49 



Sceloporus undulatus, Harhm, subspecies thaycrii, Baird and Girard,Proc. 

 Acad. Phila., 1852, p. 127. California, Utah, New Mexico, and Eio 

 Grande Valley. 



Sceloporus co7isobrinus, Baird and Girard ; Marcy's Eeport lied Eiver, 

 1853, p. 237. Sonoran and Central regions ; Oregon and Texas. 



Sceloporus scalaris, Wiegmann, Herpetologia Mexicana, 1834, p. 52. So- 

 nora. 



Sceloporus Jloridanus, Baird, Proc. Acad. Phila., 1858, p. 254. Florida. 



Sceloporus spinosus, Wiegmann, Herpetologia Mexicana, p. 50. Texas. 



Sceloporus clarJcii, Baird and Girard, subspecies clarMi, Baird and Girard, 

 Proc. Acad. Phila., 1852, p. 127. Sonoran and Southern Pacific 

 regions. 



Sceloporus clarMi, Baird and Girard, subspecies zosteromus, Cope, Proc. 

 Acad. Phila., 1863, p. 105. Lower California. 



Phrynosoma, Wiegmann. 



Phrynosoma modestum, Girard, Stansbury's Eept. Salt Lake, p. 365. So- 

 noran region. 



Phrynosoma platyrMnum, Girard, Stansbury's Kept Salt Lake, p. 361. 

 Utah and Nevada. 



Phrynosoma maccallii, Hallowell ; Baird, U. S. Mex. Bound. Surv., p. 9. 

 Desert of Gila and Colorado. 



Phrynosoma regale, Girard, U. S. Mex. Bound. Surv., p. 9. Desert of 

 Gila and Colorado. 



Phrynosoma planiceps, Hallowell, Proc. Acad. Phila., 1852, p. 178. South- 

 ern Sonoran region. 



Phrynosoma cornutum, Harlan ; Girard, Stansbury's Kept. Salt Lake, p. 

 360. Texas. 



Phrynosoma hernandezii, Girard, Herp. U. S. Expl. Exped., p. 395. New 

 Mexico ; Eio Grande Valley. 



Phrynosoma douglassii. Bell, subspecies ornatissimum, Girard, Herp. U. 

 S. Expl. Exped., 1858, p. 396. Sonoran region. 



Phrynosoma douglassii, Bell, subspecies douglassii. Bell ; Girard, Herp. 

 U. S. Expl. Exped., p. 398. Entire Central region; Oregon and 

 Washington. 



Phrynosoma blainvillei, Gray ; Girard, U. S. Expl. Exped. Herp., p. 400. 

 Pacific region. 

 4 H • 



