222 PROCEEDINGS OP THE ACADEMY OF [March, 



ON SOME COLLECTIONS OF EEPTILES AND BATRACHIANS FROM THE 



WESTERN UNITED STATES. 



BY WITMER STONE. 



Members of the Academy museum staff have taken part in several 

 expeditions to various parts of the western United States during the 

 last few years, more especially for the collecting of insects and mol- 

 lusks, but in nearly every instance a certain number of reptiles and 

 batrachians were procured. While no serious efforts were made to 

 obtain complete collections at any one point, nevertheless a number of 

 interesting specimens were taken, including one species of snake, 

 Elaphe chlorosoma, new to our fauna. The exact localities accompany- 

 ing the specimens will be of value in tracing the distribution of the 

 various species, and the writer, w r ho has had the privilege of studying 

 the several collections, presents the following list mainly with that 

 object in view. The several collections are as follows: 



Fifty-five specimens obtained by Dr. Henry Skinner in Carr Canon, 

 Huachuca Mountains, Arizona, in August, 1905. 



Thirty-six specimens obtained by Dr. Henry A. Pilsbry and Mr. 

 J. H. Ferriss, of Joliet, 111., who accompanied him, in various parts of 

 Arizona, September to November, 1907, and sixty-five obtained in 

 Arizona and New Mexico, August to October, 1910. 



Three collections presented by Mr. Morgan Hebard, who, accom- 

 panied by Mr. J. A. G. Rehn, of the Academy staff, made trips to the 

 West in 1907, 1909 and 1910. 



The 1907 collection comprised thirty-seven specimens from Arizona, 

 New Mexico and Texas. 



The 1909 collection, fifty-nine specimens from Nebraska, Montana, 

 Wyoming, Oregon, California, Nevada, Utah and Colorado. 



The 1910 collection, eighty-one specimens from Wyoming, Idaho, 

 Oregon, California, Arizona, New Mexico and Nevada. 



The number given opposite each specimen is that of the Academy's 

 Herpetological Catalogue, and is attached to each individual. 



The writer begs to acknowledge his indebtedness to Dr. L. Stejneger, 

 of the United States National Museum, who kindly examined several 

 specimens of which the identity was in doubt. 



