48. CROTALUS 947 
Distribution—Crotalus enyo 1s known only from the 
southern part of the peninsula of Lower California. It was 
originally described from a specimen collected by John Xan- 
tus at Cape San Lucas. Since then, it has been found at La 
Paz, San José del Cabo, San Bartolo, Miraflores, Santa Anita, 
San Antonio, San Pedro, Todos Santos, and in the Sierra 
Laguna, all in the Cape Region. Mocquard has recorded 
specimens from Mulege. 
Habits —Mocquard states that small mammals are eaten 
by this rattlesnake. 
216. Crotalus tigris Kennicott 
Ticrr RarrLeEsNAKE 
Plates 103 and 113 
Crotalus tigris Kennicort, Rep. U. S. Mex. Bound. Surv., Vol. IJ, 
Rept., 1859, p. 14, pl. IV, (type locality, Sierra Verde and Pozo 
Verde. Deserts of Gila and Colorado); Bairp, Rep. Pac. 
R. R. Surv., Vol. X, 1859, Rept., p. 16, pl. XXX, fig. 1: Cope, 
Proc. Acad. Nat. Sci. Phila., 1859, p. 338; Cooper, in Cronise, 
Nat. Wealth California, 1868, p. 483; Cooper, Proc. Cal. Acad. 
Sci., Vol. IV, 1870, p. 66; Cope, Surv. W. tooth Merid., Vol. V, 
1875, p. 534; Cope, Bull. U. S. Nat. Mus., No. 1, 1875, pp. 33, 903 
Garman, Mem. Mus. Compr. Zool., Cambr., Vol. VIII, No. 3, 1883, 
pp: 117, 175; YARROW, Bull. U.S. Nat. Mus., No. 24, 1883, pp. 12,743 
Garman, Bull. Essex Inst., Vol. XVI, 1884, p. 35; YARROW, in 
Buck’s Ref. Handb. Med. Sci., Vol. VI, 1888, p. 166; Cope, Proc. 
U. S. Nat. Mus., Vol. XIV, 1892, p. 693; STEJNEGER, N. Amer. 
Fauna, No. 7, 1893, p. 214; Merriam, N. Amer. Fauna, No. 7, 
1893, p- 215; BouLencer, Cat. Snakes Brit. Mus., Vol. III, 1896, 
p- 580 (part); Van Densurcu, Occas. Papers Cal. Acad. Sci., V, 
1897, p- 220; Cope, Report U. S. Nat. Mus. for 1898, 1900, p. 1181, 
fig. 341; Brown, Proc. Acad. Nat. Sci. Phila., 1g01, p. 107; MEEK, 
Field Columbian Mus., Zool. Ser., Vol. VII, No. 1, 1906, p. 16; 
Dirmars, Reptile Book, 1907, p. 459; Van Densurcu & Stevin, 
Proc. Cal. Acad. Sci., Ser. 4, Vol. 3, 1913, p- 427, pls. XIX, XXVI, 
fig. 1; GrinneLt & Camp, Univ. Cal. Publ. Zool., Vol. 17, No. 10, 
1917, p- 197; STEJNEGER & Barpour, Check List N. Amer. Amph. 
