224: MAJOR F. WALL, I.M.S., C.M.Z.S. 
(b) No costal spots. A common form seen in examples from the Persian Gulf 
to China. Comparable to variety A(6) of spiraiis. 
E. A continuous, black, dorsal band (see fig. 35 on plate viii), a rare form—the 
phipsont of Murray known from a single specimen from Bombay. Completely 
analogous to variety imornata of ornata, and qavakari of viperina. ; 
Habitat.— From Persian Gulf to North Australia. With the exception of two 
evandis, none that I-have seen are from the Malayan Archipelago. 
DISTIRA NIGROCINCTA (Daudin, nec Jan, nec Cantor). 
Hydrophis nigrocinctus, Daud., Rept., 1803, vii, p. 380. 
? Schlegel, Phys. Serp., 1837, xviii, figs. 11 and 12. 
Gray, Cat., 1849, p. 51. 
Gtinther, Rept. Brit. Ind., 1864, p. 368, pl. xxv, fig. L.. 
Fayrer, Thanatoph. Ind., 1874, pl. xxv. 
Ewart, Pois. Snakes Ind., 1878, pl. 19, fig. 2. 
Boulgr. in Blanford, Fauna Brit. Ind. Rept. and Batrach., 
1890, p. 400. 
~ Sclater, List Snakes Ind. Mus., 1891, p. 63, Nos. 8239 
gnd 8240. 
7 - Boulgr., Cat. Brit. Mus., 1896, iii, p. 277. 
a Ms Wallin Mem. As. Soc. Bengal, 1906, p. 281. 
? Enhydris nigrocinctus, Merrem., Tent., 1820, p. 140. 
Distira lapemidoides, Sclater, List Snakes Ind. Mus., 1891, p. 66, No. 8235. 
,, cyanocincta, Wall and Evans in Journ. Bomb. Nat. Hist. Soc., xiii, p. 364. 
,, hendersonii, Boulgr. in Journ. Bomb. Nat. Hist. Soc., xiv, p. 719, and 
plate. 
‘S a Wallin Mem. As. Soc. Bengal, 1906, p. 294. 
5 - saravacensis, boulgr. in Proc. Zool. Soc. Lond., tgo0, p. 184, 
and fig. 2, pl. xiv. 
Fig. 39.—Distiva nigrocincta. After Giinther, Rept. Brit. Ind., pl. xxv, fig. L. 
I have examined eight examples, not including the Distira hendersonii (Boulenger), 
which I consider the same species. 
One of General Hardwicke’s specimens in the British Museum, labelled nigrocinctus, 
I consider misplaced. It is in reality a cyanocincta (Daudin). In Bleeker’s specimen 
I could distinctly discern grooves in the post-maxillary teeth, and it agrees, therefore, 
in this respect, with examples I have examined in the Indian Museum and my own 
