382 THE CHICAGO ACADEMY OF SCIENCES. 
Limne@a cornea VALENCIENNES, in Humboldt and Bonpland, Rec. d’obs. de 
Zool., II, p. 251, 1832.—FErussaAc, Bull. Zool., 1835, p. 33—Binney, L. & F.-W. 
Sh. N. A., II, p. 54, 1865; Journ. de Conch., XV, p. 427, 1867. 
Limnea sericata Z1EGLER, Rossmassler Icon., I, p. 98, 1837. 
Lymneus pinguis Say, Journ. Phil. Acad., V, p. 123, 1825, ed. Binney, p. 
114, 1858. 
Lymnea pinguis DeKay, Cat. An. N. Y., p. 32, 1839. 
Lymnea pinguis Goutp, Lamarck’s Genera, p. 69, 1833—WHEATLEY, Cat. 
U. S. Sh., p. 24, 1845. 
Limnea pinguis GouLp, Proc. Bost. Soc., N. H., III, p. 181, 1850 —BInney, 
L. & F.-W. Sh. N. A., II, p. 54, fig. 83, 1865—Tryon, Amer. Journ. Conch., III, 
p. 196, 1867—Sows., Conch. Icon., XVIII, Lim., pl. 8, fig. 49, 1872—Sows., 
Conch. Icon., XVIII, Lim. sp. 18, pl. 3, fig. 18; pl. 9, fig. 18 b; pl. 15, fig. 18 c. 
distorted, 1872. WALKER, Nautilus, IX, p. 4, 1895. 
Limnophysa pinguis Tryon, Amer. Journ. Conch., I, p. 253, 1865. 
Limnea catascopium var. pinguis Dawson, British N. A. Bound Com., p. 
349, 1875 (?).—Tryon, Con. Hald. Mon. p. 107 (81), 1872. 
Lymnea catascopium var. pinguis Jay, Cat., p. 268, 1852. 
Limnea catascopium var. pinguis Hatp., Mon. Lim., p. 7, pl. 1, figs. 10-12, 
1842. 
Lymnea catascopium pinguis BAKER, Moll. Chi. Area, II, p. 264, pl. 30, fig. 
27, 1902; Bull. Ill. State Lab. N. H., VII, p. 104, 1906. 
Lymnea linsleyi DEKay, Moll. N. Y., p. 72, pl. 4, fig. 74 a, b, 1843.— 
Linstey, Amer. Journ. Sci., i, XLVIII, p. 282, 1845.—Jay, Cat. Ed. 4, p. 270, 
1852. 
Limnea linsleyi Binney, Land & F.-W. Sh. N. A., II, p. 66, fig. 108, 1865.— 
Cressin, Mal. Blatt., n. s., III, p. 81, 1881. 
Limnea brownii Tryon, Amer. Journ. Conch., I, p. 229, pl. 23, fig. 15, 
1865; Amer. Journ. Conch., III, p. 196, 1867; Con. Hald. Mon., p. 110 (84), pl. 
18, fig. 8, 1872. 
Limnophysa brownti Tryon, Amer. Journ. Conch., I, p. 253, 1865. 
Limnea emarginata MITCHELL, Nautilus, XIII, p. 88, 1899. 
Limnea intertexta CurRRIER, Kent. Sci. Inst., Mis. Pub. No. 1, 1868.— 
WALKER, Journ. Conch., p. 330, 1879; Nautilus, VI, p. 33, 1892; Rev. Moll. Mich., 
pp. 18, 22, 1894. . 
Limnophysa intertexta DECAmP, Kent Sci. Inst., Mis. Pub., No. 5, p. 8, 
1881. : 
Limnea solida WuitEAvES, Can. Nat. & Geol., VI, p. 458, 1861; VIII, pp. 
51, 103, 1863. 
Limnea opacina Bett, Geol. Surv. Canada, Rep. Prog., p. 252, 1859; Can. 
Nat. & Geol., IV, p. 213, 1859—Dati, Alaska Moll., p. 80, 1905. 
SHELL: Varying from short-ovate to elongate-fusiform, thin to 
very thick and solid; periostracum light-horn to dark chestnut; sur- 
face dull to shining, in some specimens almost polished; lines of 
growth crowded, fine to coarse; spiral sculpture varying from faint 
to deeply incised, producing a wavy appearance, surface seldom mal- 
Pl. 9, fig. 18b, is said by Sowerby to have been named strigata. This prob- 
ably refers to strigosa Lea which is a variety of columella Say. 
