48. CROTALUS 



208. Crotalus molossus Baird & Girard 



Black-tailed Rattlesnake 

 Plates 99 and 106 



Crotalus molossus Baird & Girard, Cat. N. Amer. Rept., Pt. I, Serpents' 



1853, p. 10 (type locality, Fort Webster, St. Rita del Cobre, 



New Mexico); Dumeril et Bibron, Erpetol. Gener., Vol. VII, 



1854, p. 1482; Baird, Rep. U. S. Mex. Bound. Surv., Vol. II, 

 Rept., 1859, p. 14, pi. 2; Cope, Proc. Acad. Nat. Sci. Phila., 1859, 

 p. 338; Baird, Rep. Pac. R. R. Surv., Vol. X, Rept., pi. XXIV, 

 fig. 5; Cope, Bull. U. S. Nat. Mus., No. i, 1875, P- 33; Cope, in 

 Yarrow, Surv. W. looth Merid., Vol. V, 1875, P- 533; Cope, 

 Proc. Acad. Nat. Sci. TPhila., 1883, p. 12; Garman, Mem. Mus. 

 Compr. Zool., Cambr., Vol. VIII, No. 3, 1883, p. 113; Yarrow, 

 Bull. U. S. Nat. Mus., No. 24, 1883, pp. 12, 78; Garman, Bull. 

 Essex Inst., Vol. XIX, 1888, p. 123; Cope, Proc. U. S. Nat. Mus., 

 Vol. XIV, 1892, p. 688; Stejneger, Report U. S. Nat. Mus. for 

 1893, 189s, P- 424, pl. 8; Van Denburgh, Proc. Cal. Acad. Sci., 

 Ser. 2, Vol. 6, 1896, p. 348; Cope, Report U. S. Nat. Mus. for 

 1898, 1900, p. 1 1 54, fig. 330; Brown, Proc. Acad. Nat. Sci. Phila., 

 1901, p. loi; Stejneger, Proc. U. S. Nat. Mus., Vol. XXV, 1902, 

 p. 158; Bailev, N. Amer. Fauna, No. 25, 1905, pp. 35, 50; Dit- 

 MARS, Reptile Book, 1907, p. 440, pis. CXXIX, fig. 6, CXXX, 

 fig. 4, CXXXIII, fig. 2; Stone, Proc. Acad. Nat. Sci. Phila., 191 1, 

 p. 232; Van Denburgh & Slevin, Proc. Cal. Acad. Sci., Ser. 4, 

 Vol. 3, 1913, p. 426, pis. XVII, XXV, fig. i; Strecker, Baylor 

 Bulletin, Vol. XVIII, No. 4, 1915, p. 43; Stejneger & Barbour, 

 Check List N. Amer. Amph. Rept., 1917, p. no; Vorhies, Univ. 

 Ariz. Agric. Exper. Station Bull. No. 83, 1917, p. 359, pl. I, fig. 2. 



Crotalus ornatus Hallowell, Proc. Acad. Nat. Sci. Phila., 1854, p. 192 

 (type locality, Pecos River, between El Paso and San An- 

 tonio, Texas); Hallowell, Rep. Pac. R. R. Surv., Vol. X, 1859, 

 p. 23, pl. II; Cope, Proc. Acad. Nat. Sci. Phila., 1859, p. 338. 



Caudisona molossus Cope, in Mitchell's Research. Venom Rattles., 

 1861, p. 124; Cope, Proc. Acad. Nat. Sci. Phila., 1866, p. 308; 

 Coues, Surv. W. looth Merid., Vol. V, 1875, p. 605. 



Crotalus durissus var. molossus Garman, Mem. Mus. Compr. Zool. 

 Cambr., Vol. VIII, No. 3, 1883, p. 171. 



Crotalus terrificus Boulencer, Cat. Snakes Brit. Mus., Vol. Ill, 1896, 

 p. 573 (part). 



