156 BULLETIN 199, UNITED STATES NATIONAL MUSEUM 



phibia, vol. 2, p. 257). This is contrary to opinion 92 of the Inter- 

 national Commission on Zoological Nomenclature, which states that 

 Scincus sloanii of Daudin is the type. Fitzinger did not list that form.^^ 



Range. — Southern Mexico on both coasts; Central America, South 

 America; Africa, Madagascar; southern Asia, Philippines, East 

 Indies. 



Species. — About 85 species, only one of which occurs in Mexico. 



MABUYA MABOUYA MABOUYA (LacgpSde) 



Lacertus Mahouya LAci:p:feDE, Histoire naturelle des quadrupedes ovipares et des 



serpens, vol. 2, 1788, p. 378, pi. 24 (part). 

 Mahuya mahouya mahouya, Dunn, Proc. Acad. Nat. Sci. Philadelphia, vol. 87, 



1935, pp. 537-546 (part). 

 Scincus agilis Raddi, Mem. Soc. Ital. Modena, vol. 19, No. 18, 1823, p. 62 (type 



unknown; Rio de Janeiro). 

 Mahuia alliacea Cope, Journ. Acad. Nat. Sci. Philadelphia, ser. 2, vol. 8, 1875, 



p. 115. pi. 6, fig. 1 (U. S. N. M. Nos. 30619-20; Costa Rica).88 



Type. — Apparently unknown. 



Type locality. — Restricted by Dunn to the Lesser Antilles; here 

 restricted to St. Vincent. 



Range. — Coastal and foothill areas from southern Veracruz and 

 Colima southward to Ecuador, Bolivia, and southern Brazil. Re- 

 corded from numerous localities in the states of Colima, Michoacan, 

 Guerrero, Oaxaca, Veracruz, Tabasco, Campeche, Yucatan, Quintana 

 Roo (Cob a), and Chiapas, 



Genus SCINCELLA Mittleman 



Leiolopisma Auct. in part, nee Dumeril and Bibron, Erpetologie gen^rale, vol. 5, 



1839, p. 742 (type, Scincus telfairii Desjardines). 

 Scincella " Mittleman, Herpetologica, vol. 6, 1950, p. 19. 



Genotype. — Scincus lateralis Say. 



Range. — Greater part of eastern United States east of the Rocky 

 Mountains; Mexico from Hidalgo southward through Central America 

 to Panama. Ceylon, southern Asia, China, Philippines, East Indies, 

 Tasmania, Africa, New Zealand. 



Species. — About 50 species. Seven species and 10 forms are known 

 in the Americas, all except S. incertum of Guatemala occurring in 

 Mexico (even this exception may actually occur). 



KEY TO MEXICAN SPECIES OF SCINCELLA 



1. Frontoparietal divided; many median subcaudals in contact on each side with 



2 scales 2 



Frontoparietal single; median subcaudals in contact with only 1 scale on 

 each side 6 



" Also see Travassos, Bol. Mus. Nae. Brasil, new ser., Zool., No. 37, 1945, pp. 1-7. 



" This is the only name based upon continental (as opposed to island) specimens north of South America. 

 It may be revived, for imdoubtedly geographically segregated variants of taxonomic magnitude do exist 

 within the enormous range now included within this supposedly single race. 



" Adoption here of this name is the decision of solely the senior author. 



