116 



REPTILIA: SAURIA: IGUANIDAE * * T^ ENYALIOSAURUS 



ENYALIOSAURUS Gray 



1845 Enyal iosaurus Gray, Cat. Liz. Brit. Mus.; I52. Type-species: Cyclura qu inquecar i nata Gray. 



1866 Cachryx Cope, Proc. Acad. Nat. Sci. Phila., 1866: 124. Type-species: Cachryx defensor Cope. 



Distribution: Mexico and Guatemala. 



Content: Four species, of which two ( defensor Cope and c 1 a rk i Bailey) are 

 extral i m i tal. 



Key to the species Clave de especies 



1. Dewlap present; keeled scales on dorsal surface 1. Con papada; escamas quilladas en la superficie 



of upper arm; central row of caudal spines dorsal del brazo; espinas caudales de hilera 



smaller than lateral spines palear i s central menores que espinas latera Íes- pal ear is 



Dewlap absent; smooth scales on dorsal surface Sin papada; escamas lisas en la superficie 



of upper arm; central row of caudal spines dorsal de brazo; espinas caudales de hilera 



equal in size to lateral spines central de igual tamaño que espinas laterales- 



qu inquecar i na tus quinquecarinatus 



ENYALIOSAURUS PALEARIS (Stejneger) 



ISqq Ctenosaura palearis Stejneqer, Proc. U.S. Nat. Mus., 21: 381. Type-locality: Gualan, Guatemala. 

 iq'iO [En yaliosaurus J palearis — Smith and Taylor, Bull. U.S. Nat. Mus., 155: 76. 



Distribution: Low elevations of valley of Río Motagua, Guatemala; Aguan Valley of Honduras. 



ENYALIOSAURUS QUINQUECARINATUS (Gray) 



1842 Cyclura qu inquecar i nata Gray, Zoological Miscellany: 59- Type-locality: None given; restricted 



to Tehuantepec, Oaxaca, by Bailey, Proc. U.S Nat. Mus., 73, 1528, 43. 

 1845 Enyal i osaurus qu i nquecar i nata — Gray, Cat. Liz. Brit. Mus.: I52. 



Distribution: Lowlands of southern Oaxaca; Matagalpa region of Nicaragua; Honduras. 



