276 COLtrBKLD^. 



round the neck, 48 to 50 round the body; scales rhomboidal, 

 imbricate, witb a strong short keel. Ventrals distinct throughout, 

 285-309. Grey above, with black cross-bands, broadest on the 

 back, which form complete rings or are interrupted on the belly ;, 

 head uniform black. 



Total length 665 miUim. ; tail 75. 



Bombay Coast, Bay of Bengal, Straits of Malacca. 



a. S (V. 294). Bombay. Dr. Leith [P.]. 



h. S (V. 298). Vizagapatam. Dr. P. Russell [P.], 



(Type-) 



c. $ (V. 285). Bengal. Gen. Hardwicke [P.], 



d. $ (V. 294). Bengal. 



e. S (v. 293). Pinang. Dr. Cantor. 

 /,^-A. ? (V. 309, 285) ? Zoological Society. 



& hgr. (V. 300). 



7. HydropMs frontalis. 



Hydrophis frontalis, Jan, Uknco, p. 110 (1863), and Icon. Gin. 39, 

 pi. V. fig. 2 (1872). 



Head very small ; anterior part of body very slender, its diameter 

 one third the depth of the posterior part. Eostral broader than 

 deep ; frontal longer than broad, as long as its distance from the 

 end of the snout, a little shorter than the parietals, its point separat- 

 ing the prsBfrontals ; one prse- and one postocular ; two superposed 

 anterior temporals ; seven upper labials, third and fourth entering 

 the eye ; chin-shields very small, posterior separated by scales. 

 34 scales round the neck, 42 round the body ; scales rhomboidal, 

 imbricate, with a strong short keel. Ventrals 291. Whitish, with 

 olive-grey cross-bars, broad on the back, tapering towards the 

 belly ; head blackish, with a yellow streak above and behind the 

 eye. 



Total length 560 millim. ; tail 70. 



Indian Ocean. 



a. J (V. 291). ? Zoological Society, 



8. HydropMs kingii. 



Disteira doliata {ncm LaoSp.'), Gray in King, Narr. Surv. Austral, ii. 



p. 432 (1827). 

 Hydrophis doliata, part., Gray, Cat. p. 51 (1849). 

 elegans, part., Giinth. Sept. Brit. Ind. p. 369 (1864). 



Head small ; anterior portion of body slender, its diameter one 

 third the depth of the posterior part. Eostral as deep as broad ; 

 nasals shorter than the frontal, thrice as long as the suture between 

 the prsef rentals ; frontal nearly twice as long as broad, as long as 

 its diLtance from the end of the snout, as long as the parietals ; one 

 prse- and two postoculars ; seven upper labials, second largest and 

 in contact with the prsefrontal, third and fourth entering the eye, 

 fifth separated from the eye by a subocular ; posterior chin-shields 

 separated by a large scale. 27 scales round the neck, 37 round the 



