114 AGAMID^. 



than the head, covered with very large scales. Male with a slight 

 nuchal fold. Dorsal scales equal, very feebly keeled, not larger 

 than ventrals ; a more or less distinct lateral series of enlarged 

 keeled distant scales. The fore limb stretched forwards extends 

 considerably beyond the tip of the snout ; tlie adpressed hind limb 

 reaches beyond the axil. Greyish or brownish above, with me- 

 tallic gloss, without distinct spots ; wing-membranes above witli 

 5 arched transverse black bands, about as wide as the interspaces 

 between them ; some of these bands may be forked at the base 

 or enclose large light spots ; wng-membranes uniform below. 



From snout to vent 2-75 inches ; tail 5*25. 



Hah. Tenasserim and Siam. 



Genus SITANA, 

 Cuvier, Regne Au. 2ud ed. ii, p. 43, 1829. 



Body slightly compressed, limbs long. 

 Fifth toe absent. Scales all keeled, re- 

 gular, smallest on the flanks. No dorsal 

 crest. Male with a sliglit nuchal fold 

 and a large folding gular appendage 

 extending backwards to the belly and 

 covei-ed with large scales. No gular 

 fold. Ear exposed. No prseanal or 

 femoral pores. 



Distribution. India ; Ceylon. A single 



Fig. 37.— Foot of species. 

 Sitana ponttceriana. 



118. Sitana ponticeriana. 



Sitana ponticeriana, C'uv. Rcgne Ati. ed. 2, ii, p. 43 : Gilnth. Eept. 



B. I. p. IS.) ; Theoh. Cat. p. 102 ; Boulctu/. Cat. Liz. i, p. 270. 

 Sitana minor, Gilnth. I. c. pi. xiv, fig. A. 

 Sitana deccanunsis, Jerdon, P. A. S. B. 1870, p. 7G. 



Upper head-scales small, sharply keeled ; canthus rostralis and 

 supraciliary edge sharp, with much enlarged scales. Dorsal scales 

 larger than ventrals, with sharp keels forming straight longitudinal 

 lines ; lateral scales smallest, uniform or intermixed with scattered 

 enlarged ones. Limbs above with uniform strongly keeled scales. 

 The length of the limbs varies very much : in some specimens the 

 hind limb stretched forwards does not extend beyond the orbit, in 

 others it reaches the end of the snout or even considerably beyond. 

 Tail round, slender, once and a half to twice as long as the head 

 and body, covered with equal keeled scales. Olive-brown above, 

 with a series of rhomboidal spots along the middle of the back ; 

 a more or less distinct light band along each side of the back. 

 Gular appendage tricoloured — blue, black, and red ; this appendage 



