48. CROTALUS 927 
1853, p. 217, Zool. pl. 1; HALLoweELt. Proc. Acad. Nat. Sci. Phila., 
1856, p. 250; Bairp, U. S. Pac. R. R. Surv., Vol. X, 1859, Rept., 
p- 40; Bairp, U. S. Mex. Bound. Surv., Vol. II, 1859, Rept., p. 14; 
Core, Proc. Acad. Nat. Sci. Phila., 1859 (1860), p. 337; Cooper, 
U. S. Pac. R. R. Surv., Vol. XII, Pt. III, 1860, p. 295, pl. XII; 
Cooper, Amer. Naturalist, 1869, p. 124; Corr, Bull. U. S. Nat. 
Mus., No. 1, 1875, p. 33; YARRow, Surv. W. rooth Merid., Vol. 
V, 1875, p. 530 (part); Cours & Yarrow, Bull. Geol. Surv. Terr. 
(Hayden), Vol. IV, No. 1, 1878, p. 262; Copr, Amer. Naturalist, 
Vol. XIII, 1879, p. 435; Cope, Bull. U. S. Nat. Mus., No. 17, 
1880, p. 24; Cracin, Trans. Kansas Acad. Sci., Vol. VII, 1881, 
p- 121; Garman, Mem. Mus. Compr. Zool., Vol. VIII, No. 3, 
1883, pp. 114, 172; Garman, Bull. Essex Inst., Vol. XVI, No. 1, 
1884, p. 34; STEJNEGER, N. Amer. Fauna, No. 5, 1891, p. 111; 
Tayzor, Ann. Rep. Nebraska State Board Agric. for 1891, 1892, 
p- 354; Hay, Proc. U. S. Nat. Mus., Vol. XV, 1892, p. 387; Cougs, 
Hist. Exp. Lewis & Clark, 1893, Vol. I, p. 313, Vol. II, p. 373; 
STEJNEGER, Report U. S. Nat. Mus. for 1893, 1895, p. 440, pl. 
12; BouLencer, Cat. Snakes Brit. Mus., Vol. III, 1896, p. 576 
(part); Van Densurcu, Occas. Papers Cal. Acad. Sci., Vol. V, 
1897, p- 218, fig; Brown, Proc. Acad. Nat. Sci. Phila., 1901, p. 
104; Brown, Proc. Acad. Nat. Sci. Phila., 1903, p. 551; BRANson, 
Kansas Univ. Sci. Bull., Vol. II, No. 13, 1904, p. 426, fig. 39; BarLey, 
N. Amer. Fauna, No. 25, 1905, pp. 35, 50; Mozrey, Trans. Kansas 
Acad. Sci., Vol. VI, reprint, 1906, p. 35; Dirmars, Reptile Book, 
1907, p. 455, pls. CXXIX, fig. 4, CXXX, fig. 3, CX XXIV, fig. 1; 
Cary, N. Amer. Fauna, No. 33, 1911, pp. 21, 23, 27; Exuis & 
Henperson, Univ. Colorado Studies, Vol. X, No. 2, 1913, p. 109; 
SrreckeR, Baylor Bulletin, Vol. XVIII, No. 4, 1915, p. 44; Extis 
& Henperson, Univ. Colorado Bull., Vol. XV, No. 6, 1915, p. 
263; Voruies, Univ. Ariz. Agric. Exper. Station Bull. No. 83, 
1917, p. 360; SreyNEGER & Barsour, Check List N. Amer. Amph. 
Rept., 1917, p. 109; VAN Densurcu & Stevi, Proc. Cal. Acad. 
Sci., Ser. 4, Vol. XI, 1921, p. 40. 
Crotalus lecontei Hattowe.t, Proc. Acad. Nat. Sci. Phila., Vol. VI, 
1852, p. 180 (type locality, Cross Timbers); Hattowe t, in Sit- 
greaves’ Exped. Zufi and Colorado Rivers, 1854, p. 139 (part). 
Crotalus adamanteus var. confluentus, JAN, Rev. et Mag. Zool., 1859, 
No. 12, repr. p. 28; Jan, Elenco Sist. degli Ofidi, 1863, p. 124. 
