209. DISTIRA. 289: 
a. 3 (V. 250). Mekran Coast. Capt. E. Bishop [C.]. 
(Type of H. guttata.) 
b. 2 (V. 240). Singapore. (Type of H. annulatus.) 
c. d (V. 256). Singapore. Haslar Collection. 
d. 9 (V. 235.) Indian Ocean. (One of the types of H. major.) 
e. d (V. 249). Indian Ocean. 
f. 2 CV. 267). Coast of Australia, Capt. Stokes [P.]. 
g-3 ty’ 240), Coast of Australia. Capt. Drevar [C.]. 
h. Ad., skin. Port Walcott, Capt. Beckett | P.]. 
N.W. Australia. 
t,k. Hgr. (V. 260) & yg. Port Essington. Lord Derby [P.]. 
(V. 230). 
ee : Ad., skin. Torres Straits. Br Perry, Esq. 
m. Skull, Holothuria Bank, J.J. Walker, Esq. [P.]. 
N.W. Australia, 
2. Distira major. 
Hydrus major, part., Shaw, Zool. iii. p. 558, pl. exxiv. (1802). 
Disteira doliata, Lacép. Ann. Mus. iv. 1804, pp. 199 & 210, pl. lvii. 
fig. 2; Dum. §& Bibr. vii. p. 1831 (1854) ; Ginth. Rept. Brit. Ind. 
. 859 (1864). 
Pelamis shavii, Merr. Tent. p. 189 (1820). 
Hydrophis mentalis, Gray, Zool. Misc. p. 62 (1842), and Cat, p. 53: 
(1849). 
Disteira dumerilii, Jan, Rev. § Mag. Zool. 1859, p. 149; Cope, Proc. 
Ac. Philad. 1859, p. 347; Jan, Icon. Gén. 39, pl. iv. (1872). 
Hydrophis protervus, Jan, 1. c, p. 150, and Prodr. pl. D (1859) ; 
Bavay, Mém. Soc. Linn. Norm. xv. no. 5, 1869, p. 36. 
lacepedei, Jan, Prodr. pl. D. 
—— major, Giinth. 1. c. p. 363, pl. xxv. fig. G. 
Hydrophis, sp., Forné, Note Serp. Mer, Nowmea, p. 6, pl. —. figs. 1-5: 
1882). 
Distiva major, Bouleng. Faun. Ind., Rept. p. 407 (1890). 
Head moderate; body stout. Rostral as deep as broad; nasals. 
shorter than the frontal, more than twice as long as the suture 
between the preefrontals ; frontal longer than broad, as long as its 
distance from the end of the snout ; one pre- and one or two post- 
oculars ; two superposed anterior temporals; seven or eight upper 
labials, third and fourth entering the eye; one pair of small chin- 
shields. 31 to 36 scales round the neck, 36 to 41 round the body; 
scales keeled, imbricate, strongly on the neck, feebly on the body. 
Ventrals distinct, but very small, smooth or bicarinate, 200-236. 
Yellowish or pale brownish above, regularly barred with blackish or 
with alternately broad and narrow dark bars; white beneath, with 
or without small dark brown spots. 
Total length 1050 millim.; tail 120. 
North Coast of Australia to New Caledonia. 
a. d (V. 236). Indian Ocean. (One of the types of H. major, 
Type of H. mentalis.) 
b. Yg. (V. 215). Nicol Bay, N.W. Australia. Mr. Duboulay [C.]. 
VoL, III. U 
