210 THE CHICAGO ACADEMY OF SCIENCES. 



Limnophysa bulimoides TRYON, Amer. Journ. Conch., I, p. 256, 1865. 

 CARLTON, Proc. Cal. 'Acad. Sci., IV, p. 57, 1869. COOPER, Proc. Cal. Acad. Sci., 

 IV, pp. 173, 174, 1872.* DECAMP, Kent. Sci. Inst, Mis. Pub., No. 5, p. 8, 1881.* 

 CALL, Bull. U. S. Geol. Surv., II, p. 372, 1884 (part). RUSSELL, An. Rep. U. S. 

 Geol. Surv., IV, p. 460, 1884.* KEEP, West Coast Shells, p. 122, 1887 (part). 

 COOPER, An. Rep. Cal. State Min. Bu., VII, p. 245, 1888 (part) ; Proc. Cal. Acad. 

 Sci. ii, III, p. 70, 1890. GILBERT, Mon. U. S. Geol. Surv., I, pp. 290, 395, 1890.* 



Lymncea bulimoides WHEATLEY, Cat. Sh. U. S., Ed. 2, p. 23, 1845. COOPER, 

 Amer. Nat., II, p. 486, 1868*; Am. Nat., Ill, p. 297, 1869.* SCUDDER, Bull. Nat. 

 Mus., 23, pp. 33, 43, 200, 1885. HENDERSON, Univ. Col. Studies, IV, pp. 93, 179, 

 j.907.* WALKER, Nautilus, XX, p. 108, 1907. 



Lymncea (Stagnicola) bulimoides DALL, Alaska Moll., p. 79, 1905. 



Limneus cubensis var. bulimoides PILSBRY, Proc. Phil. Acad., 1891, p. 320.* 



Limncea humilis RANDOLPH, Nautilus, IX, p. 102, 1896. 



Lymncea bryanii BAKER, Nautilus, XVIII, p. 141, April, 1905. 



Lymncea humilis modicella BERRY, Nautilus, XXIII, p. 77, 1909. 



Limncea adelince TRYON, Proc. Phil. Acad., 1863, p. 148, pi. 1, fig. 12. 

 CPR., Rep. Brit. Asso., 1864, p. 674. BINNEY, L. & F. W. Sh. N. A., II, p. 59, 

 fig. 92, 1865. COOPER, Proc. Cal. Acad. Sci., IV, p. 96, 1870. CPR., Smith. Mis. 

 Coll., 1872, p. 160. TRYON, Con. Hald. Mon., p. 108 (82), pi. 18, fig. 6, 1872. 

 ROPER, Nautilus, III, p. 78, 1889. WOOD, Nautilus, V, p. 56, 1891. STEARNS, 

 Proc. Nat. Mus., XIV, pp. 101, 102, 1891. TAYLOR, Ottawa Nat., VI, p. 35, 1892. 

 PILSBRY, Nautilus, XVII, p. 84, 1903. KEEP, West. Amer. Sh., pp. 149, 314, 1904. 



Limnea adelince, Cat. Coll. Nat. Hist. Eth. Prov. Museum Victoria, p. 95, 

 1898. 



Limnophysa adelince TRYON, Amer. Journ. Conch., 1, p. 254, 1865. CALL, 

 Bull. U. S. Geol. Surv., II, p. 403, 1884. KEEP, West Coast Shells, p. 122, 1887. 



Limnceus adelince CLESSIN, Kiister, Conch. Cab., p. 404, 1886. 



Lymncea (Stagnicola} adelince DALL, Alaska Moll., p. 78, fig. 61, 1905. 



Limnophysa gabbi var. adelince COOPER, ZOE, I, p. 196, 1890. 



SHELL: Thin to robust, regularly ovate-conic in outline; perios- 

 tracum yellowish-horn color ; surface generally polished, semi-trans- 

 parent, growth lines very fine, crossed by a few inconspicuous spiral 

 lines ; the last whorl is malleated in some specimens ; whorls 5^2, rather 

 regularly and rapidly increasing in size, flatly rounded, the body whorl 

 usually convex; spire turreted, broadly-acutely conical, about as long 

 as the aperture; nuclear whorls 1^4> the second whorl very wide and 

 low, resembling in outline that of Galba jacksonensis; sutures well 

 impressed; aperture ovate or roundly-ovate, broadly and evenly 

 rounded below, narrowed and angulated above; outer lip thin; inner 

 lip triangular, reflected and rolled over into the umbilical region, leav- 

 ing a very small chink; parietal callus very thin. 



