LYMN^IDyE OF NORTH AMERICA. 243 



Galba parva (Lea). Plate XXIX, figures 5-14; plate XXX, 

 figures 9-12. 



Lymnea parva Lea, Proc. Amer. Phil. Soc, II, p. 33, 1841; Trans. Amer. 

 Phil. Soc, IX, p. 11, 1844; Obs., IV, p. 11, 1848.— Hanna, Nautilus, XXIII, p. 

 .96, 1909.— Scudder, Bull. Nat. Mus., 23, pp. 33, 44, 201, 1885. 



Lymncea parva Wheatley, Cat. U. S. Shells, p. 23, 1845. — Wolf, Amer. 

 Journ. Conch., VI, p. 28, 1870.— Baker, Nautilus, XVIII, p. 126, 1905; Bull. 111. 

 State Lab. N. H., VII, p. 104, 1906.— Walker, Journ. Conch., XII, p. 240, 1909 — 

 Lermond, Shells of Maine, p. 38, 1908.— Baker, Nautilus, XXIII, p. 94.— Pilsbry 

 and Ferris, Proc. Phil. Acad., 1909, p. 515, 1910. 



Lymncea parvus Henderson, Univ. Col. Studies, IV, pp. 93, 179, fig. 32, 

 1907.— Sterki, Proc. Ohio State Acad. Sci., IV, p. 382, 1907. 



Limncea parva Bell, Geol. Surv. Can., Rep. Prog., p. 252, 1859. — Binney, 

 Check List, p. 12, 1860; L. & F. W. Sh. N. A., II, p. 64, fig. 102, 1865.— Tryon, 

 Amer. Journ. Conch., Ill, p. 196, 1867.— Clessin, Mai. Blatt, n. s., Ill, p. 81, 

 1881.— Marsh, Conch. Exch., II, p. 110, 1887.— Clapp, Nautilus, VIII, p. 116, 

 1895.— Chadwick, Bull. Wis. Nat. H. Soc, n. s., IV, p. 83, 1906. 

 Limnea parva Anthony, List. L. & F. W. Sh. Cin., 1843. 

 Limncza humilis parva Shimek, Bull. Lab. N. H. Univ. Iowa, I, pp. 209, 

 210, 211, 1890; Bull. Lab. N. H. Univ. Iowa, II, p. 90, 1893. 



Limnophysa humilis McGee and Call, Amer. Journ. Sci., iii, XXIX, p. 208, 

 1882 (part). 



Lymncea humilis var. parva? Jay, Cat., p. 269, 1852. 



Lymnea humilis var. parva Todd, Proc A. A. A. S., XXVII, p. 235, 1878. 



Lymnea curta Lea, Proc. Amer. Phil. Soc, II, p. 33, 1841; Trans. Amer. 



Phil. Soc, IX, p. 11, 1844; Obs., IV, p. 11, 1848; Journ. Phil. Acad., VI, p. 163, 



1866; Obs., XI, p. 119, 1867.— Scudder, Bull. Nat. Mus., 23, pp. 33, 44, 200, 1885. 



Lymncea curta Wheatley, Cat. U. S. Sh., p. 23, 1845. — Wolf, Amer. Journ. 



Conch., VI, p. 28, 1870. 



Limncea curta Binney, Check List, p. 12, 1860 ; Land & F. W. Sh. N. A., 

 II, p. 64, fig. 101, 1865.— Tryon, Amer. Journ. Conch., Ill, p. 196, 1867.— Clessin, 

 Mai. Blatt., n. s., Ill, p. 81, 1881. 



Limncea truncatula Whiteaves, Nautilus, XIX, p. 4, 1905 ; Ottawa Nat, 

 XIX, p. 66, 1905. 



Limncea tasezuelliana Wolf, Amer. Journ. Conch., V, p. 198, pi. 17, fig. 2, 

 1869.— Baker, Bull. 111. State Lab., N. H., VII, p. 103, 1906. 



Shell : Small, rather solid, turreted, translucent ; periostracum 

 light horn or yellowish white, pellucid ; surface shining, growth lines 

 close set and well marked, sometimes elevated so as to roughen the 

 surface of the last whorl ; spiral lines very fine or absent ; whorls 

 5-5^, very convex, regularly increasing in size; nucleus of l]/\ whorls, 

 smooth, with satin-finish sculpture ; in outline the nucleus is rounded, 

 the first whorl being very large ; the sculpture begins abruptly, as 

 shown in figure H, plate XLIX. Spire elevated, forming an acute 

 pyramid, generally longer than the aperture ; sutures deeply impressed ; 



