432 Dll. M. A. SMITH ON BEPTtLES AND 



lying between the 1st labial and prefrontal ; a long 2nd labial*. 

 Other head-shields as in I). argenteus Taylor and D. novce-girinece 

 D. & B., viz. an enlarged frontal and a larger interparietal, an 

 ocular and an enlarged scale behind the 2nd labial on either side. 

 Mental narrow, trapezoid, with a pair of long infralabials. 



24-26 scales round the middle of the body, scales imbricate 

 and subequal. Prseanals enlarged. Light chocolate-brown above, 

 paler below. 



Types, J &, $ . Author's Nos. 4864, 4865. From Le Bosquet. 



Measurements of specimens in mm. : — 



Le Bosquet. 



Total Diamftter, 



length. Tail, mid-body. 



J. 4865 145 23 5 



$. 4864 145 21 5 



Daban. 



2. 2609 112 ? 3 



6. 2608 115 20 3 



2. 5365 70 11 2-5 



2. 5366 86 16 2-5 



$. 5367 65 12 2 



In the length of the tail (which from this table appears to be 

 comparatively longer in the young than in the adult) D. montanus 

 resembles D. argenteus from the Philippines. From it also, as well 

 as from D. novce-guinece , it differs in the greater differentiation 

 of the shields of the snout. 



Ra,ya milleti, sp. n. (PI. II. fig. 2.) 



Vomerine teeth in oblique series, commencing from the 

 anterior borders of the choanae and extending beyond their 

 posterior borders, the distance between them equal to their 

 distance from the choanse. Head a little longer than broad, 

 snout obtusely pointed, projecting beyond the mouth, longer than 

 the eye ; canthus rostralis distinct; loreal region slightly oblique, 

 strongly concave ; nostril distinctly nearer the tip of the snout 

 than the eye; distance between the nostrils greater than the 

 interorbital width, which is equal to or a little greater than 

 the upper eyelid ; tympanum very distinct, -§■- 1 the diameter of 

 the eye, and 2|-3 times its distance from the eye. 



Fingers rather long, 1st longer than 2nd ; tips with small but 

 distinct discs, which may bear a feeble groove separating the 

 upper from the lower surfaces ; subarticular tubercles large and 

 prominent ; discs of the toes larger than those of the fingers, and 

 with a distinct groove separating the surfaces ; toes -J- webbed ; 

 outer metatarsals separated nearly to the base ; subarticular 



* In the two adult examples from Le Bosquet (1200 metres) the shields are as 

 described, but in rive juveniles from Daban (200 metres) the sutures are feebly 

 evident or entirely absent. 



