528 VIPERID2. 
angle of the mouth, with a light band above it; yellowish beneath, 
uniform or powdered or spotted with greyish brown. 
Total length 810 millim.; tail 90. 
Java. | 
a. Hgr. d (V.148;C. Java. _ Leyden Museum. 
51). 
b-c. i (V. 145; C.46) Java. A. Scott, Esq. [P.]. 
& her. 2 (V. 148; 
C. yo 
d. 2 (V. 156; C. 36). Java. 
e-g. d (V. 148; C. 50) Batavia. R. Kirkpatrick, Esq. 
Q (V. 154, 157; [P.]. 
34, 37 
5000 ft. 
& 
CO. 37). 
h. 3 (V. 149; C. 48). Willis Mts., Kediri, Java, Baron v. Huegel(C.]. 
3 (V. 148; C. 50). Siam (?). 
10. Ancistrodon hypnale. 
Russell, Ind. Serp. ii. pl. xxii. (1801). 
? Coluber nepa, Law. Syn. Rept. p. 97 (1768). 
Cophias st eta Merr. Tent. p. 155 (1820), 
Trigonocephalus hypnale, Schleg. Phys. Serp. ii. p. 550, pl. xx. 
figs. 6 & 7 (1887); Gray, Cat. p. 15 (1849); Dum. § Bibr. vii. 
p. 1498 (1854); Jan, Icon. Gén. 46, pl. v. figs. 2 & 3 (1874). 
Trimesurus ceylonensis, Gray, Zool. Mise. p. 48 (1842), 
Trigonocephalus halys, Gray, Cat. p. 14. 
zara, Gray, l. c. p. 15. 
Hypnale nepa, Cope, Proc. Ac. Philad. 1859, p. 335; Giinth. Rept. 
Brit. Ind. p. 894 (1864) ; Fayrer, Thanatoph. Ind. pl. xvii. (1874) ; 
Theob. Cat. Rept. Brit. Ind. p. 226 (1876). 
affinis, Anders. Journ. As. Soc. Beng, xl. 1871, p. 20. 
Ancistrodon hypnale, Bouleng. Faun, Ind., Rept. p. 424 (1890). 
Snout more or less turned up at the end, with sharp canthus, 
Rostral as deep as broad, or deeper than broad; upper surface 
of snout covered with small shields, which are often irregular 
and scale-like; one or two postoculars and one or two sub- 
oculars; 7 or 8 upper labials, second entering the loreal pit, none 
entering the eye. Scales more or less distinctly keeled, in 17 
rows. Ventrals 125-155; anal entire; subcaudals 28-45 pairs. 
Coloration very variable; upper parts brown, yellowish, or greyish, 
uniform or with blackish-brown alternating spots or cross-bands, 
frequently with small deep-black spots disposed in pairs; sides of 
head usually dark brown, edged above with a fine whitish line; 
sometimes a white, black-edged, longitudinal streak on each side of 
the neck; belly more or less closely powdered with dark brown. 
Total length 480 millim.; tail 65. 
Ceylon, and Western Ghats of India as far north as Bombay. 
a. 3 (V. 149; C. 48), Ceylon, Sir J. Banks [P.}. 
b. 2 (V. 152; C. 36). Ceylon, R. aaa 
[P.}. 
