278 coLUBKiDa:. 



the end of the snout, a little shorter than the parietals ; one prae- 

 and two postooulars ; two superposed anterior temporals; seven- 

 upper labials, third and fourth entering the eye ; two pairs of chin- 

 shields, in contact with each other. 25 to 27 scales round the 

 neck, 35 round the body ; scales rhomboidal and imbricate on the^ 

 neck, hexagonal and juxtaposed on the body, with a tubercle or 

 short keel. Ventrals distinct throughout, 287-316. Black, with 

 yellowish annuli, which are interrupted on the beUy. 



Total length 650 millim. ; tail 60. 



Coasts of India. 



a. Hgr. (V. 287). Bombay. Dr. Leith [P.]. 



d. 6 (V. 316). Vizagapatam. Col. Beddome [0.]- 



11. HydropMs elegans. 



Aturia elegana, Gray, Zool. Misc. p. 63 (1842). 

 Hydrophis doliata, part., Gi-ay, Cat. p. 51 (1849). 



elegans, part., CHinth. Sept. Brit. Ind. p. 369, pi. xxv. fig. W 



(1864). 



Head small ; anterior part of body slender, its diameter two fifths 

 the depth of the posterior part. Eostral broader than deep ; nasals 

 nearly as long as the frontal, more than twice as long as the suture 

 between the prsefrontals ; frontal a little longer than broad, as long, 

 as its distance from the rostral, much shorter than the parietals y 

 one prse- and two postoculars ; a single anterior temporal ; seven 

 upper labials, second largest and in contact with the prssfrontal,. 

 third and fourth entering the eye ; two pairs of chin-shields, 

 posterior in contact with each other or separated by one scale, 

 27 to 30 scales round the neck, 41 to 43 round the body ; scales 

 imbricate, feebly keeled. Ventrals distinct throughout, 350-386. 

 Yellowish white, back with transverse rhomboidal black spots, which 

 may extend downwards to form annuli round the neck ; transverse 

 series of small black spots between the rhombs ; belly with black 

 spots or cross-bars, with or without a black streak running along 

 the ventrals ; head blackish, with a more or less distract light 

 crescentic marking across the snout, from above the eyes. 



Total length 710 milUm. ; tail 60. 



North Coast of Australia. 



a. Tg. (V. 385). Port Essington. Mr. Gilbert [0.]. 



(Type.) 

 h. Hgr. (V. 350). Nicol Bay, N.W. Australia. 



c. Yg. (V. 852). Eockhampton, Queensland. 



12, HydropMs pacificus. (Plate XII. fig. 2.) 



Head small ; body long, very slender anteriorly, the diameter of 

 the neck one third the greatest depth of the body. Eostral as deep as 

 broad ; frontal twice as long as broad, as long as its distance from the 

 rostral, shorter than the parietals ; one prse- and two postooulars ; a 



