CALOTES. 141 



cross bands, broader than the interspaces between them ; young 

 sometimes with a whitish longitudinal band on each side of the 

 back. 



From snout to vent 5-5 inches ; tail 20. 



Hob. Ceylon, Southern India, Nicobars. 



155. Calotes nigrilabris. 



Calotes rouxii (non D. $ B.\ Blyth, J. A. S. B. xxii, 1853, p. 647. 

 Calotes nigrilabris, Peters, MB. Ak. Berl. 1860, p. 183 ; Giinth. 



JRept. B. I. p. 143, pi. xiv, fig. D ; Theob. Cat. p. 107 ; Bouleny. 



Cat. Liz. i, p. 328. 



Upper head-scales smooth, imbricate, not or but slightly enlarged 

 on supraorbital region ; a short series of three to six small spines 

 above and behind the posterior part of the tympanum ; the latter 

 measuring half, or more than half, the diameter of the orbit. 

 Gular pouch not developed ; gular scales more or less distinctly 

 keeled, as large as ventrals. A strong oblique fold or pit in front 

 of the shoulder. Dorso-nuchal crest composed of small lanceolate 

 spines, the longest of which, on the nape, measure about two thirds 

 the diameter of the orbit ; on the back the crest is very distinct, 

 but the spines gradually decrease in size. 43 to 47 scales round 

 the middle of the body ; dorsal scales rather feebly keeled, the 

 upper pointing straight backwards, the others downwards and back- 

 wards ; ventral scales much larger than dorsals, very strongly keeled, 

 mucronate. The adpressed hind limb reaches the eye ; third and 

 fourth fingers equal. Tail round ; in the males the scales on the 

 basal part of the tail very large and bard, those of the median 

 upper row forming a slightly serrated ridge. Green, uniform on 

 the back and tail, or with angular whitish black-edged angular 

 cross bars or ocelli, with or without a reddish-brown vertebral 

 band ; lips and sides of head with a broad black band or variegated 

 with black in the male ; female usually with a white, black-edged 

 horizontal streak below the eye. 



From snout to vent 4 inches ; tail 12. 



Hab. Ceylon. 



156. Calotes lioceplialus. 



Calotes liocephalus, Giinth. A. M. N. H. (4) ix, 1872, p. 86 ; Ttieob. 

 Cat. p. 109 ; Bouleng. Cat. Liz. i, p. 329. 



Upper head-scales smooth, imbricate, enlarged on supraorbital 

 region ; no spines whatever on the side of the head ; tympanum 

 measuring a little more than half the diameter of the orbit. Gular 

 pouch not developed ; gular scales much larger than ventrals, rathe 

 feebly keeled. An oblique fold in front of the shoulder. Nuchal 

 crest composed of narrow spines, the length of which equals the 

 diameter of the tympanum ; dorsal crest a mere serrated ridge. 

 45 scales round the middle of the body ; dorsal scales feebly keeled, 

 the upper ones pointing straight backwards or slightly upwards, 



