1847.] Malayan Peninsula and Islands. 625 



liquely oval without dentilations. The cheeks are much swollen. The 

 scales of the back are small, rounded, hexagonal, becoming more rec- 

 tangular on the sides. The rows of lenticular scales along the vertebrae 

 are smaller than the rest, but not so close as in P. guttatus. Behind 

 the mental scale is a pair of large elongated scales, and 5 pentagonal larger 

 appear on each side behind the lower labials. The gular scales are 

 small, polygonal ; the abdominal are rounded, hexagonal, not imbricate, 

 and below the root of the tail become somewhat larger. The rest 

 of the lower surface of the tail is covered with scutella. Above the 

 covering of the tail is like that of P. guttatus. On each side of the 

 posterior margin of the cloaca are two very large tubercular scales, 

 and towards the centre two rather large postanal pores, covered by a 

 loose fold of the skin. Fourteen femoral pores are placed on a slightly- 

 angular line. This species is also closely allied to Platydactylus mo- 

 narchusy Schlegel, from which it however readily may be distinguished 

 by the regular rows of lenticular dorsal scales, by its far greater size, 

 and by its loud note. It is not numerous at Pinang. The only indi- 

 vidual obtained, from the villa on the Pentland Hills, was a male of the 

 following dimensions : 



Length of the head, 2f inch. 



Ditto ditto trunk, 5f 



Ditto ditto tail, 8| 



Entire length 1 ft. 4 inch, 



Platydactylus monarchus, Schlegel, MS. 



Syn. — Platydactylus monarchus, Schl. apud Dum. and Bibr. 

 Gecko monarchus, Gray : Catal. 



On the back, sides and limbs numerous conical tubercles irregularly 

 scattered among the smaller flat polygonal scales ; on the upper surface 

 of the tail 6 to 13 transversal series of small spines ; beneath scutella, 

 sometimes mixed with scuta. Chin with 2 larger oblong scales. 



New-born. — Above brown, with the dorsal and caudal tubercles (no 

 spines) white ; the posterior part of the tail indistinctly white ringed ; 

 beneath uniformly paler brown. 



Adult. — Above buff or ash-coloured or reddish brown, with 8 to 1 2 

 pairs of irregularly rounded, distant, dark brown spots along the spine ; 



4 m 2 



