192 SCINCID^. 



From what cau be gathered from the short remarks of Theobald 

 and Stohczka, the Andamans Mahuia is surely distinct from the 

 other species of the genus. It is said to have only 26 scales round 

 the body, the dorsals feebly tricarinate, the middle keel being 

 weaker than the lateral ones. The supranasals are in contact 

 behind the rostral. Above uniform, somewhat pale brown, paler 

 on the sides towards the belly, and with a few indistinct darker 

 spots ; limbs spotted with white and dark brown ; below yellowish 

 white; tail leaden grey. 



From snout to vent about 8 inches ; tail about 12. 



Hub. Andaman Islands. 



216. Mabuia quadricarinata. 



Mabuia quadricarinata, Bouleng. Ann. Mus. Genova, (2) iv, 1887, 

 p. 618. 



Snout moderate, obtuse. Lower eyelid scaly. Xostril behind 

 vertical of suture between rostral and first labial ; a postnasal ; 

 anterior loreal not or but very slightly deeper than the second, in 

 contact with the second labial only ; rostral forming a suture \^ith 

 the frontonasal ; prsefrontals forming a median suture ; frontal as 

 long as frontoparietals and interparietal together or a little shorter, 

 in contact with the second supraocular ; 4 supraoculars, second 

 largest ; 6 supraciliaries, second and third longest ; frontoparietals 

 distinct, as large as or a little larger than the interparietal, behind 

 which the parietals form a median suture ; a pair of nuchals; 3 or 4 

 labials anterior to the subocular, which is large and not narrowed 

 below. Ear-opening roundish, a little smaller than a lateral scale, 

 without distinct lobules. Dorsal scales strongly quadricarinate, 

 nuchals mostly tri- or quinquecarinate ; 26 to 28 scales round the 

 middle of the body, subequal. The hind limb reaches the wrist or 

 the elbow of the adpressed fore limb. Subdigital lamellae smooth. 

 Scales on upper surface of hind limb bicariuate. Tail nearly twice 

 as long as head and body. Olive above, with small black spots ; 

 a whitish streak, edged with black above, from below the eye to the 

 ear ; lower surfaces whitish. 



From snout to vent 2 inches ; tail 3*o. 



Hah. Ivakhyen Hills. 



Genus LYGOSOMA, 



Gray, Zool. Journ. iii, 1827, p. 228. 



Palatine bones in contact mesially ; pterygoid bones also in con- 

 tact anteriorly, the palatal notch not extending forwards to between 

 the centres of the eyes (see h'g. c, p. 182); pterygoid teeth minute 

 or absent. Maxillary teeth conical or obtuse. Eyelids well deve- 

 loped. Ear distinct (or hidden) ; if distinct, tympanum more or less 

 sunk. Nostril pierced in the nasal ; supranasal present or absent. 

 Limbs more or less developed (or absent). 



