302 PROCEEDINGS OF THE ACADEMY OF 



REPTILIA. 



Sauria. 



Iguania. 



Phiynosoma douglassii Bell. Tapaya ornatissima Girard, Herp. U. S. 

 Expl. Ex. 1858, 396. 

 Abundant, and exhibiting much variety of coloration, some being uniform 

 brown above, some with dark cross-bars, light edged behind, some with d;irk 

 oval spots, and some with dark yellow-edged spots; others have the tempo- 

 ral spines and sides of the head bright red. The length of the tail varies 

 from one and three-fourths to two and three fifths times in the total. 

 From Fort Whipple, San Francisco Mountains, and the Colorado Chiquito 

 River. The two from the last locality are the only ones with oval brown 

 yellow -edged spots. Dr. Coues says of this species: "Very abundant at all 

 points from Santa Fe to Fort Whipple, chiefly in dry and sandy or rocky 

 situations. The males are usually smaller and more delicate in form than 

 the females. Those of the latter sex taken after the middle of July were al- 

 most invariably pregnant, and the young appeared in great numbers after the 

 first of August. When on sand or soft soil, the horned frogs watch their 

 chance, and when they think nobody is looking, they quickly and quietly 

 bury themselves quite out of sight. This is accomplished by a gradual, in- 

 sinuating, lateral and forward wriggling of their bodies: nose down, and 

 paws drawn to their sides. vVhen newly caught, some of the larger speci- 

 mens are a little inclined to be irascible and pugnacious ; and they bite, but 

 rather weakly. If a dog approaches, they stretch up on their legs, swell out 

 their bodies, open their mouths, and make a low hissing noise. This is about 

 all they do, however. They always become tame and quiet after a few min- 

 utes' handling. They eat readily, snapping at passing flies, and catching 

 them by protruding their viscid, fleshy tongues. When tickled with a straw 

 they lean the whole body towards the side touched, humping up their backs, 

 and setting their horns ; but this is the utmost they do on the defensive, tor- 

 ment them as you may." 



Phrynosoma brevirostre Girard, Herp. U. S. Expl. Exped. 1858, 377. 



One specimen from Bero Springs (No. 407). This species is very near the 

 P. douglassii, but has the muzzle and nostrils of the P. cornutum 

 type, that is, the latter on the front of the muzzle ; the tail is also very short, 

 being a little over one-third length of head and body ; above with a few 

 pairs of pale-edged brown spots. I am not prepared to depend on its perma- 

 nent distinction from the P. douglassii. 



Phrynosoma p la ty rh i n u s Girard, Stansbury's Report, Utah, Reptiles, 

 263. 



Phrynosoma m o d e s t u m Girard, 1852, Herp. U. S. Expl. Exped. 1858, 365, 

 Tab. vi. Bero Spring. 

 Asa synonym of Ph. regale Girard, is to be placed Ph. Solaris Gray, 

 Catal. Sauria Brit. Mus., 229. Ph. b 1 a i n v i 1 1 e i Gray, 1. c. 228, is the com- 

 mon species of California which has been called Ph. coronatum by Gi- 

 rard. The latter species, of Blainville, has been sent by John Xantus to 

 the Smithsonian Institution from Lower California, where alone it has been 

 found. 



Crotaphytus collaris J&y, Holbrook, N. Amer. Herp. ii. 1842, 72, tab. 



From Bero Springs and along the Colorado Chiquito River, where they are 

 abundant. Dr. Coues says of its habits: "Occurring on sand, logs, among 

 brush, etc. Throat very dilatable, os hyoides large and strong. Length 11 

 12 inches. Bites fiercely, and a little powerfully when caught. Common 

 all along the Colorado Chiquito River. 



[Oct. 



