LYMN^EID^E OF NORTH AMERICA. 255 



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 early 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, pi. 13, figs. 19, 20, 1842. DsKAY, Zool. N. Y., p. 75, 1843. 

 CARLTON, Proc. Cal. Acad. Sci., IV, p. 51, 1869. ?!NGERSOLL, Rep. U. S. Geol. 

 & Geog. Surv. Terr., p. 406, 1876; Bull. U. S. Geol. & Geog. Surv. I, p. 139, 

 1875. 1 



Limnaa ferruginea CPR., Rep. Brit. Ass., 1856, pp. 265, 316. BINNEY, Check 

 List, p. 12, I860. CPR., Rep. Brit. Ass., 1864, p. 674. BINNEY, Land & F. W. 

 Sh. N. A., II, p. 67, fig. 110, 1865. SOWB., Conch. Icon., XVIII, Lim. sp. 80, pi. 

 12, fig. 80, a, b, 1872. CPR., Smith. Mis. Coll., 1873, p. 160. TRYON, Con. Hald. 

 Mon., p. 103 (77), 1872. CLESSIN, Mai. Blatt., n. s., Ill, p. 82, 1881. CKLL., 

 Journ. Conch., VI, p. 64, 1889. 



Lymncea ferruginea JAY, Cat., ed. 4, p. 269, 1852. ?HENDERSON, Univ. Colo. 

 Studies, IV, p. 185, 1907. 



Limnaus ferrugineus KUSTER, Conch. Cab., p. 52, taf. 11, figs. 22, 23, 24, 

 1862. 



Limnophysa ferruginea TRYON, Amer. Jour. Conch., 1, p. 257, 1865. 



Limnaa humilis var. ferruginea COOPER, Proc. Cal. Acad. Sci., IV, p. 96, 

 1870. WOOD, Nautilus, V, p. 56, 1891. KEEP, West Amer. Sh., p. 314, 1904. 



Lymncea truncatula DALL, Moll. Alaska, p. 73, 1905. 



SHELL: Small, ovate-conic, thin, more or less diaphaneous; color 

 yellowish or brownish horn, sometimes reddish ; surface shining, lines 

 of 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. Aperture length. Width. 



7.00 3.50 3.75 2.00 Type 



7.00 3.00 3.50 2.00 " 



7.50 3.75 4.10 2.10 Washington 



8.00 4.00 4.00 2.30 " 



7.00 4.00 3.75 2.10 



lr These references are extremely doubtful. The two specimens mentioned 

 by Ingersoll could not be found in the Smithsonian collection. 



