a 
558 7 VIPERID&. 
21 rows. Ventrals. 180-191; anal entire; subcaudals 58-82, 
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 back; 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 180. 
Singapore, Sumatra, Borneo, Palawan. 
a,b. 9 (V. 187; C. 69) & Sin re. Dr. Dennys [P.]. 
hgr. ¢ (V. 180; C.77). Prep 7 va lPJ 
c. o (V. 180; OC. 76). Deli, Sumatra. Mr. Iversen [C.]. 
d, Yg. (V. 186; C. 67). | E. CoastofSumatra. Mrs. Findlay [P.]. 
e-h. g (V. 189; C.72)& Nias. Hr. Sundermann [C.]. 
2 (V. 190, 191, 188; ’ 
CG 66, 66, 63) 
zt. Yg. (V. 187; C. 58). Mt. Dalit, Sarawak. C. Hose, Esq. [C.], 
k. Yg. (V. 187; C. 82). Palawan. A. Everett, Esq. fo, 
28. Lachesis anamallensis. 
? Trigonocephalus (Cophias) malabaricus, Jerdon, Journ, As, Soc. 
Beng. xxii. 1854, p. 523, 
? Trigonocephalus (Gophias) wardii, Jerdon, 1. c. p. 524, 
Trimeresurus anamallensis, Giinth. Rept. Brit. Ind. p- 387, pl. xxiv. 
fig. C (1864); Fayrer, T. fee Ind. pl. xiv. (1874); Theod. 
Cat. Rept. Brit. Ind. p. 220 (1876); F. Miill. Verh. Nat. Ges, 
Basel, vii. 1884, p. 290; Bouleng. Faun. Ind., Rept. p. 430 (1890) ; 
Boetig. Ber. Offend. Ver, Nat. 1892, p. 92. 
Rostral slightly broader than deep; nasal entire; upper head- 
scales small, smooth or obtusely keeled, imbricate ; supraocular 
shield rather large, broken up into two or three; internasals in 
contact or separated by one scale; 7 to 9 scales on a line between 
the supraoculars; two or three postoculars and a subocular; the 
latter shield separated from the fourth and succeeding labials by 
two rows (rarely one) of scales; 9 or 10 upper labials, second 
forming the anterior border of the loreal pit, third largest; temporal 
scales obtusely keeled. Scales feebly keeled, in 21 (rarely 19, 
spec. 7) rows. Ventrals 138-158; anal entire; subcaudals 44-58 
pairs. Tail prehensile. Green, olive, yellowish, or reddish brown: 
above with more or less well-defined black or reddish-brown spots ; 
usually a series of yellow spots along each side of the belly, and a 
black temporal band; lower parts pale green, olive or yellow, or 
brown with yellow spots; tail usually black and yellow. 
Total length 730 millim.; tail 110. 
Anamallay and Nilgherry hills, 8. India, 
a-b,c,d,e,f,g. 3 (V.158, Anamallays. Col. Beddome [C.}. 
148; C. 50, 56), 2 (V. (‘Types.) 
150, 145, 149; C. ?, 53, 
51), & yg. (V. 148, 149; 
C. 49, 47). 
