﻿426 3. 1GUANIDM 



it dodged with considerable alacrity. When it ran any 

 great distance it often raised its tail above the level of the 

 sand in a manner suggestive of the more agile Callisaurus. 



"Two individuals whose stomachs were opened had 

 eaten a mass of insects, chiefly ants and beetles, besides a 

 number of larvs which could not be identified." 



Taylor states that of three individuals taken July 3, in 

 northern Nevada, two were shedding their epidermis. 



85. Phrynosoma goodei Stejneger 

 Sonoran Horned Toad 



Phrynosoma hernandezi Streets, Bull. U. S. Nat. Mus., No. 7, 1877, p. 

 36. 



Phrynosoma goodei Stejneger, N. Amer. Fauna, No. 7, 1893, p. 191, 

 pi. II, figs. 3a-3c (type locality, Coast deserts of the state of 

 Sonora, Mexico); Ditmars, Reptile Book, 1907, p. 158. 



Anota goodei Cope, Report, U. S. Nat. Mus. for 1898, 1900, p. 442, fig. 80. 



Description. — Nostrils opening above the lines joining 

 superciliary ridges with end of snout. Head-spines of 

 moderate size or rather short; only three temporal horns on 

 each side, one occipital and one postorbital; the posterior 

 temporal horn nearly on a line with, and of the same size 

 as, the occipital horns. Upper head-shields rugose. Gular 

 region covered with small granular scales, nearly uniform 

 or with indications of one series of enlarged scales on each 

 side. Below lower labials, and separated from them by one 

 series of small scales, is a series of large plates of which 

 only the three posterior are spinous. Side of neck with two 

 short folds each with a group of spinous scales. Upper sur- 

 faces bearing scattered, slightly elevated, keeled, tubercular 

 scales, with smaller scales and granules between. A single 

 series of peripheral spines. Tail more than twice length of 

 head j with a lateral fringe of pointed scales. Lower sur- 

 faces covered with smooth scales, except on tibia and feet, 



