CHECK LIST N. AMER. AMPH. KEPT. 49 



Dipso-saurus dorsalis Hallowell 



Proc. Ac. Nat. Sci. Phila., Vol. 7, 1854, p. 92. 

 Dipsosaurus dorsalis Cope 



Ann. Rep. U. S. Nat. Mus., 1898 (1900), p. 243, fig. 18. 



TYPE locality: Colorado Desert, California. 



range: Colorado and Mojave Deserts, east to the Colorado River. 



Dipso-saurus dorsalis lucasensis Van Denburgh 

 Dipsosaurus dorsalis lucasensis Van Denbukgh 



Proc. Calif. Ac. Sci., Ser. 4, Vol. 10, Aug. 6, 1920, p. 33. 



TYPE locality: San Jose del Cabo, Lower California. 

 range: Cape region of Lower California. 



Crotaphytus (GENUS) 



HoLBROOK, N. Amer. Herp., Ed. 2, Vol. 2, 1842, p. 79 

 type: collaris 



Crotaphytus collaris collaris (Say) 

 COLLARED LIZARD, MOUNTAIN BOOMER 



Agama collaris Say 



Long's Exp. Rocky Mts., Vol. 2, 1823, p. 252. 

 Crotaphytus collaris Holbrook 



N. Amer. Herp., Ed. 2, Vol. 2, 1842, p. 79, pi. 10. 

 Crotaphytus collaris (part) Cope 



Ann. Rep. U. S. Nat. Mus., 1898 (1900), p. 248. 



TYPE locality: Verdigris River near its union with the Arkan- 

 sas River, Oklahoma. 



range: Missouri, Kansas and Arkansas south to middle-western 

 and northwestern Texas and west to eastern New Mexico. 



Crotaphytus collaris baileyi (Stejneger) 



Crotaphytus baileyi Stejneger 



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

 Crotaphytus collaris baileyi Stone 



Proc. Ac. Nat. Sci. Phila., 1903, p. 30. 

 Crotaphytus collaris (part) Cope 



Ann. Rep. U. S. Nat. Mus., 1898 (1900), p. 250, fig. 19. 



type locality: Painted Desert, Arizona. 



range: Southwestern Texas, southern and western New Mexico, 

 Arizona, Utah, Nevada, Idaho, southeastern California, north- 

 ern Mexico, and Lower California. 



