246 3. IGUANID& 



species have been collected in Esmeralda (Goldfield), Nye 

 (Ash Meadows, Rhyolite, Round Mountain, Tonopah, Pah- 

 rump Valley), and Lincoln (Caliente, Las Vegas, Virgin 

 River, Vegas Valley, Pahranagat Valley and Charleston 

 Mountains at Mountain Springs) counties. 



Utah specimens from Washington County (St. George) 

 may perhaps belong here, or these and some of those from 

 southern Nevada may be closer to U. s. stansbunana. 



In Arizona, Utas of this species (subspecies?) have been 

 taken in Mohave (Mohave Desert, Topock, Kingman, 

 Hackberry, Mellen, Colorado River above Bill Williams 

 Fork), Coconino (Grand Canyon of Colorado, Painted Des- 

 ert near Little Colorado River, Williams), Yavapai (Fort 

 Verde, Beaver Creek), Yuma (Yuma, Dome, Papago Wells, 

 Tina j as Altas, Gila City, Vicksburg, Parker, Gila River 

 near Adonde), Maricopa (Phoenix, Tempe, Cave Creek, 

 Agua Caliente, Sentinale), Apache (Chin Lee), Pima (Ajo, 

 Tucson, Fort Lowell, Catalina Mountains), and Santa Cruz 

 (Camp Crittenden, Sonoyta), counties, and at Warsaw 

 Mill, Tappan Spring, Soap Creek, Big Sandy River, Har- 

 quahala Mountains, and Cave Spring. 



In Lower California, this subspecies occurs the whole 

 length of the peninsula and on some of the islands, while 

 the extreme northwestern portion and Los Coronados Is- 

 lands are occupied by Uta s. hes^eris, and some of the other 

 islands have peculiar but closely related species. Specimens 

 from the northern portion of the peninsula, which probably 

 should be referred to Uta stansbunana elegans y have been 

 collected at Hanson's Lagoon, San Antonio, El Alamo, San 

 Salado Canyon, Trinidad, San Matias, Canon 'Esperanza, 

 Agua de las Fresas, San Felipe, San Luis Gonzales Bay, 

 Santa Rosa, Parral, Matomi, San Fernando, San Telmo, 

 San Rafael Valley, Villaderes, San Tomas to Guadalupe, 

 Guadalupe to Colnett, San Pedro Martir Mountains, and 



