6-iO Catalogue of Reptiles inhabiting the [July, 



larger, smooth. Tail compressed, keeled and toothed above, with 2 

 series of elongated keeled scales beneath. Femoral and preanal scales 

 none. 



Dilophyrus grandis, Gray. (PI. XX.) 

 Habit. — Pinang Hills. 

 Rangoon. 



As the only published characters of this species leave its identity 

 with the Malayan somewhat donbtful, they are here preposed. 



" Olive green ; sides white spotted, beneath whitish ; tail black- 

 banded ; head with lines of rather larger scales; crest very high, 

 formed of broad compressed close-set scales, with 3 or 4 series of scales 

 on each side of the base, interrupted over the shoulders." (Gray : 

 Catalogue of the Specimens of Lizards, fyc. p. 239.J 



Form. The head is elongated, four-sided pyramidal, its greatest 

 height and breadth being equal, and less than one half of the length. 

 The muzzle is narrow, rounded, depressed. The upper surface of the 

 head is very sloping, with a narrow furrow between the arched orbital 

 parietes ; the forehead depressed or concave. The scales are polygo- 

 nal, keeled ; those of the margin of the orbits and forehead larger, 

 imbricate, forming a sharp ridge ; four similar scales form a short ridge 

 in the centre of the forehead, close to the muzzle. Behind the orbit, 

 over tympanum, and on each side of the nape of the neck are similar 

 short, oblique ridges, each composed of 5 larger pointed tubercular 

 scales. The rostral shield is very broad, narrow, triangular ; the men- 

 tal, is much smaller, pointed, triangular, with two large polygonal scales 

 on each side. The upper jaw is covered with 26, the lower with 24 

 elongated, narrow, rectangular scales. 



Dentition. 



t • 6 ,i 1 — 1 ™ i 14-14 36 



lncis. — ; Caum. Molar, == 



4 1—1 ' 14.14 34 



The incisors and anterior molars are very small ; the latter gradually 

 increasing in size, flat, sharply edged, bluntly tricuspidate. The tongue 

 is thick, flattened, very slightly notched in front, the anterior half 

 spongy, the posterior with large backwards pointed papillae. The nos- 

 trils are nearly circular, pierced in a large oval scale, in front of which 

 3 scales intervene between the rostral. The eyes are large, sunk in 

 the orbits ; the pupil circular, black ; the iris blue with golden 



