382 THE CHICAGO ACADEMY OF SCIENCES. 



Limncea cornea Valenciennes, in Humboldt and Bonpland, Rec. d'obs. de 

 Zool., II, p. 251, 1832.— Ferussac, Bull. Zool., 1835, p. 33— Binney, L. & F.-W. 

 Sh. X. A., II, p. 54, 1865 ; Journ. de Conch., XV, p. 427, 1867. 



Limncea sericata Ziegler, Rossmassler Icon., I, p. 98, 1837. 



Lymnccus pinguis Say, Journ. Phil. Acad., V, p. 123, 1825, ed. Binney, p. 

 114, 1858. 



Lymnea pinguis DeKay, Cat. An. X. Y., p. 32, 1839. 



Lymncea pinguis Gould, Lamarck's Genera, p. 69, 1833. — Wheatley, Cat. 

 U. S. Sh., p. 24, 1845. 



Limncea pinguis Gould, Proc. Bost. Soc., X. H., Ill, p. 181, 1850. — Binney, 

 L. & F.-W. Sh. X. A., II, p. 54, fig. 83, 1865.— Tryon, Amer. Journ. Conch., Ill, 

 p. 196, 1867. — Sowb., Conch. Icon., XVIII, Lim., pi. 8, fig. 49, 1872. — Sowb., 

 Conch. Icon., XVIII, Lim. sp. 18, pi. 3, fig. 18; pi. 9, fig. 18 b; pi. 15, fig. 18 c. 

 distorted, 1872. 1 — Walker, Xautilus, IX, p. 4, 1895. 



Limnophysa pinguis Tryon, Amer. Journ. Conch., I, p. 253, 1865. 



Limncra catascopium var. pinguis Dawson, British X. A. Bound Com., p. 

 349, 1875 (?).— Tryon, Con. Hald. Mon. p. 107 (81), 1872. 



Lymncea catascopium var. pinguis Jay, Cat., p. 268, 1852. 



Limnca catascopium var. pinguis Hald., Mon. Lim., p. 7, pi. 1. figs. 10-12, 

 1842. 



Lymncea catascopium pinguis Baker, Moll. Chi. Area, II, p. 264, pi. 30, fig. 

 27. 1902 ; Bull. 111. State Lab. X. H., VII, p. 104, 1906. 



Lymncea linsleyi DeKay, Moll. X. Y., p. 72, pi. 4, fig. 74 a, b, 1843. — 

 Linsley, Amer. Journ. Sci., i, XLVIII, p. 282, 1845.— Jay, Cat. Ed. 4, p. 270, 

 1852. 



Limncra linsleyi Binney, Land & F.-W. Sh. X. A., II, p. 66, fig. 108, 1865. — 

 Clessin, Mai. Blatt, n. s., Ill, p. 81, 1381. 



Limncea brozvnii Tryon, Amer. Journ. Conch., I, p. 229, pi. 23, fig. 15, 

 1865; Amer. Journ. Conch., Ill, p. 196. 1S67 ; Con. Hald. Mon., p. 110 (84), pi. 

 18, fig. 8, 1872. 



Limnophysa brozvnii Tryon, Amer. Journ. Conch., I, p. 253, 1865. 



Limncra emarginata Mitchell, Xautilus, XIII, p. 88, 1899. 



Limncea intertexta Currier, Kent. Sci. Inst., Mis. Pub. Xo. 1, 1868. — 

 Walker, Journ. Conch., p. 330, 1879 ; Xautilus, VI, p. 33, 1892 ; Rev. Moll. Mich., 

 pp. 18, 22, 1894. 



Limnophysa intertexta DeCamp, Kent Sci. Inst., Mis. Pub., Xo. 5, p. 8, 

 1881. 



Limncea solida Whiteayes, Can. Xat. & Geol., VI, p. 458, 1861; VIII, pp. 

 51, 103, 1863. 



Limncea opacina Bell, Geol. Sun - . Canada, Rep. Prog., p. 252. 1859; Can. 

 Xat. & Geol., IV, p. 213, 1359.— Dall, 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. 



