealand. “ In addition to the above, the collection includes Succinea lineata, W. G. Binney ; Limncea palustris, Mull.; L. stagnalis, Linn., and L. desidiosa, Say; Pliysa elliptica, Lea; and Planorbis trivolvis, Say; the latter very large specimen, with the margin of the aperture expanded, like those from the Saint Lawrence River described by Mr. Wliiteaves as P. macrostomus *Mr. John Wolf has described Pyrgula scalariformis from the Post Pliocene near Tazwell, Illinois River. Other minute species may be detected hereafter, when our rivers are more carefully explored, as in France a number of new species have rewarded the minute search of recent collectors.