12. SCELOPORUS 277 



while those from Paisley and Summer Lake, in the same 

 county, have much smaller scales and are referred to S. g. 

 gracilis, as are those from Tule Lake, California. 



Some specimens of S. g. graciosus from Utah are ap- 

 parently identical in dorsal coloration with some well-striped 

 Arizonan specimens of S. consobrinus. These two species, 

 however, may be distinguished readily by the coloration of 

 the chin and throat. This region in S. graciosus is mottled 

 and diffusely washed with blue, without two discrete blue 

 lateral spots. S. consobrinus lacks the blue suffusion and 

 sublabial mottling, but usually has a small blue blotch on 

 each side of the gular region. S. consobrinus is a slightly 

 larger species, and its dorsal scales usually are larger and 

 fewer. 



Distribution. Sceloporus graciosus graciosus in most 

 typical form occurs in Utah. Thence, it ranges south to 

 northeastern Arizona, east to Colorado, north to Wyoming, 

 Idaho and Montana, and west, in less typical form, into Ne- 

 vada and eastern Oregon. 



Utah records are from the type locality, Great Salt Lake, 

 and Salt Lake (Fort Douglas), Wasatch (Wasatch Moun- 

 tains), Utah (Provo, Fairfield), Grand (Thompson), Mil- 

 lard (Dome Canyon, Meadows), Beaver (Beaver, Milford, 

 Indian Creek Canyon Tushar Mountains), Iron (Buckhorn, 

 Rush Lake), and Washington (Zion National Park), coun- 

 ties. It is probable that records of S. consobrinus from Bea- 

 ver and San Francisco Mountains, Beaver County (Cope 

 and Yarrow) also are based upon specimens of this sub- 

 species or of S. elongatus. 



From northern Arizona, it has been recorded by Cope 

 and Coues from Navajo Springs near the eastern border of 

 the state, and from the Little Colorado River. Dr. Stej- 



