with pale green; flanks pale green or spotted with pale green, 

 or with pale spots on the outer row of scales; some specimens 

 uniformly green. Lower surface olive or greenish-white, uniform 

 or spotted with black. Length of head and body 830 mm.; 

 tail 150 mm. 



Habitat: Sumatra (Deli). Malay Peninsula!; Penang!; 

 Singapore; Andamans; Nicobars; Burma; Assam; Bengal; 

 E. Himalayas. 



5. Lachesis gramineus (Shaw). 



Coluber gramineus, Shaw, Zool. Ill 1802, p. 420. 

 Lachesis gramineus, Boulenger, Cat. Sn. Ill 1896, p. 554 (s. syn.). 

 Trimeresurus gramineus, Barbour, Mem. Mus. Comp. Zool. Harv. Coll. XLIV 

 1912, p. 141. 



Snout with distinct edge; eye small. Rostral as broad as 

 deep or a little more broad; nasal usually entire; scales on the 

 head small, smooth; supraocular narrow, sometimes divided; 

 one or two scales between the internasals or latter shields in 

 contact; 8 13 scales between the supraoculars; two or three 

 postoculars; a subocular, sometimes in contact with the third 

 labial, usually separated from the labials by one to three series 

 of scales; eight to twelve upper labials, second bordering the 

 loreal pit anteriorly, third largest; temporal scales smooth. 

 Scales almost smooth or keeled, in 21 (19 or 23) rows; ventrals 

 145 175; anal entire; subcaudals 52 78, in two rows; tail 

 prehensile. 



Bright green above, or olive or yellowish, with or without 

 indistinct black transverse bands; a light, yellowish streak 

 usually present along the outer row of scales; end of tail yellow 

 or red. Lower surface green, yellow or whitish. Length of 

 head and body 720 mm.; tail 150 mm. 



Nom. in dig. Ular bisa (W. Sumatra); oraj bungka (sund.); 

 esau (Timor); semelo (Kupang); keisau (Rotti). 



Habitat: Nias; Sumatra (Deli!, Labuan, Langkat, Battak 

 Highlands 800 1000 M., Indrapura, Padang Highlands!); Bor- 

 neo (Kina Balu, Saiap on Kina Balu, Mt. Dulit, Pangkalan 

 ampat); Java! (Batavia, Buitenzorg, Krawang, Semarang); Lom- 

 bok; Sumbawa; Flores!; Adonara!; Alor (Ombaai); Roma!; 

 Sumba!; Rotti; Timor!; Samao!. Penang; Malay Peninsula; 

 Andamans; Nicobars; S. China; Siam; Bengal; Himalayas; 

 Philippines. 



