1825.] Mr. Gray on the Genera of Reptiles, 197 



3. Agama. 



Body and head scaly ; tail with small scales ; femoral pores 

 none ; toes 5-5. 



This genus contains the following subgenera characterized by 

 the form of the scales, &c. 



1. Stelho, Baud; St. vulgaris ; Lacerta stellio, Lin. 2. Agama, 

 Baud; A. muricata, Baud. 3. Tapayia, Gray ; T. orbicularis ; 

 Lacerta, Lin, 4. Trapelus, Cmv. ; T. mutabilis, 7ioZ>. Calotes, 

 Merren, 5. Calotes, Cuv. ; C. ophiomachus, nob. ; Lacerta 

 Calotes, Lin. 6. Lyriocephalus, Merrem (Lophyrus, OppeL). 

 L, margaritaceus, Merren, 



4. VnEVSTEs, Merrem, Agama, JDawc?. 

 Toes four before, five behind ; tail prehensile. 



P. prehensilis, Merrem, Carapopeba, Margrave, 



6. "BksiLi CVS, Laurent, 

 .'Head and body scaly; tail with a dorsal fin supported by 

 bony rays ; femoral pores distinct. 



B. mitratus, Band. 



6. Draco, Lm. 



Head and body scaly ; sides of the body with wing-like expan- 

 sions supported by the spurious ribs ; femoral pores none ; tail 

 round, scaly. 



D. viridis. Baud, 



1. Pterodactylus, Cuv. 



The index finger of the fore foot longer than the body 

 " supporting a flying membrane,'^ Cuv. 

 P. longirostris, Cuv. 

 ft With teeth in the throat. 



8. Clamydosaurus^ Gray, 



Head and body scaly; tail round scaly; neck with a large 

 pliated frill on each side; femoral pores none. 



C. Kingii, Gray. New Holland, Capt. P. King; see the 

 inedited Journal of his V^oyage. (I am not certain that this 

 genus has palatine teeth.) 



9. Iguana, Baud. 

 Iguanina, Gray. 



Teeth unequal or compressed, denticulated ; head shielded; 

 body scaly ; back furnished with a dorsal crest ; femoral pores 

 distinct; toes 5-5 simple ; tail crested. 



L tuberculata, Laur, Lacerta Iguana, Lin. . • 



10. Cyclura, Harlan. 



Head ? body scaly ; back with a dorsal crest ; femoral 



pores distinct ; toes 5-5 simple ; tail with large whorled pointed 

 scales. ,: , ,„ *' 



C. carinata, Harlan, Acad. N. S. Phil, 1824. "^ * ' ' ' ' * * 



