Dr. J. E, Gray on several new genera of Reptiles. 4J9 



oblique dark cross bands extending up tbe base of the dorsal fin ; 

 legs and feet dark spotted ; scales of the nose, eyebrows, crown 

 and occiput small, keeled, with a series of small keeled scales on 

 the outer edge of the eyebrows ; of the back small ; of the tail and 

 outside of limbs larger keeled ; dorsal fin high and toothed oh 

 the edge, especially behind ; caudal fin high, rather sinuous on 

 the edge, and covered with large six-sided scales. 



Hab. Quibo. 



Named in honour of J. 0. Goodridge, Esq., Surgeon R.N., 

 who brought the specimen to England. 



This species is very much larger than the Basiliscus from 

 Guiana. 



4. Cristasaura. 



Back with a high erect crest supported by bony rays; tail 

 rather compressed, slightly ringed, sharp-edged, and furnished 

 with a series of large compressed scales on its upper edge ; occi- 

 pital crest large, rounded, thin, covered with thin small six-sided 

 scales. 



Cristasaura mitrella. 



Olive (in spirits), beneath paler ; angle of the mouth and chin 

 white, the latter marbled with bluish ; scales of the nose, of the 

 eyebrows and occiput moderate keeled, of the crest rather smaller, 

 very thin and slightly keeled ; of the back very small, of the tail 

 larger, and of the outside of the limbs much larger, both keeled ; 

 dorsal crest moderate, extending the whole length of the back, 

 edged with a series of compressed scales ; scales of the caudal 

 crest rather large, especially those near the base. 



Hab, Honduras, Dyson, 



5. CoRYTHEOLUs, Gray, Cat. Rep. B. M. 192. 



Back and tail with a series of large, short, compressed scales 

 forming a slight crest ; occipital crest rather large, covered with 

 small flat scales, and supported by the slender central straight 

 process of the occipital bone. 



C vittatus, Gray, Cat. Rep. B. M. 193. The hinder lower 

 labial plates with small scales beneath. 



Hab. Mexico ; Honduras ? 



III. Occiput flattishf with a very small compressed crest on the 

 middle of the hinder edge, 



6. Thysanodactylus, Gray, Cat. Rep. B. M. 193. 

 Back and tail wdth a series of rather large, short, compressed 

 scales forming a slight crest. 

 T. bilineatus, Gray, /. c. 193. 

 Hab. Fernando de Noranha. 



