upper labials, fourth to sixth or fifth and sixth entering the eye ; 

 four or five lower labials in contact with the anterior chin- 

 shields; latter as long as the posterior. Scales in 19 rows, feebly 

 keeled; ventrals 230 249; anal divided; subcaudals 108 130. 

 Black above, each scale with a yellowish-green spot, or green 

 with black-bordered scales; posterior part of body and tail 



Fig. 44. Gonyophis margaritatus (Ptrs.). After Peters. 



with orange rings; a black streak on each side of the head 

 behind the eye, and another on the suture between the parietals. 

 Lower surface yellowish, sometimes with black edges to the 

 shields. Length of head and body 1160 mm.; tail 370 mm. 



Habitat: Borneo (Mt. Dulit, Sarawak, Kuching, Mt. Me- 

 rinjak 2200 feet on Sadong river, Balikpapan!). Singapore; 

 Malay Peninsula. 



20. Lycodon Boie. 



(BoiE, Isis p. 521, 1827). 



Head slightly distinct from neck, depressed; eye rather small; 

 pupil vertically elliptic; nostril large. Maxillary curved anteri- 

 orly, 3 6 anterior teeth fang-like, separated by an interspace 

 from the rest, 7 15, of which the posterior are largest; anterior 

 mandibular teeth long. Body long, round or compressed, 

 covered with smooth or keeled scales with pits, in 17, I9or2i 

 rows; ventrals rounded or with a lateral keel. Tail moderate; 

 subcaudals single or in two rows. 



Distribution. S. E. Asia. 



Nocturnal and oviparous snakes. 



