648 Catalogue of Reptiles inhabiting the [July, 



Ground-colour, above blackish-grey ; the back and sides with 7 parallel 

 lines of pale sulphur colour, edged with black , the 2nd from below, the 

 4th and 6th composed of more or less confluent spots, the other 3 of 

 distant round spots. The expanded membrane black with 7 or 8 broad 

 distant, transversal bars of a brilliant orange. The tail above with 

 numerous small pale yellow spots. The forelegs with orange coloured 

 rounded spots, some of which tipped with azure ; the hindlegs minutely 

 spotted with yellow. The throat pale azure ; abdomen pale orange» 

 marbled with broad bluish black veins ; the tail beneath pale yellowish 

 white. The lower eyelid is pure white ; pupil circular, iris hazel with 

 a narrow golden ring. 



Habit. — Malayan Peninsula, Finang. 



Cochin-China. 



I 



The head is covered with small elongated polygonal keeled scales ; 

 the upper jaw with 26, the lower with 18 to 20. The mental shield 

 is elongated, polygonal ; the upper part of the sides is joined to the 

 first lower labial scale ; the centre part is on each side in contact with 

 the first of series of 13 to 15 elongated polygonal scales, which follow 

 the tract of the labial, between which there is a narrow intervening 

 space covered with smooth polygonal scales, larger than those of the 

 rest of the throat. The back and wing-membranes are covered with 

 minute granular scales ; the abdomen with larger smooth rhombic scales. 

 Those of the tail, above and beneath are verticillated, rectangular, 

 subimbricate, and strongly keeled. The tongue is thick, fungous, not 

 scaly as incorrectly represented, with the tip much flattened, free and 

 slightly extensile, divided in two laterally compressed sharp points. — 

 The molar teeth are tricuspidate, increasing in size, the anterior being 

 the smallest. In the adult they are much worn and incrustated with 

 brown tartar, like the teeth of Semnopitheci and Ruminantia. 



Dentition. 

 Incis. — — , Canin. ~^— } Molar. ' . 



The nails are long, slightly arched, of a pale yellowish horn-colour. 



The wing-membrane in a state of repose appears like a longitudinal 

 loose fold, extending along each side from the axilla to the inguinal re- 

 gion. Expanded the external margin becomes arched, the trunk and the 

 membranes forming a greatly flattened oval disk, (strongly contrasting 



