104 U.S. NATIONAL MUSEUM BULLETIN 220 



Crotaphytus baileyi Stejneger 



North Amer. Fauna, No. 3, p. 103, pi. 12, fig. 1, 1890. 



=Crotaphytus collaris baileyi Stejneger 



Holotype: 15821, Painted Desert, Little Colorado River, Arizona, C. H. 

 Merriam and V. Bailey, Sept. 26, 1889. 



Paratypes (6) : 15822-7, Painted Desert, Little Colorado River, Arizona, 

 C. H. Merriam and V. Bailey, Sept. 21-26, 1889. 



Crotaphytus copei Yarrow 



Proc. U.S. Nat. Mus., vol. 5, p. 441, 1882. 

 =Gambelia wislizenii wislizenii (Baird and Girard) 

 Holotype: 12663, La Paz, Baja California, Mexico, L. Belding, 1882. 



Crotaphytus dickersonae Schmidt ' . ' r; ' . vr 



Bull. Amer. Mus. Nat. Hist., vol. 46, p. 638, fig. 2, 1922. 

 Holotype: 64451, $ , Tiburon Island, Gulf of California, Sonora, Mexico, 

 C. H. Townsend, Apr. 12, 1911. 



Crotaphytus dorsalis Baird and Girard .i - - : 



Proc. Acad. Nat. Sci. Philadelphia, vol. 6, p. 126, 1852. 



=Dipsosaurus dorsalis (Baird and Girard) 



Holotype: 2699, Colorado Desert, California (restricted to Winterhaven, 

 Imperial County) , J. L. LeConte. 



Crotaphytus fasciatus Hallowell 



Proc. Acad. Nat. Sci. Philadelphia, vol. 6, p. 207, 1852. 



=Gambelia wislizenii wislizenii (Baird and Girard) 



Holotype: 2736, Jornada del Muerte, Dona Ana County, New Mexico, 

 S. W. Woodhouse. 



Crotaphytus gambelii Baird and Girard 



Proc. Acad. Nat. Sci. Philadelphia, vol. 6, p. 126, 1852. 

 =Gambelia ivislizenii ivislizenii (Baird and Girard) 

 Holotype : 2722, California, W. Gambel. 



Crotaphytus reticulatus Baird 



Proc. Acad. Nat. Sci. Philadelphia, vol. 10, p. 253, 1858. 

 CoTYPES (4): 2692 (3), Ringgold Barracks, Montague County, Texas, 

 J. H. Clark. 2731, below Laredo, Webb County, Texas, A. Schott. 



Crotaphytus silus Stejneger 



North Amer. Fauna, No. 3, p. 105, 1890. 

 =Gambelia wislizenii silus (Stejneger) 



Holotype: 11790A, Fresno, Fresno County, California, G. Eisen. 

 Paratypes (8) : 104578-85, same data. 



