8 Field Columbian Museum 



Crotaphytus baileyi Stejneger. Bailey's Lizard. 



"This lizard is very common on rocky ground in southeastern 

 California and south into Lower California to the foothills near San 

 Felipe Bay. It was also observed in Lower California at Trinidad and 

 Canon Esperanza. In the Panamint Mountains it was common 

 ever}'where in rocky ground from 2,000 to 8,000 feet, although on 

 the east slope it was not observed below 4,000 feet. In the Inyo 

 Mountains this species was occasionally seen from the base to over 

 8,000 feet. Those at 8,000 feet were more grayish and smaller than 

 the ones living at lower elevations." 



In all of the specimens taken there are two rows of scales between 

 the supraorbitals. This species varies much in color. Some are 

 profusely spotted with white, others have very few spots. The 

 young usually have prominent white bars across the back, while in 

 adults from the same locality these bars are quite indistinct. Owing 

 to the constancy of the two rows of scales between the supraorbitals, 

 I follow Dr. Stejneger in using the name proposed by him for this 

 lizard. 



Specimens were secured at the following localities: Beveridge 

 Canon, Coso Valley, Shepherd Canon, Emigrant Canon, Wild Rose 

 Springs, and Hannopee Canon, California; San Felipe and San 

 Salado, Lower California. In the collections of the Museum are 

 specimens from Winslow and Tombstone, Arizona, and Grand Junc- 

 tion, Colorado. These, with one exception (one from Winslow, 

 Arizona), have the two rows of scales between the supraocular. In 

 the exception there is but one scale, which extends across this space. 

 This is probably the accidental fusing of two scales. 



Crotaphytus wislizenii Baird & Girard. Leopard Lizard. 



"This species is more active and wary than the preceding, with 

 which it is usually associated, though much less abundant. It was 

 not observed at a higher altitude than 7,000 feet. One individual 

 was seen in Lock wood Valley at 5,000 feet, and one in Cuddy Canon 

 lower down. These places are near Ft. Tejon." Two specimens were 

 taken at Owens Lake, California. 



In the young the Hght bars on the back arc more prominent, and 

 at this stage they much resemble the following sj)ecies. In life the 

 lighter colors are red or are deeply tinged with that color. 



"The food of this species consists largely of smaller lizards, chiefly 

 species <}( Uta and Cnemidophorus." 



Si»ccimens were secured at the following places: Coso Valley, 

 Kmigrant Carton, Furnace Creek, Wild Rose Springs, Coal Kilns, 



