212, AIPYSURUS. 303 
‘bands are usually less distinct, some specimens being uniform dark 
grey above ; sides and lower parts whitish. 
Total length 1300 millim.; tail 190. 
From the Persian Gulf along the coasts of India and Burma to 
the Malay Archipelago and Papuasia. 
a-b. 3 (V. 310) & 2 Muscat. A. §. G. Jayakar, Esq. 
(V. 268). [P.]. 
o-d. & (V. 268) & @ Kurrachee. Kurrachee Museum 
(V. 250). Se 
fee = . 256) & yg. Malabar. Col. Beddome [C.]. 
. 260). 
g: 2 (V. 297). Malabar. 
h. & (V. 268). W. Ceylon. K. Both, Esq. {I 
t,k. 9 (V. 248, 255). Madras. T. C. Jerdon, Esq. [P.]. 
Beas (V. 240) & yg. Sandheads, Bengal. Sir J. Fayrer (Pt 
. 238). 
n. » (V. 255). Bengal. Gen. Hardwicke [P.]. 
- (Type of Z. bengalensis:) 
o. 2 (V. 249), Bengal. Gen. Hardwicke [P.}. 
p. Hgr. (V. 239). India. Gen. Hardwicke Py 
gq. & (V. 235). Mergui. Prof. Oldham [P. ]. 
r-s. og (V. 280) & Q Mergui. Dr. J. Anderson [ P.]. 
(V. 240). 
t. 9 (V. 286). Pinang. Dr. Cantor. 
u. do (V. 254). Siam. Wey Newman, Esq. 
v, Y (V. 230). Malay Archipelago. Dr. Bleeker. 
w. Yg. (V. 238). S. coast of New J.B. Jukes, Esq. [P.]. 
Guinea. 
x. 2 skeleton. Madras. F. Day, Esq. [P.]. 
212, AIPYSURUS. 
Aipysurus, Lacép. Ann. Mus. iv. 1804, p. 197; Dum. §& Bibr. Erp. 
Gén. vil. p. 1823 (1854); Fischer, Abh. Naturw. Hamb. iii. 1856, 
p. 31; Jan, Elenco sist. Ofid. p. 108 (1863) ; Giinth. Rept. Brit. 
Ind. p.: 357 (1864). 
Stephanohydra, Tschudi, Arch. f. Nat. 1837, p. 38381; Gray, Cat. 
Sn. p. 59 (1849). 
Hydrophis, part., Schleg. Phys. Serp. ii. p. 488 (1887). 
Hypotropis, Gray, Ann. §& Mag. N. H. xviii. 1846, p. 284, 
Tomogaster, Gray, Cat. p. 59. 
Thalassophis, part., Schmidt, Abh. Naturw. Hamb. ii. 1852, p. 75. 
Emydocephalus, Krefft, Proc. Zool. Soc. 1869, p. 321. 
Pelagophis, Peters § Doria, Ann. Mus. Genova, xiii. 1878, p. 413. 
Maxillary a little longer than the ectopterygoid, extending for- 
wards beyond the palatine; poison-fangs moderate, followed, after 
a short interspace, by 8 to 10 grooved teeth; anterior mandibular 
teeth feebly grooved. Snout short; nostrils superior ; head-shields 
large or broken up into scales; nasals in contact with each other. 
Body moderate; scales imbricate; ventrals large, keeled in the 
middle. ; | 
Malay Archipelago and Western Tropical Pacific Ocean. 
As in Distira, the prefrontal nearly reaches the postfrontal. 
