13. PHRYNOSOMA 433 



Narizo) and southeastern Arizona. Arizona records are 

 very few. I have seen specimens from Dos Cabezos, Bowie, 

 and Douglas, in Cochise County. Cope (1900) records 

 specimens from Camp Apache and Little Colorado River. 

 Dr. Stejneger informs me that the specimen from the Little 

 Colorado River (U. S. Nat. Mus. No. 4580) is a P. douglas- 

 s'li ornatissimum. The specimen from Camp Apache (U. S. 

 Nat. Mus. No. 8441), which Cope records as collected by 

 J. H. Rutter, in July, 1 874, is also referred to P. modestum 

 by Yarrow (1883) although he had previously (1875) 

 recorded what is evidently this specimen as P. cornutum. 

 Dr. Stejneger writes me that it is a P. modestum. 



Habits. — Ruthven, who observed this species in New 

 Mexico, states that the stomach contents of several speci- 

 mens consisted of ants, a few beetles and a small amount of 

 vegetable matter. He found that this species has the power 

 of changing color in a striking way. It was necessary to 

 shoot a specimen. "It was not seriously injured, but bled 

 quite freely, and when the bag in which it was placed be- 

 came stained with blood, the large black lateral spots, which 

 were previously very distinct, became a bright pink, and 

 remained so for four hours, only becoming black again when 

 the specimen was killed." 



Family 4. ANGUID^ 

 In the lizards of this family, the tongue is formed of a 

 larger, thick, posterior portion, and a smaller, thin, emar- 

 ginate, anterior part which is more or less retractile into a 

 fold of the posterior portion. The imbricate scales are 

 reinforced with bony plates. In some genera the limbs are 

 well-developed, but in others they are rudimentary or even 

 absent. The family is represented in western North Amer- 

 ica by a single genus. 



