108 3. IGUANIDJE 



Distribution. This is a lizard of the desert regions, 

 but seems not to live upon the lower levels, preferring the 

 more mountainous portions between the altitudes of about 

 2000 to 8000 feet. In such situations it often is found 

 on the tops of boulders, but also occurs in sandy spots. 

 Its range extends from western Texas to eastern California, 

 and from Idaho to northern Lower California and Sonora. 



In California, it has been collected in Inyo (White 

 Mountains, Inyo Mountains, Coso Valley, Argus Moun- 

 tains, Panamint Mountains, Death Valley, Lone Pine Creek, 

 Shoshone, Beveridge Canyon, Emigrant Canyon, Wild Rose 

 Springs, Hannopee Canyon), Kern (Kern River five miles 

 above Kernville), San Bernardino (Needles, Turtle Moun- 

 tains, 14 miles northeast from Blythe Junction, Providence 

 Mountains, Lytle Creek, Victorville, desert slope of the 

 San Bernardino Mountains at 5000 feet altitude between 

 Cactus Flat and Cushenbury Springs), Riverside (Palm 

 Canyon at 800 feet, Snow Creek at 1500 to 2000 feet, 

 Hall Grade at 2000 feet, San Jacinto Mountains near Ca- 

 bazon), and San Diego (Mountain Spring), counties. 



In Nevada, it has been taken in Lincoln (at Quartz 

 Spring in the Desert Mountains, Juniper Mountains, Cali- 

 ente), Nye (Oasis Valley, North Kingston Mountains, 

 Rhyolite, Tonopah), Esmeralda (Palmetto Mountains), 

 Lyon (Mason at 4,500 feet altitude), Eureka (Cortez 

 Mountains at the Humboldt River), Washoe (between 

 Reno and Pyramid Lake, Truckee River, Derby, Pyramid 

 Lake Indian Agency), and Humboldt (Red Hills Quinn 

 River Crossing, Thousand Creek Basin, Limestones and 

 Big Creek Ranch, Pine Forest Mountains), counties.^ 



In Oregon, it has been found at Vale, Malheur County. 



In Idaho, it has been secured at the mouth of the 

 Bruneau River. 



In Utah, it occurs in Washington (Diamond Valley 1 



