8. CEKATOPHORA. 277 



8. CERATOPHORA. 



Oeratophora, Oray, III. Ind. Zool. ; Dum. §• Bibr. iv. p. 433 ; 

 Fitzing. Si/st. Rept. p. 47 ; Oray, Cat. p. 237 ; Oiinth. Rept. Brit. 

 Ind. p. 129. 



Tympanum hidden. Body more or less compressed, covered with 

 unequal scales. No dorsal crest ; a nuchal crest present or absent. 

 No gular sac ; no gular fold. A large rostral appendage, at least 

 in the males. No femoral or praeanal pores. 



Ceylon. 



Synopsis of the Species. 



Gular scales larger than the ventrals, smooth ; 

 lateral scales large, unequal ; rostral appen- 

 dage scaleless 1. stoddartii, p. 277. 



Gular scales larger than the ventrals, feebly 

 keeled ; lateral scales large, equal ; rostral 

 appendage scaly 2. tennentii, p. 278. 



Gular scales smaller than the ventrals, strongly 

 keeled; lateral scales small; rostral appen- 

 dage scaly 3. aspera, p. 278. 



1. Ceratophora stoddartii. 



Oeratophora stoddartii, Gray. Cat. p. 237. 

 Ceratophora stoddartii, Gray, Ind. Zool. ; Dum. 8r Bibr. iv. p. 434 ; 

 Kelaart, Prodr. Faun. Zeyl. p. 129 ; Gunth. I. c. pi. xiii. fig. F. 



Upper head-scales small, irregular, keeled or tubercular ; occiput 

 concave, with a short raised ridge on each side ; interorbital space 

 concave ; rostral appendage scaleless, flexible, pointed ; its length 

 varies considerabl5^ and it is short or entirely absent in the female ; 

 ten to twelve upper and nine or ten lower labials. Gular scales 

 smooth, large, subquadrangular, forming regular longitudinal series, 

 those on the median line smaller, A low denticulated nuchal crest. 

 Dorsal scales irregular and unequal in size, those on the sidei large, 

 strongly imbricate, and pointing upwards and backwards, intermixed 

 with smaller ones; some of the dorsal scales feebly keeled, the 

 others smooth ; ventral scales small, smooth or feebly keeled. Limbs 

 above with unequal keeled scales ; the adpressed hind limb reaches 

 the posterior border of the orbit or not quite so far. Tail slightly 

 compressed, covered with equal keeled scales, intermixed with a few 

 enlarged ones at the base ; its length is once and two thirds to twice 

 that of head and body. Olive above, with more or less distinct 

 irregular darker cross bars on the back and limbs ; frequently a 

 white streak behind the orbit and a waite spot or longitudinal band 

 on the side of the neck ; a white line along the hinder side of the 

 thigh ; rostral appendage and throat white (K spirit). 



Total length 252 millim. 



Head 26 „ 



Width of head 16 „ 



