6. CROTAPHYTUS 109 



miles northwest from St. George, Toquerville, Springdale, 

 Rockville, Black Ridge at 4,500 feet, Bellevue Ridge at 

 4,500 feet, Echo Farm at 3,500 feet. Lower Kolob Moun- 

 tains at 7,000 feet. Virgin City at 4,000 feet), Sanpete 

 (Riverview), Iron (Rush Lake), Beaver (Newhouse, 

 Beaver Creek Hills at 5,500 feet), Millard (seven miles 

 south from Kanosh, Dome Canyon), and Grand (Thomp- 

 son), counties, and in Carson's Pass. 



In Arizona, this lizard has been collected in Mohave 

 (Camp Mohave), Coconino (Bright Angle Trail, Grand 

 Canyon of the Colorado, Painted Desert, Little Colorado 

 River, near Cameron, Cedar Ranch Colorado Canyon, Lee's 

 Ferry, Oak Creek), Navajo (St. Joseph, Winslow, Camp 

 Apache), Apache (Fort Defiance, Chin Lee), Yavapai (Fort 

 Whipple, Prescott, Fort Verde, Seligman, Oak Creek), 

 Maricopa (Agua Caliente, Montezuma), Gila (Sierra 

 Ancha, Rice), Pinal (Oracle), Pima (Tucson, Catalina 

 Mountains), Graham (Bonito Canyon), Santa Cruz 

 (Patagonia, Nogales), and Cochise (Cave Creek, Chirica- 

 hua Mountains, Fort Bowie, Tombstone, at 7,500 feet in 

 Morse's Canyon near Fairbank, Bisbee, Fort Huachuca, 

 Huachuca Mountains on the flat between Ramsey and Ash 

 canyons and in Montezuma Canyon), counties. 



In Sonora, it has been taken at Hermosillo and Sierra 

 Tule, and on Tiburon Island in the Gulf of California. 



In Lower California, it has been reported from San 

 Salada, Trinidad, Caiion Esperanza, and the foothills near 

 San Felipe Bay, and it is probable that the whole north- 

 eastern portion of the peninsula is included in its range. 



In the western portions of its range this lizard usually 

 is found on rocks or boulders in the hills. In New Mexico 

 nnd western Texas it seems to descend to lower levels and 

 often is found on the plains, as is the eastern subspecies 



