550 VIPERID&. 
the second labial; 9 or 10 upper labials. Scales feebly keeled, in 
21 rows. Ventrals 136-145; anal entire; subcaudals 31—40 pairs. 
Brown above, with dark brown spots, those of the median series 
often confluent into a zigzag band; a more or less distinet f-shaped 
light marking on the nape; a dark temporal band; belly whitish, 
spotted or marbled with grey or black; end of tail yellow or 
reddish. 
Total length 480 millim. ; tail 55. 
From the Bombay hills to the Anamallays and Nilgherries. 
a-b. § (V. 186, 145; C.89, Madras Presidency.  T. C. Jerdon, Esq. 
40 
). [P.]. (‘Types.) 
ec. 9 (V. 189; C. 81). Deccan. Col. Sykes Gag 
d. 2 (V. 138; C. 34). Anamallays, 4700 ft. W. Ai ag aq. 
e. 2 (V. 187; C. 32), Nilgherries. Lod benties Sh 
S,g-h. 3& (V. 142; C.39),  Nilgherries. Col. Beddome [C. }. 
2 (V. 137; C. 32), & yg. 
(V. 136; C.37). 
19. Lachesis flavoviridis. 
Bothrops flavoviridis, Hallow. Proc. Ac, Philad. 1860, p. 492 ; 
Bouleng. Proc. Zool. Soc. 1887, p. 149. : 
Trimeresurus riukianus, Hilgend. Sitzb. Ges. Nat. Fr. Berl. 1880, 
p- ie pl. —. figs. 6-10; Fisch. Jahrb. Hamb. Wiss. Anst. y. 1888, 
wine flavoviridis, Bouleng. Faun. Ind., Rept. p. 425 (1890), - 
Rostral as deep as broad or broader than deep ; nasal divided or 
semidivided ; upper head-scales very small, flat, juxtaposed, smooth ; 
supraocular large ; one to four scales separating the internasals in 
front; 7 to 12 scales on a line between the supraoculars ; one to 
three small postoculars and a subocular, which is in contact with 
the third labial or separated by one series of scales; temporal 
scales smooth; 8 or 9 upper labials, second forming the anterior 
border of the loréal pit. Scales rather feebly keeled, in 33 to 37 
rows, Ventrals 222-231; anal entire; subcaudals 75-90 pairs. 
Pale brownish or greenish yellow above, with black marblings or a 
dorsal series of dark rings or rhombs enclosing light spots of the 
ground-colour; head with longitudinal black streaks disposed 
symmetrically ; belly yellowish or greenish white, with more or less 
distinct dark spots or variegations. 
Total length 1215 millim. ; tail 220. 
Loo Choo Islands. 
oe # OO 37; V. 225, 225; Okinawa. Dr. J. G. Fischer. 
‘ 40). 
o-d. g (Sc. 85; V. 231; C. 90) Okinawa. Mr, Holst [C.]. 
& yg. (Se. 83; V. 229; C. 79). 
e-f, gy. 3 (Se. 83; V. 223; C. 86) Loo Chools, H, Pryer, Esq. [P.]. 
& yg. (Sc. 85, 35; V. 222, 230; 
C.'83, 75). 
