REPTILES FROM SOUTHEASTERN ARIZONA. 339 



Crotaphytus baileyi Stejneger. 



Three specimens have all the characters of this lizard 

 as distinguished from Crotaphytus cbllaris (Say) . While 

 the differences between the two forms are not, perhaps, 

 very great, they nevertheless are quite constant and seem 

 to be well worthy of recognition. 



One of these specimens is without data. The others 

 were collected at Bisbee, Cochise County, and at an alti- 

 tude of 7500 feet in Morse's Canon, near Fairbank, March 

 9, 1894. 



Crotaphytus wislizenii Baird & Girard. 



The Leopard Lizard is represented in the collection by 

 a single specimen labeled merely Arizona. It is quite 

 typical of this species, having none of the characters, 

 either of structure or coloration, of Dr. Stejneger's C. 

 silus from the San Joaquin Valley of California. 



Callisaurus ventralis (Hallowell). 



Eight specimens of this curious lizard were collected 

 near Fort Lowell, April u, April 26, and May 5, 1894. 

 They all have large labials and bear no resemblance to 

 Callisaurus draconoides of the San Lucas Fauna of Lower 

 California. 



Holbrookia texana (Troschel). 



A half-grown Holbrookia (No. 2454) secured on a rocky 

 hillside near Fort Lowell, April 26, 1894, is the only ex- 

 ample of this species. 



Holbrookia maculata approximans (Baird). 



This Holbrookia is evidently quite common in south- 

 eastern Arizona. Mr. Price secured thirty -eight spec- 

 imens at Fort Lowell, at Fairbank, and in Rucker Canon 

 in the Chiricahua Mountains. Two specimens were taken 

 " from the gizzard of a sparrow-hawk " shot in Rucker 



