Vol. IV] VAN DENBURGH AND SLEVIN— ISLAND REPTILES ^^l 



INTRODUCTORY REMARKS. 



In June, 1905, the Academy published a paper entitled 

 "The Reptiles and Amphibians of the Islands of the Pacific 

 Coast of North America from the Farralons to Cape San 

 Lucas and the Revilla Gigedos." The greater portion of the 

 edition of this paper and nearly all the specimens upon which 

 it was based were destroyed in the great fire of April, 1906. 

 In building up a new reptile collection for the Academy effort 

 has been made to replace this material. Specimens of most of 

 the species hitherto reported from these islands are now at 

 hand, and a considerable number of kinds not previously 

 known from various islands will be recorded in the following 

 pages. Owing to the fact that the earlier paper is now out of 

 print, it has been thought best to include in this one all species 

 known from these islands, and in order to make the record 

 more complete we have added the species known from islands 

 in the Gulf of California, as well as those from Isabel, Las 

 Tres Marias, Clipperton and Cocos islands. 



We have at present no specimens from any of the islands 

 in the Gulf of California or from Isabel and the Tres Marias 

 islands. An account of the reptiles of the latter islands has 

 been published by Dr. Stejneger in North American Fauna 

 No. 14, 1899, pp. 63 to 71. The original records of the rep- 

 tiles of the islands of the Gulf of California are either given 

 or referred to in a paper on the herpetology of Lower Califor- 

 nia, published in the Proceedings of the California Academy 

 of Sciences, Second Series, Vol. V, pp. 77 to 162. 



In this paper the reptilian fauna of thirty-five islands is con- 

 sidered, and some sixty-six species and subspecies are men- 

 tioned. The island distribution of these is shown in the fol- 

 lowing table: 



