374 Lac erf Ida'. 



is niiirli Id'oader tliau loiii^- * ; prefrontals as long- as liroad or longer 

 than broad, forniing au extensive median suture ; frontal as long as 

 its distance from the nasals, 1§ to 2 times as long as broad, narrow 

 behind, deeply grooved along the middle ; parietals much broader 

 than long, meeting behind the interparietal, which is nearly as large 

 as or smaller than the frontoparietals ; no occipital. Three large 

 supraoculars, forming sutures with each other, the first nearly as long 

 as the second and in contact with the first superciliary, the second 

 loreal, the prefrontal, and usually the frontal ; a small, band-like 

 fourth su])raocular ; a series of granules on the inner, outer and 

 postei-ior side of the larger pair of supraoculars, the series sometimes 

 double behind ; 6 to 8 superciliaries, first longest. Lower nasal not 

 reaching the rostral, resting on the three anterior upper labials ; 

 anterior loreal as long as deep or longer than deep, shorter than the 

 second ; subocular strongly keeled below the eye, resting on the 6th 

 to 8th (rarely 5th to 7th) upper labials. Temporal scales granular, 

 smooth, a little larger beneath ; no tympanic shield ; no auricular 

 denticulation. 



4 or 5 pairs of chin-shields, the 3 t anterior in contact in the middle. 

 27 or 28 gular scales on a line between the symphysis of the chin- 

 shields and the median collar-plate ; no gular fold. Collar nearly 

 straight, only a few of the median scales feebly enlarged. 



Scales gi'anular, smooth, 68 to 82 across the middle of the body. 

 Ventral plates as long as broad or a little longer than broad, tessellated 

 or in oblicjue longitudinal series, in 35 to 37 transverse series, the 

 longest of which contain 20 to 24 plates. A rather small preanal 

 plate, sometimes divided longitudinally. 



Upper surface of arm with rhombic smooth scales, wliich are a little 

 larger than the largest gulars. Upper surface of tibia with minute 

 granules ; lower surface with one row of large and 2 or 3 of small 

 plates. Fingers and toes strongly fringed on both sides ; 3 series of 

 scales round the fingers, the outer fringe formed by the upper series, 

 4 round the toes ; subdigital lamellae smooth or feebly keeled, 20 to 

 23 under the fourth toe ; ungual lamalla with a wing-like lateral 

 expansion. 



Caudal scales small, truncate, smooth or feebly keeled, the dorsal 

 granules extending for some distance along the middle of the tail. 



Brownish yellow above in life, with very numerous lighter circular 

 spots ; a more or less distinct dark streak along the side of the tail. 

 Lower parts white. 



* Unless divided into three shields. 



t Sometimes 2 according to Alcock and Finn. 



