218 



V1PEIMD.5:. 



third and fourth labials ; 9 to 11 upper labials, secoud forming 

 the anterior border of the loreal pit, third largest. Scales in 21 

 rows, feebly keeled. Ventrals 180-191 ; anal entire; subcaudals 

 58-82 pairs. Tail prehensile. Bright green above, the scales 

 usually black-edged, with or without black cross-bands ; two series 

 of small whitish spots may be present along the lia'ck ; a more or 

 less distinct whitish or yellow streak usually present on each side, 

 along the outer row of scales ; ventrals yellowish or green, with 

 or without fine black edges; end of tail red. 



Total length 1100 millim. ; tail ISO. 



Sumatra, Borneo, Palawan. Specimens stated to be from 

 Singapore were presented to the British Museum by Dr. Dennys ; 

 and in Selangor and Perak and Pahang it is fairly abundant at 

 elevations of 2000-3000 feet, especially where thei-e is much 

 bamboo-jungle. 



237. Lachesis borneensis. 



Atropophis borneensis, Peters, Ann. Mns. Civ. Genova, iii, p. 41 



(1871). 

 Lachesis borneetisis, Bouleng. Cat. Sn. iii, p. 561 (1896). 



Snout short, obliquely truncate, with sharp, raised canthus 

 most developed above the nasal shields. Kostral as deep as 

 broad ; upper head-scales small, juxtaposed or subimbricate, 

 smooth on snout and vertex ; 9 to 11 scales in a transverse series 

 between the supraocular shields, which are narrow or broken up 

 into scales ; 2 or 3 rovi's of scales between the eye and the labials ; 

 10 to 12 upper labials, second forming the anterior border of the 

 loreal pit, third largest. Scales in 19 or '^1 rows, dorsals feebly 

 and obtusely keeled. Ventrals 152-168 ; anal entire ; subcaudals 

 43-65. T'ail prehensile. Grreyish or reddish brown above, with 

 more or less distinct darker spots, which may be edged with 

 blackish ; a light, dark-edged streak on each side of tlie head, 

 behind the eye; belly profusely powdered with brown, or brown 

 with a lateral series of yellowish-white spots ; end of tail red or 

 reddish. 



Total length 770 millim. ; tail 105. 



Originally described from Borneo, this snake has since been 

 rediscovered in Sumatra and, by Mr. L. Wr.iy, at Merak in the 

 Perak Hills, at an altitude of 3000 feet. Mr. A. J. B. Butcher 

 has recently presented to the State Museum a specimen obtained 

 at Ayer Itam, Selangor. 



238. Lachesis wagleri. 



Copliias wcif/lcri, Boie, Isis, 1827, p. 561. 



Triffonoce^jhalus sumafranus (non Baffles), Cantor, Jonrn. Asiat. Soc. 



Beng'al, xvi, p. 1042, pi. xl, lig. 1) (1847). 

 Trimercswus wctf/leri, Giintli. Bept. Brit. Iiul. p. 388 (1864). 



