/ 





PROCEEDINGS 



OF THE 



CALIFORNIA ACADEMY OF SCIENCES 



Fourth Series 



Vol. XI, No. 6, pp. 95-98 July 30, 1921 



VI 



Preliminary Diagnoses of New Species of 



Reptiles from Islands in the Gulf of 



California, Mexico 



BY 



John Van Denburgh 



Curator, Department of Herpetology 



AND 



Joseph R. Slevin 



Assistant Curator, Department of Herpetology 



SAN FRANCISCO 



Published by the Academy 



1921 



