CROCODILIANS, LIZARDS, AND SNAKES. 



413 



PHRYNOSOMA DOUGLASSII HERNANDESI Girard. 



Phrynosoma hernandesi Stejnegkr, N. Amcr. Fauna, No. 3, 1890, p. 112. 



Tapaya hernandesi GiR.\Ri), U.S. Expl. Expel. (Ch. Wilkes), Herpt., 18.58, p. 395; 



U.S. and Mex. Bouud. Surv., 1859, p. 8. — Bocourt, Miss. Sci. Mex., Kept., 



1874, p. 228. 

 Tapaya hvevirostriH Girard, U. S. Expl. Expd. (Ch. Wilkes), Herpt., 1858, p. 



397.— Bocourt, Miss. Sci. Mex., Rept., 1871, p. 229. 

 I'hrynoHoma brevlroslre Cope, Proc. Acad. Nat. Sci. I'bila., 1860, p. 302. — Boui.kn- 



GER, Cat. Liz. Brit. Mus., 11, 1885, p. 240. 



Head broader tliaii long, with the spiues very small; nostril pierced 

 in thelineof thecauthusrostralis; tympanum naked; the head spines, 



Fig. 70. 



I'lIRYNOSOMA DOUGLASSII HERNANDESI UlRAKD. 

 X§. 



Arizona. 



ChI. No. 1186S, U.S.N. M. 



which are subequal, not, or bnt slightly, larger than the largest spinose 

 scales on the body, and turned ui)ward; they number on each side, one 

 postorbital, one occipital, and three temporals ; in very young specimens 

 tlie spines are not distinguishable; lower labials terminating in a series 

 of four or live large, compressed, obtuse, or pointed scales; a series of 

 enlarged scales, as large or a little larger than, and parallel to, the lower 

 labials; gular scales equal, smooth; gular fold strong; a dermal thick- 

 ening, bearing a few small, erect spines, on each side, between the gular 

 fold and the tympanum. Back and limbs with scattered, large, erect, 

 keeled, spinose scales, which are longer than broad ; a regular lateral 



