Oc. Papers, Cat. Acap. Sci., Vor. X 
[Van Denpurcu 
Bice dis 
ac¢ : } 
enyo, Lower California Rattlesnake 
Section of skin of specimen collected at San 
Crotalus 
Jose del Cabo, Lower California, Mexico 
Fic. 2. Crotalus tigris, Tiger Rattlesnake 
Section of skin of specimen collected eighteen miles north of 
Tueson, Pima County, 
May, 1912. 
\rizons 
Pati 
\, 
103 
