LYMN-^EIDJE OF NORTH AMERICA. 261 



XXI, p. 83, 1887.— Ckll., Ann. Mag. N. H., ser. 5, XIX, p. 176, 1887.— Shimek, 

 Amer. Geol., I, p. 151, 1888; Bull. Lab. N. H., Univ. Iowa, I, p. 69, 1888; Bull. 

 Lab. N. H. Univ. Iowa, I, p. 209, 1888— Holzinger, Rep. Nat. Hist. Surv. Minn., 

 XVI, p. 490, 1888— Cpr., Cat. Moll. R. I., Ed. 2, p. 5, 1889.— Shimek, Bull. Lab. 

 N. H. Univ. Iowa, I, pp. 209-212, 1890.— Ottawa Nat., IV, p. 56, 1890.— Wood, 

 Nautilus, V, p. 56, 1891. — Sampson, Ann. Rep. Geol. Surv. Ark., II, p. 193, 

 1891.— Fox, Nautilus, IV, p. 114, 1891.— McGee, Rep. U. S. Geol. Surv., XI, pp. 

 461, 471, 1891.— Pleas, Nautilus, IV, p. 131, 1891.— Taylor, Ottawa Nat., VI, 

 p. 35, 1892.— Singley, Rep. Geol. Surv. Texas, IV, p. 188, 1892; p. 313, 1893.— 

 Dean, Amer. Nat.. XXVI. p. 18, 1892.— Walker, Nautilus, VI, p. 34, 1892 — 

 Marshall, Rep. N. Y. State Mus., XL VII, p. 65, 1893.— Vaughan, Amer. Nat., 



XXVII, p. 944, 1893.— Sampson, Nautilus, VII, p. 33, 1893.— Stearns, N. Am. 

 Fauna, VII, p. 275, 1893.— Pilsbry, Proc. Phil. Acad., 1894, p. 24.— Squyer, 

 Nautilus, VIII, p. 65, 1894.— Stupakoff, Nautilus, VII, p. 135, 1894.— Walker, 

 Rev. Mol. Mich., p. 17, 1894.— Marshall, Rep. N. Y. World's Fair, p. 512, 1894; 

 Rep. N. Y. State Mus., XLVIII, p. 642, 1895.— Shick, Nautilus, VIII, p. 138, 

 1895.— Harper, Journ. Cin. Soc. N. H., XVIII, p. 95, 1895.— Whiteaves, Ottawa 

 Nat., IX, p. 22, 1895.— Sargent, Nautilus, IX, p. 127, 1896.— Dana, Geology, p. 

 966, 1896. — Pilsbry and Rhoads, Proc. Phil. Acad., 1896, p. 493.— Udden, Proc. 

 Iowa Acad., V, p. 103, 1897.— Baker, Nautilus, XI, p. 30, 1897.— Wiswall. Nat. 

 Sci. Journ.. I, p. 47, 1897.— Shimek, Proc. Iowa Acad. Sci., V, pp. 35, 44, 1897 — 

 Hershey, Amer. Journ. Sci., iv, IV, p. 96, 1897. — Pilsbry, Amer. Journ. Sci., 

 iv, V, p. 233, 1898.— Todd, Proc. Iowa Acad., VI, p. 127, 1898.— Baker, Trans. 

 Acad. Sci. St. Louis, VIII, p. 89, 1898; Nautilus, XII, p. 65, 1898.— Walker, 

 Nautilus, XI, p. 122, 1898. — Beyer, Proc. Iowa Acad., VI, p. 118, 1898. — Pils- 

 bry, Nautilus, XIII, p. 65, 1899; Nautilus, XIII, p. 79, 1899.— Smith, Nautilus, 

 XIII, p. 35, 1899.— Baker, Nautilus, XIII, p. 30, 1899.— Hanham, Nautilus, XIII, 

 p. 6, 1899.— Leverett, Mon. U. S. Geol. Surv., XXXVIII, pp. 169, 170, 171, 172, 

 1899.— Todd, Proc. Iowa Acad. Sci., VI, p. 127, 1899.— Sterki, An. Rep. Ohio 

 State Acad. Sci,, VIII, p. 34, 1900.— Pilsbry, Nautilus, XIV, p. 10, 1900.— Price, 

 Nautilus, XIV, p. 76, 1900.— Pils. & Cock., Nautilus, XIV, p. 86, 1900.— Stearns, 

 Nautilus, XIII, p. 101, 1900; Nautilus, XIII, p. 132, 1900.— Shimek, Amer. Geol, 



XXVIII, p. 354, 1901; Geol. Surv. Iowa. p. 264. 1901; Bull. Lab. N. H. Univ. 

 Iowa, V, p. 208, 1901.— Stearns, Proc. Nat. Mus., XXIV, p. 288, 1901.— Baker, 

 Trans. Acad. Sci. St. Louis, XI, p. 9, pi. 1, fig. 14, 1901. — Sterki, An. Rep. Geol. 

 Surv. Tex., Ill, p. 263. 1901.— Daniels, An. Rep. Dept. Geol. Nat. Res. Ind., 

 XXVII, p. 637, 1902.— Elrod., Bull. Univ. Mont. Biol., ser. No. 3, p. 172, 1902.— 

 Baker, Moll. Chi. Area, p. 268, pi. 30. fig. 21, text fig. 86, 1902.— Shimek. Geol. 

 Surv. Iowa, 1902, pp. 171, 172.— Walker, Geol. Surv. Mich., VIII, pt. 3. p. 101, 

 1903.— Baker, Nautilus, XVII, p. 39, 1903.— Fuller & Clapp, Bull. Geol. Soc. 

 Amer., XIV, p. 162, 1903.— Shimek, Bull. Lab. N. H. Univ. Iowa, V. p.' 379. 1904. 

 —Baker, Nautilus, XVII, p. 113, 1904.— Keep, West. Amer. Sh., p. 314, 1904.— 

 Baker, Trans. Acad. Sci. St. Louis, XIV, p. 103, 1904.— Letson, Bull. N. Y. State 

 Mus., LXXXVIII, p. 56, 1905.— Chadwick, Bull. Wis. Nat. Hist. Soc. n. s.. iv. p. 

 82, 1906 ; Nautilus, XX, p. 22, 1906.— Wheat, Bull. Brook. Conch. Club., I, p. 10. 

 1907.— Letson, Bull. Buf. Soc. Nat. Sci., IX, p. 242, 1909. 



Limnca humilis DeKay, Zool. N. Y.. p. 71, pi. 4. figs. 71, a. b.. 1843. — 

 Mighels, Bost. Journ. N. H., IV. p. 336, 1843.— Haldeman. Rupp's Hist. Lane. 

 Co., p. 480, 1844. — Anthony, L. & F.-W. Sh. Cin., 1848. — Gould, Agassiz"s Lake 



