276 AeAMEDa;. 



head-Bcales rather large, unequal, tubercular ; male with a small 

 tubercle on the tip of the snout : eight to ten upper and as many 

 lower labials ; gular scales feebly keeled, smallest on the median 

 line. Nuchal crest composed of three or four lanceolate spines, the 

 longest of which about equals the diameter of the orbit ; dorsal crest 

 non-continuous with the nuchal, composed of twelve to fourteen 

 similar lobes separated from one another ; in the female the lobes 

 of the crest are shorter and not raised, but bent sideways on the 

 back. Dorsal scales very large, irregular, imbricate, smooth or 

 shortly keeled, the keels pointing downwards and backwards ; ventral 

 scales small, lanceolate, strongly keeled, mucronate. Scales on the 

 hmbs irregular, keeled, some slightly spinose ; fingers and toes not 

 very long, third slightly shorter than fourth ; infradigital scales 

 feebly keeled ; the adpressed hind Umb reaches hardly the axil. 

 Tail feebly compressed, covered with keeled scales which are smaller 

 inferiorly; its length is not once and a half that of head and body. 

 Olive above, with irregular dark-brown cross bands ; a Hght, reddish- 

 brown to cream-coloured band from the end of the snout on the 

 upper lip to above the shoulder ; a cream-coloured spot on the nape 

 and a cross band of the same colour on the anterior part of the back ; 

 lower lip with a broad dark-brown margin; more or less distinct 

 oblique brown lines on the sides ; taU with dark annuli. 



Total length 140 miUim. 



Head 19 „ 



Width of head ....... 10 „ 



Body 47 „ 



Fore limb 28 „ 



Hind limb 33 „ 



Tail 74 „ 



Ceylon. 



a. c? . Oeylon. G. H. K. Thwaites, Esq. [P.! 



5. ?. Ceylon. 



c-e. 3 & yg. Ceylon. W. H. Holdsworth, Esq. [0.]. 



2. Cophotis smnatraua. 



Cophotis sumatrana, Huhrecht, Notes Leyd. Mus. i. 1879, p. 343, 



Very closely allied to the preceding, from which it is to be distin- 

 guished by the following characters : — A rostral appendage consis- 

 ting of a small pointed horn-like scale ; a fringe of elongated scales 

 along the supraciliary edge. Fuohal crest composed of nine larger 

 and several smaller lobes ; dorsal crest composed of eighteen lobes ; 

 the crest extends on more than three fourths of the length of the 

 taU. Caudal scales as large ventrally as dorsally. Body and tail 

 with broad brown cross bands. Head marmorated with brown. 

 Total length 180 millim. 



Sumatra. 



