208. HTDEOPHIS. 279 



single, large anterior temporal ; seven or eight upper labials, second 

 largest and in contact with the prsefrontal, third, fourth, and fifth 

 entering the eye ; two pairs of small chin-shields, in contact with 

 each other. 27 to 29 scales round the neck, 37 to 39 round the 

 body; scales imbricate or subimbricate, with a feeble short keel. 

 Ventrals feebly enlarged, 310. Greyish olive above, white beneath, 

 with 51 dark annuli. 



Total length 940 millim. ; tail 100. 



New Britain. 



a. 6 (V. 310). New Britain. Museum Godefl&oy. 



13. HydropMs latifasciatus. (Piate XIII.) 



Hydrophis latifasciata, OUnth. JRept. Brit. Ind. p. 372, pi. xxv. fig. T 

 (1864) ; Blanf. Joum. As. Soc. Beng. xlviii. 1879, p. 132 ; Boideng. 

 Faun. Ind., Bept. p. 401 (1890). 



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

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

 deep ; nasals slightly longer than the frontal, more than twice as 

 long as the suture between the prsefrontals; frontal small, longer than 

 broad, much shorter than the parietals or than its distance from the 

 rostral ; one prae- and one postocular ; praefrontal in contact with 

 the second labial ; a single large anterior temporal ; six upper 

 labials, second largest, third and fourth entering the eye ; two pairs 

 of chin-shields, posterior separated by scales ; 21 scales round the 

 neck, 33 round the body ; scales imbricate and keeled. Ventrals 

 distinct, but feebly enlarged, 322. Dark olive, sides with vertical 

 yellowish bars ; these bars continuous across the neck. 



Total length 720 millim. ; tail 75. 



Mergui; Pegu. 



o. $ (V. 322). Mergui. Prof. Oldham [P.]. (Type.) 



14. HydropMs coronatus. 



Hydrophis fasciata, part., Gray, Cat. p. 50 (1849). 



coronata, Qunth. Bspt. Brit. Ind. p. 372, pi. xxv. fig. M (1864) ; 



Anders. Proc. Zool. Soc. 1871, p. 192 ; Fayrer, Thanatoph. Ind. 



pi. xxvi. (1874) ; Boulmg. Faun. Ind., Bept. p. 402 (1890). 



Head very small, narrow ; body long, extremely slender ante- 

 riorly. Eostral broader than deep ; frontal small, a little longer 

 than broad, hardly as long as its distance from the rostral ; one prse- 

 and one postocular ; a single anterior temporal, descending to the 

 labial border ; six upper labials, third and fourth entering the eye ; 

 two pairs of chin-shields, in contact with each other. 19 to 23 

 scales round the neck, 29 to 33 round the body ; all the scales 

 rhomboidal and imbricate, dorsals with a keel, laterals with a central 

 tubercle. Ventrals hardly distinct, 278-337. Head and neck 

 blackish or dark green, the former with a horseshoe-shaped yellow 

 mark above, the convexity on the snout, the latter with regular 



