CHECK LIST N. AMER. AMPH. REPT. 51 



Sauromalus (GENUS) 



DuMERiL, Arch. Mus. Hist. Nat. Paris, Vol. 8, 1856, p. 535 

 type: ater 



Sauromalus ater Dumeril 



CHUCK-WALLA 



Sauromalus ater Dumeril 



Arch. Mus. Hist. Nat. Paris, Vol. 8, 1856, p. 536, pi. 23, fig. 3. 



TYPE locality: Unknown. 



range: Southern Lower California and Espiritu Santo Island. 



Sauromalus hispidus Stejneger 



Sauromalus hispidus Stejneger 



Proc. U. S. Nat. Mus., Vol. 14, Oct. 27, 1891, p. 409. 

 Sauromalus hispidus Cope 



Ann. Rep. U. S. Nat. Mus., 1898 (1900), p. 264, fig. 22. 



TYPE locality: Angel de la Guarda Island, Gulf of California. 

 range: Same as type locality. 



Sauromalus obesus (Baird) 



Euphryne obesus Baird 



Proc. Ac. Nat. Sci. Phila., 1858, p. 253. 

 Sauromalus obesus Schmidt 



Bull. Amer. Mus. Nat. Hist., Vol. 46, Dec. 7, 1922, p. 641. 

 Sauromalus ater Cope 



Ann. Rep. U. S. Nat. Mus., 1898 (1900), p. 266, fig. 23. 



TYPE locality: Fort Yuma, Arizona. 



range: Southern Nevada, southwestern Utah, Arizona, southern 

 California, and northern Lower California. 



Sauromalus slevini Van Denburgh 



Sauromalus slevini Van Denburgh 



Occ. Papers Calif. Ac. Sci., Vol. 10, Nov. 23, 1922, p. 97. 



TYPE locality: Monserrate Island, Gulf of California. 

 range: Monserrate, Carmen, and Coronado Islands, Lower Cali- 

 fornia. 



Sauromalus townsendi Dickerson 



Sauromalus townsendi Dickerson 



Bull. Amer. Mus. Nat. Hist., Vol. 41, Oct. 2, 1919, p. 464. 



TYPE locality: Tiburon Island, Gulf of California. 

 range: Tiburon Island and possibly adjacent coast region of 

 Sonora, Mexico. 



