Distribution. This species ranges north from Mexico 

 into southeastern Arizona where it has been taken in Cochise 

 (Chiricahua Mountains at Cave Creek Canyon and Paradise, 

 Camp Rucker, Cochise Stronghold in the Dragoon Moun- 

 tains, at 7,500 feet in Morse's Canyon near Fairbank, Fort 

 Huachuca, Huachuca Mountains in Carr, Ramsey, Monte- 

 zuma, Ash, and Miller canyons, and up to the summit of 

 Miller Peak), Santa Cruz (Santa Rita Mountains in Agua 

 Caliente Canyon, Josephine Canyon, Gardner Canyon, and 

 up to the summit of Old Baldy, Nogales), and Pima (Santa 

 Rita Mountains in Sawmill and Madera canyons), and per- 

 haps Navajo (Camp Apache), counties. 



In Sonora, it has been collected at Pinetos Camp thirty- 

 two miles south of Nogales. 



Habits. This lizard is a mountain species and ranges 

 from about 5,000 to 10,000 feet altitude. It is found on 

 rocks in the oak and conifer belts. It is very common in the 

 Huachuca Mountains ; less so in the Chiricahuas. Little is 

 known of its habits. 



Dr. Stejneger describes a curious change in color which 

 he observed in lizards of this species found "among exposed 

 rocks at various places between 5,700 feet to 6,700 feet 

 altitude during the first days of November, 1889. The 

 nights were very cool and the lizards did not come out from 



