UNIVERSITY OF CALIFORNIA PUBLICATIONS 



IN 



ZOOLOGY 



Vol. 12, No. 3, pp. 31-50 November 20, 1913 



THE REPTILES OF THE SAN JACINTO AREA 

 OF SOUTHERN CALIFORNIA 



BY 



SARAH ROGERS ATSATT 



INTRODUCTION 



During the summer of 1908 a collection of reptiles of the San 

 Jacinto area was made by two parties sent out from the Museum of 

 Vertebrate Zoology of the University of California. The material 

 thus obtained, together with the field records of Messrs. Grinned, 

 Swarth, Taylor, Richardson, and Camp, has constituted the major por- 

 tion of the basis of this report. Several specimens collected by Mr. 

 Bridwell in July, 1912, are also in the Museum collection. In July, 

 1912, the writer spent two weeks collecting in the San Gorgonio Pass 

 and on the Pacific side of the mountain as far south as Strawberry 

 Valley. The fresh material obtained then has been of use in deter- 

 mining coloration, inasmuch as the material of 1908, preserved in both 

 alcohol and formalin, is discolored in some cases. 



A full account of the localities is given in a report on the 

 birds and mammals of the San Jacinto area in a preceding 

 paper (Grinned and Swarth, 1913). In brief the regions in which 

 collecting was carried on are as follows: Whitewater, Snow Creek, 

 Cabezon and Banning are in the San Gorgonio Pass, which extends 

 nearly east and west from the desert toward the coastal valley, from 

 Lower Sonoran to dilute Upper Sonoran at Banning. Directly south 

 of Cabezon the "Hall Grade" ascends the ridge to Hurley Flat in 

 the Upper Sonoran zone ; above Banning is Poppet Flat, also Upper 

 Sonoran. Higher on the mountain at about 5000 feet is Schain's 

 Ranch on the border line between Upper Sonoran and Transition. 



J913 



