3c. PAPERS, CAL. ACAD. Sci., Vol.. X 



[VAN DHNBURGH] 



PLATE 104 



: %r 



FIG. 1. Crotalus mitchellii, Bleached Rattlesnake 

 dii i,f skin of specimen collected at San Jose '!el Cabo, L.ower California, Mi-xiro. 



FIG. 2. Crotalus cerastes, Horned Rattlesnake 

 Section of skin of specimen from the Mohave Desert, California. 



