CHECKLIST OF REPTILES OF MEXICO 151 



Range. — Known only from the region near the type locality. 

 Reported from Sonora: La Posa, 54 miles southwest of Hermosillo. 



UTA PALMERI Stejneger 



Uta palmeri Stejneger, North Amer. Fauna, No. 3, 1890, p. 106. — Van Den" 

 BTJRGH, Occ. Pap. California Acad. Sci., No. 10, 1922, pp. 221-223. 



Type.— U.S. 'NM. No. 16002; Edward Palmer collector. 

 Type locality. — San Pedro Martir Island, Sonora. 

 Range. — Known only from the type locality. 



UTA NOLASCENSIS Van Denburgh and Slevin 



Uta nolascensis Van Denburgh and Slevin, Proc. California Acad. Sci., ser. 

 4, vol. 11, 1921, pp. 395-396. — Van Denburgh, Occ. Pap. California Acad. 

 Sci., No. 10, 1922, pp. 223-225. 



Type. — California Acad. Sci. No. 50508; Joseph R. Slevin collector. 

 Type locality. — San Pedro Nolasco Island, Sonora. 

 Range. — Known only from the type locality. 



Family XANTUSIIDAE Baird 



Xantusiidae Baird, Proc. Acad. Nat. Sci. Philadelphia, 1858, p. 254. 



Genera. — Four genera Imown; the only extralimital genus is Cri~ 

 cosaura of Cuba. 



Range. — Southwestern United States to Panama; Cuba. 



KEY TO MEXICAN GENERA OF THE XANTUSIIDAE 



1. Supraoculars present, as small scales above eyes (medial to superciliaries) ; 



dorsal scales uniformly granular Xantusia (p. 154) 



Supraoculars absent, no small scales above eyes (except superciliaries) ; dorsal 

 scales heterogeneous in size 2 



2. Distinct, vertical rows of well-differentiated, enlarged, keeled scales on sides of 



body, separated from each other by granular area_-_Lepidophyina (p. 151) 

 No distinct, vertical rows of enlarged scales on sides of body.Gaigeia (p. 153) 



Genus LEPIDOPHYMA A. Dumeril 



Lepidophyma A. Dumeril, in Dumeril and Dumeril, Catalogue m^thodique de la 



collection des reptiles, 1851, pp. 137-138. 

 Poriodogaster Smith, in Gray, Proc, Zool. Soc. London, 1863, p. 154 (type, 



P. grayii Smith). 

 Akleistops Muller, Verh. Naturf. Ges. Basel, vol. 6, 1878, p. 390 (type, 



A. guatemalensis MiiUer), 



Genotype. — Lepidophyma flavimaculatus A. Dumeril. 

 Range. — From Hidalgo, Alexico, south to Costa Rica. 

 Species. — Two, with five forms, one of which {fiavimaculata obscu- 

 ra) is extralimital. 



