PROCEEDINGS 



OF THE 



CALIFORNIA ACADEMY OF SCIENCES 



Fourth Series 



Vol. XI, No. 4, pp. 49-72 July 8, 1921 



IV 



A LIST OF THE AMPHIBIANS AND REPTILES OF THE 



PENINSULA OF LOWER CALIFORNIA, WITH 



NOTES ON THE SPECIES IN THE 



COLLECTION OF THE 



ACADEMY 



BY 

 JOHN VAN DENBURGH 



Curator of the Department of Herpetology 



AND 

 JOSEPH R. SLEVIN 



Assistant Curator of the Department of Herpetology 



This paper is primarily based upon a collection gathered by 

 Mr. Slevin, in the Cape Region of Lower California, Mexico, 

 in the months of June to September, 1919. Mr. Slevin also 

 made a small collection at Ensenada, in 1905, while a member 

 of the Academy's expedition to the Galapagos Islands. These 

 specimens, and also a few secured by Dr. Gustav Eisen in 

 June, 1899, at San Xavier, are included in this report. The 

 specimens are all in the collection of the Academy, with the 

 exception of those collected by Dr. Eisen, which were destroyed 

 in the great fire of April, 1906. 



The herpetology of Lower California was reviewed in sev- 

 eral papers published in these Proceedings in 1895 and 1896. 

 Since that time, throu gh the study by Mocquard 1 of a collection 



» Mocquard. Nout. Arch. Mus. Hist. Nat. Paris., Ser. 4, Vol. I, 1899, pp. 297-343, 

 pis. 11-13. 



July 8, 1M1 



