412 



EEPORT OF NATIONAL MUSEUM, 1898. 



observable are : The rather shorter muzzle, which is entirely vertical in 

 profile; the smaller scales above the canthus of the mouth and tempo- 

 ral bones, the less prominence of the posterior superciliary angle, and 

 the nmch reduced size. 



On the elevated land which represents the Sierra Nevada Eange, 

 between Warners Lake and Goose Lake, in the basaltic region near 

 the former, I found a peculiar variety of this species. The horns arc 



Fig. 69. 



PHRYNOSOMA DOUGLASSII DOUQLASSIl BeLL. 



Xf. 



Fort Walla Walla, 



Cat. No. 101)18, U.S.N-.M. 



even more rudimentary than in the usual form, but are all represented. 

 The prominent scales of the back are smaller and less prominent. In 

 some of the specimens the head is sliorter relatively to the body. The 

 color is an iron-rust brown, with darker lateral spots, each with a small 

 posterior yellow border. Individuals are abundant; some of those taken 

 are full of eggs. All are much smaller than P. doufjlassii hernandc.si. 

 This form is confined to the northern part of the Pacific district. 



Phrynosoma donglassii doriolassil Hell. 



