CHECKLIST OF REPTILES OF MEXICO 145 



Urosaurus ornatus graciosus, Mittleman, Bull. Mus. Comp. Zool., vol. 91, 1942, 

 pp. 144-145, pi. 7 (cotypes). 



Type.— Ac2i^. Nat. Sci. Philadelphia Nos. 8550-8551. 



Type locality. — "Lower California" [=southem California], here 

 restricted to Winterhaven (=Fort Yuma), Calif. 



Range. — Southern Nevada, western Arizona, southern California, 

 and northern Baja California. Reported from Baja California: 85 

 miles south of Mexicali, San Felipe. It may occur also m Sonora but 

 is not recorded from there. 



NIGRICAUDUS GROUP 



Species. — Four. 



Range. — Jalisco, Michoacan, and Baja California. 



UROSAURUS NIGRICAUDUS (Cope) 



Uia nigricauda Cope, Proc. Acad. Nat. Sci. Philadelphia, 1864, p. 17(3.^ — Van Den- 

 burgh, Occ. Pap. California Acad. Sci., No. 10, 1922, pp. 216-219. 



Urosaurus nigricaudus, Mittleman, Bull. Mus. Comp. Zool., vol. 91, 1942, pp. 

 157-159, pi. 10. 



Type. — U.S.N.M. No. 5307, 12 cotypes; John Xantus collector. 

 Type locality. — Cape San Lucas, Baja California. 

 Range. — Southern tip of Baja California, with adjacent coastal 

 islands, Espiritu Santo, Ballena, San Jose, and ?Magdalena. 



UROSAURUS MICROSCUTATUS (Van Denbnrgh) 



Uta microscutata Van Denburgh, Proc. California Acad. Sci., ser. 2, vol. 4, 1894, 

 p. 298; Occ. Pap. California Acad. Sci., No. 10, 1922, pp. 219-221. 



Urosaurus microscutatus, Mittleman, Bull. Mus. Comp. Zool., vol. 91, 1942, 

 pp. 159-163.— Smith, Handbook of lizards, 1946, pp. 262-264, pi. 64. 



Uta parviscutata Cope, Ann. Rep. U. S. Nat. Mus., 1898 (1900), pp. 324-325, 

 fig. 45 (substitute name for Uta microscutata Van Denburgh). 



T^/pe.— Stanford Univ. Mus. No. 1221; J. M. Stowell collector. 



Type locality. — San Pedro Martir Mountains, Baja California. 



Range. — Extreme southern California through all of Baja California 

 except the southern fifth. Reported from Baja California: Puerto 

 Escondido, San Xavier, San Quintin, San Pedro Martir, Mount San 

 Matias, and the Islands of San Francisco, San Jose, Danzante, Coro- 

 nado, Carmen, San Marcos, Santa Magdalena. 



UROSAURUS GADOVI (Schmidt) 



Uta gadovi Schmidt, Amer. Mus. Nov., No. 22, 1921, pp. 3-4. 

 Urosaurus gadovi, Mittleman, Bull. Mus. Comp. Zool., vol. 91, 1942, pp. 154-156, 

 pi. 11. 



Type. — Amer. Mus. Nat. Hist. No. 20355; Hans Gadow collector. 

 Type locality. — Cofradia, Jalisco, Mexico. 



Range. — Pacific slopes of Michoacan and Jalisco. Reported from 

 Michoacan: Apatzingan, Acahuato; Jalisco: Cofradia. 



