28 REPTILIA. 



Trapelus, Cuv. 



The form and teeth of the Agamae, but the scales are small and 

 without spines; no pores on the thighs. 



Trap. Mgyptius; Lc Changeant (VEgypte, Geoff. Rep. d'Eg. 

 pi. V, f. 3, 4; the adult, Daud. Ill, xlv, 1, under the name of 

 Orbiculaire, is a little animal whose body is also sometimes in- 

 flated, and remarkable for changing its colours even more sud- 

 denly than the Chameleon. When young it is entirely smooth; 

 there are some larger scales scattered among the small ones on 

 the body of the adult. (1) 



Leiolepis, Cuv. 



The teeth of an Agama, the head less inflated, and completely 

 covered with very small, smooth, and compact scales. Pores on the 

 thighs.(2) The 



Tropidolepis, Cuv. 



Still similar to the Agamae in teeth and form, but regularly co- 

 vered with imbricated and carinated scales. The femoral pores 

 are strongly marked.(3) The 



Leposoma, Spix — Tropidosaurus, Boie, 

 Only dlflers from Tropidolepis, by having no pores. (4) 



Calotes, Cuv. (5) 

 The Calotes differ from the Agamae in being regularly covered 



(1) It is difficult to establish precise limits between this subgenus and certain 

 short, tiiick AgamK, that have but few spines. 



(2) There is a species in Cochin China that is blue, with white stripes and 

 spots, and a long- tail [Leil. guttatus, Cuv.). 



(3) .%. undulala, Daud., a species that is found throughout America, remark- 

 able for a white cross under the throat, on a black-blue ground. The .Hg. nigri- 

 collaris, Spix, XVI, 2, and cydurus, XVIIl, f 1, are at least closely allied to it. 



(4) Spix has not expressed himself with precision in saying that the scales of 

 his leposoma are vcrticillate, and tliis it is wiiich has deceived M. Fitzinger. The 

 genus Tropidosaurus was made by Uoie from a small species from Cochin China, 

 which is in the Cabinet du lloi. 



(5) Pliny says that the Stellio of tlie Latins was called by tiie Greeks Gukotes, 

 Colotes, and Jlskuldlmtes. It was, as we have seen, the Geckottc of Lacep. Its appli- 

 cation by LiniiKus to his Lac. calotes is arbitrary, and was suggested to him by 

 Seba. Spix comprises our Calotes in his genus 1-ophyhu.s, which is not tiie sajne 

 as that of Dumcril. 



