282 



COLTJBBID^. 



Hydrophis fasciatus, Peters, Mm. Berl. Ac. 1872, p. 849, pi. i. fig. 1 ,- 

 Boideng. Faun. Ind., Rept. p. 404 (1890) ; Boettg. Ber. Offenb. 

 Ver. Nat. 1892, pp. 89 & 156. 



Head very small ; body long, very slender anteriorly. Eostral 

 nearly as deep as broad ; frontal longer than broad, as long as its 

 distance from the rostral ; one prae- and one or two postoculars ; a 

 single anterior temporal, followed by a second equally large ; six or 

 seven upper labials, third and fourth entering the eye, second largest 

 and usually in contact with the prefrontal ; two pairs of small chin- 

 shields, in contact with each other. 25 to 31 scales round the neck, 

 40 to 48 round the body ; all the scales rhomboidal and imbricate, 

 or scales subimbricate or juxtaposed on the posterior part of the 

 body, on the neck smooth, on the body with a small tubercle or 

 short keel. Ventrals feebly enlarged, 345—500. Head and neck 

 black, the latter with yellowish cross-bands ; body pale, with black 

 cross-bands or annuli, which are broadest on the back. 



Total length 1000 millim. ; tail 85. 



Prom the coasts of India to China and New Guinea. 



a. J (V. 402). Malabar. 



i. $(V. 447). Madras. T. 0. Jerdon, Esq. [P.> 



c. d' (V. 364). Siam. (Type oi H. atriceps.) 



d. ? (V.412). Siam. 



e. Yg. (V. 452). China. W. Lindsay, Esq. [P.], 



(Type of A. lindaayi.) 



f. Yg. (V. 430). Pinang. Dr. Cantor. 

 g-h. Yg. (V. 370, Malay Archipelago. Dr. Bleeker. 



i. $ (V. 500). East Indies. T. C. Eyton, Esq. [P.], 



h-l. Hgr. (V. 435) East Indies. East India Company 



& yg. (V. 458). [P.]. 



m. $ (V. 426). ? Haslar Collection. 



«. d(V. 353). ? Dr. Giinther [P.]. 



(Type of S. atriceps.y 



18. Hydrophis brookii. 

 Hydrophis brookii, Gunth. Proc. Zool. Soc. 1872, p. 697, fig. 



Head very small ; body long, extremely slender anteriorly, 

 Eostral a little broader than deep; frontal slightly longer than 

 broad, as long as its distance from the end of the snout, much 

 shorter than the parietals ; one prse- and one postocular ; a single 

 anterior temporal, followed by a second equally large ; six upper 

 labials, third and fourth entering the eye, second largest and in 

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

 contact with each other. 30 scales round the neck, 42 round the 

 body ; aU the scales rhomboidal and imbricate, on the neck smooth, 

 on the body with a small tubercle or short keel. Ventrals feebly 

 enlarged, 416. Head and anterior part of body black, the former 

 with a horseshoe-shaped yellowish marking on the head, the latter 

 with yellow rings, the anterior of which are interrupted below ;. 



