176 COLUBItlD^. 



Genus DEYOPHIOPS. 



Bouleu^. Cat. Sn. iii, p. 193 (189G). 



Maxillary teeth 20, subequal, the last two or three a little 

 enlarged and grooved ; anterior mandibular teeth enlarged. Head 

 elongate, distinct from neck, with distinct canthus rostralis ; eye 

 rather large, with horizontal pupil ; nasal entire ; frontal narrow, 

 bell-shaped. Body slender, compressed; scales smooth, oblique, 

 with apical pits, in 15 rows ; ventrals with suture-like lateral keel 

 and a notch on each side corresponding to the keel. Tail long; 

 subcaudals in two rows, keeled and notched like the ventrals. 



A single species in the Malay Peninsula. 



193. Dryophiops rulsescens. 



Dipsas rubescens, Gray, III. Ind. Zool. ii, pi. Ixxxiv, fig. 2 (1834). 

 Chrysopek'U 7-ubescens, part., Giinth. Kept. Brit. Ind. p. 299 (1864). 

 Dryophiops rubescens, Bouleng. Cat. Sn. iii, p. 194 (1906). 



^Rostral twice as broad as deep ; iuteruasais shorter than the 

 prsefrontals ; frontal once and a half to once and two thirds as 

 long as broad, as long as its distance from the end of the snout, 

 shorter than the parietals ; loreal much elongate ; one praeocular, 

 forming a suture with the frontal ; 2 or 3 postoculars ; temporals 

 2 + 2; 9 upper labials, fourth, fifth, and sixth entering the eye; 

 4 or 5 lower labials in contact with the anterior chin-shields, which 

 are much shorter than the posterior. Scales in 15 rows. Ventrals 

 188-199; anal divided ; subcaudals 111-136. Bronzy or reddish 

 brown above, with small black spots ; upper surface of head with 

 wavy longitudinal markings ; a dark streak on each side of the 

 head, passing tlirough the eye ; a median dark streak on the 

 occiput and neck ; labials a\ ith a few small black spots ; lower 

 parts yellow in front, reddish behind, dotted with darker, with 

 or without scattered small black spots. 



Total length 750 millim. ; tail 210. 



Obtained in Kelantan by Dr. A. G. H. Smart. The type 

 specimen is believed to be from the Malay Peninsula, and one 

 specimen from the north of Penang Island is in the Selangor 

 Museum. Otherwise this snake is known from Siam, Sumatra, 

 Borneo, and tlie Mentawei and Natuna Islands. 



An essentially arboreal type. A specimen preserved in the 

 British Museum had swallow ed a Draco melanojiogon. 



Genus CHRYSOPELEA. 



Boie, Isis, 1827, p. 020. 



Maxillary teeth 20 to 22, subequal, the last three a little longer 

 and grooved ; anterior mandibular teeth longest. Head distinct 



