LYMNAZIDA OF NORTH AMERICA. 25d 
Of this species Hemphill says: “I collected a few specimens of 
this interesting shell in the month of June, 1868, at this locality, after 
a long and hard day’s ride of 40 miles horseback. Another long ride 
next day of 50 miles to water compelled an eau) start, and thus the 
opportunity to secure more specimens was lost.” 
It is very desirable that additional specimens be secured alive that 
the anatomy may be examined. 
Galba ferruginea (Haldeman). Plate XXXI, figures 15-19. 
Limnea ferruginea HALDEMAN, Mon. Lim., pt. 3, third page of cover, March, 
1841; pt. 4, p. 49, pl. 13, figs. 19, 20, 129 Dee Zool. N. Y., p. 75, 1843.— 
CarLTon, Proc. Cal. Acad. Sci., IV, p. 51, 1869.—?INGERSOLL, Rep. U. S. Geol. 
& Geog. Surv. Terr., p. 406, 1876; Bull. U. S. Geol. & Geog. Surv. I, p. 139, 
1875.7 
Limnea ferruginea Crr., Rep. Brit. Ass., 1856, pp. 265, 316—Binney, Check 
List, p. 12, 1860.—Cpr., Rep. Brit. Ass., 1864, p. 674.—-BInNEY, Land & F. W. 
Sh. N. A., II, p. 67, fig. 110, 1865.—Sows., Conch. Icon., XVIII, Lim. sp. 80, pl. 
12, fig. 80, a, b, 1872—Cpr., Smith. Mis. Coll., 1873, p. 160—Tryon, Con. Hald. 
Mon., p. 103 (77), 1872.—CieEssin, Mal. Blatt. n. s., III, p. 82, 1881.—CKLL., 
Journ. Conch., VI, p. 64, 1889. 
Lymnea ferruginea Jay, Cat., ed. 4, p. 269, 1852—?HENpERSoNn, Univ. Colo. 
Studies, IV, p. 185, 1907. 
Limneus ferrugineus Kuster, Conch. Cab., p. 52, taf. 11, figs. 22, 23, 24, 
1862. 
Limnophysa ferruginea Tryon, Amer. Jour. Conch., 1, p. 257, 1865. 
Limnea humilis var. ferruginea Cooper, Proc. Cal. het Sci., IV, p. 96, 
1870.—Woop, Nautilus, V, p. 56, 1891—Krrpr, West Amer. Sh., p. 314, 1904. 
Lymnea truncatula Dati, Moll. Alaska, p. 73, 1905. 
SHELL: Small, ovate-conic, thin, more or less diaphaneous; color 
yellowish or brownish horn, sometimes reddish; surface shining, lines 
ef growth rather coarse, prominent, without spiral lines; whorls 5, 
rounded, the body-whorl quite convex; spire acutely conic, about as 
long as the aperture, generally rather strongly shouldered near the 
suture; sutures well impressed, constricting the whorls; aperture 
ovate; outer lip thin; inner lip narrow, somewhat triangular, rolled 
over and appressed tightly to the umbilical region, either tightly closing 
the umbilicus or else leaving a very small chink; parietal callus very 
thin; columella twisted in some individuals so as to form a distinct, 
ascending plait, but in others it is flatly excavated. 
Length. Width. Aperturelength. Width. 
7.00 3.50 3.75 2.00 Type 
7.00 3.00 3.50 2.00 f 
7.50 Bu) 4.10 2.10 Washington 
8.00 4.00 4.00 2.30 My 
7.00 4.00 3.75 2.10 i 

p 1These references are extremely doubtful. The two specimens mentioned 
by Ingersoll could not be found in the Smithsonian collection. 
