COPIIOTIS. 



117 



121. Ptyctolaemus gularis. 



Otocryptis (Ptyctolsemus) gularis, Peters, MB. Ak. Serl. 1864, 



p. 386. 

 Ptyctolaemus gularis, Bouleng. Cat. Liz. i, p. 273. 



Fig. 39. Throat and foot of Ptyctolcemits gvlaris. 



Head rather elongate, the snout longer than the diameter of the 

 orbit ; canthus rostralis and supraciliary edge angular ; upper head- 

 scales unequal, keeled; 8 upper and as many lower labials. A 

 slight indication of a nuchal crest ( $ ). Dorsal and lateral scales 

 small, feebly keeled, with some irregularly scattered enlarged and 

 strongly keeled; ventrals larger, strongly keeled. Limbs above 

 with subequal scales; the hind limb stretched forwards reaches 

 the posterior border of the orbit- ; fifth toe as long as third. Tail 

 roundish, slender, a little more than twice as long as head and 

 body, covered with subequal keeled scales. Olive-brown above, 

 with darker transverse spots; two curved dark-brown cross bands, 

 separated by a light one of equal width, between the eyes ; an oblique 

 dark-brown band from below the eye to the angle of the mouth ; 

 limbs and tail above with dark cross bands ; the skin in the gular 

 folds black. 



From snout to vent 2*75 inches ; tail 6-25. 



Hob. Only two specimens of this lizard are known : the type in 

 the Berlin Museum, which I have examined, said to be from Cal- 

 cutta ; the other, in the British Museum, is from Sadiya, in Assam. 



Genus COPHOTIS, 

 Peter?, MB. Ak. Berl. 1861, p. 1103. 



Tympanum hidden. Body compressed, covered with large sub- 

 equal irregular scales. A dorsal crest. A very small gular sac in 

 both sexes ; a slight transverse gular fold. Tail prehensile. No 

 femoral or prseanal pores. 



Two species are known, one inhabiting Ceylon, the other 

 Sumatra. 



