CHECKLIST OF REPTILES OF MEXICO 155 



XANTUSIA HENSHAWI Stejneger 



Xantusia henshawi Stejneger, Proc. U. S. Nat. Mus., vol. 16, 1893, p. 467. — 

 Van Denburgh, Occ. Pap. California Acad. Sci., No. 10, 1922, pp. 484-486, 

 pi. 50.— Smith, Handbook of lizards, 1946, pp. 325-327, pi. 88. 



Xantusia pida Cope, Amer. Nat., vol. 29, 1895, pp. 859, 939 (Tejon Pass, Calif.; 

 probably Poway, San Diego County, Calif., fide Van Denburgh) . 



Type.—V.S.^M. No. 20339; H. W. Henshaw collector. 



Type locality. — Witch Creek, San Diego County, Calif., elevation 

 2,700 feet. 



Range. — Extreme southwestern California and northern Baja Calif- 

 fornia, in the San Pedro Martir Mountains. 



XANTUSIA GrLBERTI Van Denburgh 



Xantusia gilherii Van Denburgh, Proc. California Acad. Sci., vol. 5, 1895, p. 121, 

 pi. 11; Occ. Pap. California Acad. Sci., No 10, 1922, pp. 482-484. 



Type. — California Acad. Sci. No. 401; Gustav Eisen collector. 

 Type locality. — San Francisquito, Sierra Laguna, Baja California. 

 Range. — Cape region of southern Baja California. 



Family SCINCIDAE Gray 



Scincidae Gray, Ann. Philos., ser. 2, vol. 10, 1825, p. 201, 



Genera. — About 60, of which three occur in Mexico. Of these three, 

 none are confined to the Western Hemisphere. Only two other genera 

 occur in the Americas: Cryptoblepharus (South America), a wanderer 

 from the Pacific Islands, and Neoseps (Florida) . 



Range. — Southern Canada south through Central America and 

 South America to Argentina; West Indies; Africa and Madagascar; 

 south Asia; China; Japan; Philippine Islands; Dutch Indies; Pacific 

 Islands and Australia. 



KEY TO MEXICAN GENERA OF SCINCIDAE 



1. Two supranasals between rostral and frontonasal; frontoparietal always di- 



vided; lower eyelid with a translucent disk or not; palatine bones in contact 

 or not 2 



Supranasals absent, the single frontonasal in contact with rostral; frontoparietal 

 divided or not; an undivided translucent disk on lower eyelid; palatine bones 

 in contact on median line Scincella (p. 156) 



2. An undivided translucent disk on lower eyelid; palatine bones in contact on 



DQedian line Mabuya (p. 155) 



Lower eyelid without a translucent disk, or if so it is divided into several parts; 

 palatine bones separated on median line Eumeces (p. 160) 



Genus MABUYA Fitzinger 



Mabuya Fitzinger, Neue Classification der Reptilien, 1826, pp. 23, 52. 



Genotype. — Lacertus mabouya Lacepede (by absolute tautonymy, 

 Jide M. A. Smith, Fauna British India, etc., 1935, Reptilia and Am- 



861316—50 11 



