164 THE CHICAGO ACADEMY OF SCIENCES. 
1855 to 1856—Lewis, Proc. Bos. Soc. N. H., VI, p. 2, 1856—Turts, Proc. 
Essex Inst., I, p. 30, 1856; Can. Nat. & Geol., II, p. 197, figure, 1857.—TRue, 
Proc. Essex Inst., II, p. 195, 1857—Binney, Check List, p. 12, 1860.—REEVE, 
Elements of Conch., p. 178, 1860—LapuHam, Proc. Phil. Acad., 1860, p. 155.— 
WHITEAVES, ‘Can. Nat. & Geol., VI, p. 453, 1861; Can. Nat. & Geol. VI, p. 458, 
1861—Gass, Proc. Phil. Acad., 1861, p. 309—WutTEAvEs, Can. Nat. & Geol. 
VIII, p. 102, 1863—Tryon, Proc. Phil. Acad., 1861, p. 398—Binney, Land & 
F.-W. Sh. N. A,, II, p. 32, fig. 38, 1865—Husparp & Smitu, Ann. N. Y. Lye. 
N. H., VIII, p. 152, 1867—Tryon, Amer. Journ. Conch., III, p. 196, 1867.— 
CurRIER, Kent. Sci. Inst., Mis. Pub., No. 1, 1868—GouLp, Invert. Mass., Bin. 
Ed., p. 471, fig. 723, 1870—SmitH & Prime, Ann. Lyc. N. H., IX, p. 402, 1870.— 
Dat, Proc. Bos. Soc. N. H., XIII, p. 248, 1870—Tryon, Con. Hald. Mon., | 
p. 88 (62), 1872 (fig. 1, pl. 16 of Succinea pellucida Lea). Byrnes, L. & F.-W. 
Sh. Cin., p. 1, 1872—Sows., Conch. Icon., XVIII, Lim. sp. 36, pl. 10, fig. 36 b., 
1872.—JEFFREYS, Ann. Mag. N. H., iv., X, p. 247, 1872—SmiTH, Rep. U. S. 
Fish Com., pp. 701, 707, 1874.—JEFrreys, Journ. Conch., I, p. 16, 1874——WALKER 
and BreecHer, Proc. Ann Arb. Sci. Asso., p. 45, 1876—Jones, Moll. Nova Scotia, 
p. 10, 1877—WatkeEr, Journ. Conch., II, p. 330, 1879—HeEron, Ottawa Nat., 
I, p. 39, 1880; 35th Rep. N. Y. State Mus., p. 112, 1882—Jorpan, Nova Acta 
Ksl.-Leop.-Carol. Deutsch. Akad. Natur., XLV, p. 367, 1883—Ottawa Nat. I, 
p. 132, 1884—WeEsTERLUND, Vega. Expd., IV, p. 166, 1885.—Sampson, Bull., 
Sedalia N. H. Soc., No. 1, pp. 22, 23, 24, 1885—BEAucHAMpP, Sh. N. Y. State, 
p. 3, 1886.—HeiLprin, Trans. Wagner Inst., I, pp. 38, 49, 50, 1887—-SAMPSON, 
Amer. Nat. XXI, p. 85, 1887—H. F. Carpenter, Sh. bear. Moll. R. I., 2nd ed., 
p. 5, 1889——TayLor, Journ. Conch., VI, pp. 284, 287, 1890.—Ottawa Nat., IV, 
p. 55, 1890.—Pitspry, Nautilus, IV, p. 47, 1890—StEarns, Proc. Nat. Mus., XIV, 
p. 101, 1891—Watton, Proc. Roch. Acad. Sci., II, p. 12, pl. 6, figs. 3, 4, 1891.— 
Sampson, Ann. Rep. Ark. Geol. Surv., II, 1891, p. 194——Pirspry, Proc. Phil. 
Acad., p. 406, 1891——Taytor, Ottawa Nat., VI, p. 35, 1892—Watker, Nautilus, 
VI, p. 33, 1892—Dran, Amer. Nat., XXVI, p. 11, 1892—Sampson, Nautilus, 
VII, p. 33, 1893—-VAuGHAN, Amer. Nat., XXVII, p. 952, 1893.—MArRSHALL, 
Rep. N. Y. State Mus., XLVII, p. 64, 1893; Rep. N. Y. Exhibits World’s Fair, 
p. 510, 1893.—Pirspry, Proc. Phil. Acad., 1894, p. 24-—Sinctry, An. Rep. Geol. 
Surv. Texas, IV, p. 313, 1893—-Stupakorr, Nautilus, VII, p. 135, 1894— 
Watker, Rev. Moll. Fauna Mich., p. 18, 1894—Suicx, Nautilus, VIII, p. 137, 
1895.—SarGENT, Nautilus, IX, p. 127, 1896.—Pitspry and Ruoaps, Proc. Phil. 
Acad., 1896, p. 493.—Baker, Journ. Cin. Soc. N. H., XIX, p. 78, 1897; Trans. 
Acad. Sci. St. Louis, VIII, p. 88, 1898—Maury, Chautauqua Lake Shells, p. 25, 
pl. 3, fig. 22, 1898 —Ruoaps, Nautilus, XII, p. 138, 1899—STEerk1, Ann. Rep. Ohio 
St. Acad. Sci., VIII, p. 34, 19090—StTEARNS, Proc. Nat. Mus., XXIV, p. 291, 1901.— 
—Letson, Bull. Buf. Soc. N. Sci. VII, No. I, p. 244, 1901; Bull, N. Y. State 
Mus., IX, No. 45, p. 244, 1901.—Baxer, Trans. Acad. Sci. St. Louis, XI, p. 2; 
pl. 1, fig. 13, 1901; Moll. Chi. Area, p. 260, figs. 82, 83, pl. 30, fig. 26, 1902.— 
Daniets, Rep. Dept. Geol. and Nat. Res., Ind., XX VII, p. 636, 1902—BLATCHLEY 
and DANIELS, Rep. Dept. Geol. and Nat. Res., Ind., XX VII, p. 598, pl. 1, fig. 
15, 1902.—Pirssry, Proc. Phil. Acad., p. 776, 1903—HrinkK ey, Nautilus, XVIII, 
p. 45, 1904—Letson, Bull. N. Y. State Mus., LXXXVIII, p. 52, 1905.—CHap- 
wick, Nautilus, XX p. 22, 1906; Bull. Wis. Soc. N. H., N. S., IV, p. 81, 1906.— 
Letson, Bull. Buf. Soc. Nat. Sci., IX, p. 242, 1909. 
