Sheppard, J. 1970. June 8, Mimeo Report on Crotaphytus silus . 



Smith, H. M. 1946. Handbook of lizards . Comstock Publishing Co., Ithaca, N. Y, 



Stebbins, R. C. 1954. Amphibians and reptiles of western North America. 



McGraw Hill Book Co . , Inc . 

 Wilbur, S. (pers. comm., 1970). 



95 



