578 



ZOOLOGY BATEACHIANS AND EEPTILES. 



south as Arizona. Some of the specimens enumerated in the following list 

 assimilate closely to P. modestum, Girard, and are hardly distinguishable, 

 while a great variety of coloration exists. 



PHEYNOSOMA EEGALE, Girard. 



Phrynosoma regale, GIRARD, Herp. U. S. Exp. Exped., 1858, 406. BD., U. S. & Mex 

 Bound. Surv., pt. ii, Reptiles, 1859, 9, pi. xxviii, figs. 1-3. COPE, Check- 

 List N. A. Batrach. & Eept., 1875, 49. 



HAB. Deserts of Gila and Colorado. 



This large and magnificent species was first 'chronicled from the val- 

 leys of the Gila and Colorado Eivers, where it was taken by Mr. A. Schott; 

 it is by no means abundant. 



