LYMNA:IDA OF NORTH AMERICA. aie 
Limnea obrussa HAtp., Mon. Limn., p. 48, pl. 13, figs. 16-18, 1842 —DekKay, 
Zool. N. Y., p. 75, 1843.—INGERSOLL, Rep. U. S. Geol. & Geog. Surv. Terr., 1874, 
p. 406—Hanna, Nautilus, XXIII, p. 96, 1909. 
Limnophysa obrussa Tryon, Amer. Journ. Conch., I, p. 252, 1865.—Cooperr, 
Proc. Cal. Acad. Sci., IV, pp. 90, 154, 1870; p. 173, 1872; Zoe, I, p. 196, 1890. 
Lymnea desidiosa (Authors, non Say). 
Lymneus desidiosus SAGER, Geol. Surv. Mich., p. 15, 1839. 
Limneus desidiosus KUstErR, Conch. Cab., p. 47, taf. 8, figs. 22-26, 1862. 
Limnea desidiosa HALDEMAN, Mon. Limn., p. 31, pl. X, 1842.—DeKay, 
Zool. N. Y., p. 73, pl. 5, fig. 78, 1843.—MicHets, Bost. Journ. N. H., IV, p. 
337, 1843—HaLpEMAN, Rupp’s Hist. Lanc. Co., p. 480, 1844—AnTHony, L. & 
F. W. Sh. Cin., 1848—Goutp, Agassiz’s Lake Sup., p. 244, 1850—Turts, Cat. 
Sh. Mass., p. 87, 1859—Mutes, Geol. Surv. Mich., 1860, p. 237—Cartton, Proc. 
Cal. Acad., Sci., IV, p. 51, 1869—SmitH & Prime, Ann. Lyc. N. H., IX, p. 402, 
1870.—Rep. N. Y. State Mus., XXV, p. 37, 1871—INGcERSoLL, Rep. U. S. Geol. 
& Geog. Surv. Terr., 1874, p. 406; Bull. U. S. Geog. Surv., I, p. 138, 1875.— 
Huett, Nat. Hist. La Salle Co., p. 104, 1898--HENpErRsoN, Nautilus, XX, p. 98, 
1907—HartmMAn, Cat. Mol. Chester Co.Hupparp, Cat. 
Lymnea desidiosa DEKay, An. N. Y., p. 32, 1839—CurrieR, Sh. Grand 
River, Mich., 1859—Grrarp, Proc. Nat. Inst., I, No. 2, p. 81, 1856—LEwis, 
Proc. Phil. Acad., p. 18, 1860.—Roperts, Rep. U. S. Geol. Surv. Wyoming, p. 
468, 1870—SuHarrer, List Sh. Cin. (no date). 
Lymnea desidiosa GouLp, Lamarck’s Genera, p. 69, 1833—Amer. Journ. 
Sci., XXXI, p. 36, 1837.—Linstry, Amer. Journ Sci., XLVIII, p. 282, 1845.— 
Jay, Cat., p. 269, 1852.—Lrwis, Proc. Phil. Acad., p. 260, 1856——REEvE, Elements 
of Conch, p. 178, 1860.—CoopEr, Amer. Nat., II, p. 486, 1868—Morse, Amer. 
Nat., III, p. 651, 1870 (nec. fig.)—Wotr, Amer. J. Conch., VI, p. 28, 1870.— 
Lewis, Proc. Phil. Acad., 1872, p. 109; Proc. Phil. Acad., 1872, p. 101—Ruoaps, 
Nautilus, XVIII, p. 66, 1904.—Baxer, Nautilus, XIX, p. 28, 1905; Amer. Nat. 
XX XIX, p. 672, fig. 8, 1905 —Datt, Land & F. W. Moll., p. 73, 1905.—PitsBry 
& Ferriss, Proc. Phil. Acad., 1906, p. 161—H1nktey, Nautilus, XX, p. 40, 1906.— 
Wa tker, Nautilus, XX, p. 82, 1906—Pitspry & Ferriss, Proc. Phil. Acad., p. 
564, 1906.—STERKI, Proc. Ohio State Acad. Sci. IV, p. 382, 1907.—JacKson, 
Nautilus, XXI, p. 143, 1908—Lrrmonp, Shells of Maine, p. 37, 1908—WALKER, 
Nautilus, XXII, p. 6, pl. 1, fig. 4, 1908; XXII, p. 17, pl. 11, fig. 8, 1908—Ny- 
LANDER, Nautilus, XXII, p. 105, 1909—JouHNnson, Nautilus, XXIV, p. 72, 1910. 
Limnea desidiosa ApAMS, Amer. Journ. Sci., XL, p. 268, 1841.—GouLpD, 
Invert. Mass., p. 219, fig. 150, 1841—Apams, Thomp. Hist. Vt., p. 154, 1842.— 
Prescott, Cat. Sh. Mass., No. 195, 1842—MucHeEts, Bos. Journ. Nat. Hist., IV, 
p. 337, 1843ReEAp, Cat., 1845 ——ApaAms, Cat. Sh. in Cab. C. B. Ad., p. 32, 1847. 
—Reeve, P. Z. S., 1850, p. 49.—Stimpson, Sh. N. Eng., p. 52, 1851.—CHICKER- 
ING, List. Sh. Portland, Me., 1855 or 1856—Lerwis, Proc. Bost. Soc. N. H., VI, 
p. 2, 1856—Can. Nat. & Geol., II, p. 198, fig. 1857——Hiceins, Cat. Sh. Columbus, 
p. 6, 1858—Binney, Check List, p. 12, 1860-——WHuITEAVEs, Can. Nat. & Geol. 
VIII, p. 103, 1863.—?, CARPENTER, Rep. Brit. Ass., p. 607, 1864; Rep. Brit. Asso., 
1864, p. 630—Husparp & SmiTH, Ann. N. Y. Lyc. N. H., VII, p. 152, 1867.— 
Pratt, Proc. Daven. Acad. Sci., I, p. 166, 1867—Tryon, Amer. Journ. Conch., 
III, p. 196, 1867.—Currirr, Kent. Sci. Inst., Mis. Pub. No. 1, 1868.—Rep. N. Y. 
State Mus., XXII, -p. 23, 1868—Morcu, Amer. Journ. Conch., IV, p. 35, 1868.— 
