A MONOGRAPH OF THE SHA-SNAKES (HYDROPHIIN). 233 
Distira ornata, Wall in Proc. Zool. Soc. Lond., 1903, pp. 95 and Iot. 
Wallin Mem. As. Soc. Bengal, 1906, p. 289, and Sphol. Zeylan., 
August, 1907, p. 168. 
,, andamanica, Annandale in Journ. As. Soc. Bengal, 1905, p. 194. 
? Hydrophis godeffroyi, Peters in Mon. Berl. Acad., 1872, p. 856, pl. 1, fig. 3. 
a ¥ Boulgr., Cat., 1896, ili, p. 291. 
? i pachycercos, Fischer in Abhandl. Nat. Hamb., iii, 1856, pl. ii, and p. 44. 
pachycercus, Giinther, loc cit., p. 378. 
Jan, loc. cit., 39, pl. vi. 
os Ss Boulgr., Cat., iii, p- 297. 
3. frontalis, Boulgr., Cat., ili, p. 275 (non Jan). 
Hydrophis ocellata, Gray, Cat., p. 53, in part. 
‘4 ir Giinther, Rept. Brit. Ind., 1864, p. 378, in part. 
Distira ornata, Boulgr., Cat , 1896, ili, p. 290, in part. 
Fig. 46.—Distira ornata (x 13). 
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I have examined 36 specimens exclusive of those I consider should be absorbed 
under this title. 
It is, I consider, well marked off from the other species. Thus it is one of the 
few that have no marginal scales. The only other species that are so distinguished 
are cantoris, gracilis and jerdont, all of which are too well differentiated to be confused. 
One specimen referred by Mr. Boulenger to this species, vzz., the one presented 
by Lord Derby to the British Museum and originally described by Gray! as a distinct 
species under the name ocellata, has, I consider, such well marked characters, that I 
take the same view as Gray, supported by Giinther. I refer to it again under the 
title H. ocellata. 
Fig. 47.—Hydrophis godeffroyi. Atter Peters, Mon. Berl. Acad., 1872, pl. 1, fig. 3. 
1 Catalogue, 1849, p. 53. 2 Rept. Brit. Ind., 1864, p. 378, plate xxv, fig. P. 
