CHECK LIST N. AMER. AMPH. KEPT. 133 



Crotalus atrox atrox Brown 



Proc. Ac. Nat. Sci. Phila., 1901, p. 103. 

 Crotalus adamanteiis scutulatus Cope 



Ann. Rep. U. S. Nat. Mus., 1898 (1900), p. 1158, fig. 332. 

 Crotalus adamanteus atrox Cope 



Ann. Rep. U. S. Nat. Mus., 1898 (1900), p. 1164, fig. 334. 



TYPE locality: San Pedro, Texas. 



range: Texas and northern Mexico to Arizona; Colorado and 

 southern California, also Lower California. 



Crotalus atrox elegans Schmidt 

 Crotalus atrox elegans Schmidt 



Bull. Amer. Mus. Nat. Hist., Vol. 46, Dec. 7, 1922, p. 699. 



TYPE locality: Angel de la Guardia [sic] Island, Lower Cali- 

 fornia. 

 range: Angel de la Guarda Island. 



Crotalus atrox lucasensis (Van Denburgh) 



Crotalus lucasensis Van Denburgh 



Proc. Calif. Ac. Sci., Ser. 4, Vol. 10, Aug. 6, 1920, p. 29, pi. 3. 

 Crotalus atrox lucasensis Schmidt 



Bull. Amer. Mus. Nat. Hist., Vol. 46, Dec. 7, 1922, p. 698. 



TYPE locality: Agua Caliente, Lower California. 

 range: Southern Lower California. 



Crotalus atrox tortugensis (Van Denburgh and Slevin) 

 Crotalus tortugensis Van Denburgh and Slevin 



Proc. Calif. Ac. Sci., Ser. 4, Vol. 11, Dec. 17, 1921, p. 398. 



TYPE locality: Tortuga Island, Lower California. 

 range: Same. 



Crotalus cerastes Hallowell 



SIDEWINDER 



Crotalus cerastes Hallowell 



Proc. Ac. Nat. Sci. Phila., Vol. 7, 1854, p. 95. 

 Crotalus cerastes Cope 



Ann. Rep. U. S. Nat. Mus., 1898 (1900), p. 1196, fig. 347. 



TYPE locality: Mojave Desert. 



range: Northeastern Lower California, southern California, 

 southern Nevada, Arizona, southwestern Utah. 



Crotalus confluentus confluentus (Say) 



PRAIRIE RATTLER 



Crotalus ccmfluentus Say 



Long's Exp. Rocky Mts., Vol. 2, 1923, p. 48. 



