50 CALIFORNIA ACADEMY OF SCIENCES TProc. 4th Ser. 



made by M. Diguet, and the publication by Meek 2 of a list of 

 those secured by Edmund Heller, a number of species have 

 been added to those known from the peninsula. It therefore 

 seems worth while to publish a new list including all that are 

 known to occur on the peninsula. The island reptiles are not 

 included here. They have been recorded in another paper 3 

 published by us, and in one by Miss Mary C. Dickerson 4 . 



In the following list a star preceding the number indicates 

 that no Lower Californian specimens of that species are at 

 present in the collection of the Academy. The letters N., C, 

 and S., following the names, indicate in a general way the 

 portions of the peninsula inhabited by each species ; N. mean- 

 ing northern and including the San Diegan and Desert areas ; 

 C. the central portion of the peninsula; and S. the southern 

 or Cape Region. A few species are included in the list without 

 numbers but enclosed in brackets. These have not yet actu- 

 ally been collected in Lower California, but have been taken 

 in California so close to the line as to make it practically cer- 

 tain that they occur in the Mexican territory. 



LIST OF THE AMPHIBIANS AND REPTILES OF 

 LOWER CALIFORNIA, MEXICO 



*1. Batrachoseps attenuatus. N. S. 

 *2. Plethodon croceater. N. S? 



[Aneides lugubris lugubris]. N. 



3. Scaphiopus couchii. S. 



4. Bufo boreas halophilus. N. 



5. Bufo punctatus. S. 



6. Hyla regilla. N. S. 



7. Hyla arenicola. N. 

 *8. Rana draytonii. N. 



9. Phyllodactylus tuberculosus. C. S. 



10. Phyllodactylus unctus. S. 



*11. Coleonyx variegatus. N. C. 



12. Ctenosaura hemilopha. S. 



13. Dipsosaurus dorsalis dorsalis. N. C. 



8 Meek, Field Columbian Mus., Zool. Series, Vol. VII, No. 1, 1906, pp. 3-19, pis. 

 Mil. 



s Van Denburgh & Slevin, Proc. Cal. Acad. Sci., Ser. 4, Vol. IV, 1914, pp. 129-152. 

 * Dickerson, Bull. Amer. Mus. Nat. Hist., Vol. XLI, 1919, pp. 461-477. 

 *Species which the Academy has not yet received from Lower California. 



