94 AUSTRALIAN SNAKES. 



Dumeuil's Sea Snake. Disteira doUata. 



Disteira doliata, Lacep. Ann. Mus. IV., p. 199, pi. 57, fig. 2. Dim. 4' Bihr., Erpetol 

 gen. VII, p. 1331. 



D. dumerillii, Jan. Iconogr., Bescript. in Bev. et Mag. Zool., 1859. 

 D. doliata, Giinther, Beptiles of Brit. India, p. 359. 



Scales in 39 or 41 rows. 

 Abdominals, 234. 

 Total length, 33 inches. 



One postocular ; scales with a short central keel ; ventrals bicarnate. 

 Back with broad brownish cross bands, the interspaces of the light ground 

 colour being again divided by narrow brownish transverse streaks, at least 

 on the anterior part of the trunk. 



Only the typical specimen of this species is known ; no record of 

 the locality where it was obtained has been preserved. 



^Oj^IilTPTTJS, Bum. Sf Bihr. 



Posterior half of the trunk compressed, of moderate length. Head 

 covered with scales above, the snout and superciliary region only being 

 shielded. Scales imbricate ; ventral shields none. 



Bibron's Sea Snake. Acalyptus superciliosus. 



Acalyptus superciliosus. Bum. S{ Bihr. VII, p. 1310, Gilnfker, Bept. of Brit. India, p. 359. 



Scales in 23 rows. 



Abdominals ? 



Total length, 26 inches. 



Head small, scarcely longer than broad ; body of moderate length, 

 with the anterior portion rather slender. Two labials below the orbit ; 

 two postoculars. Nasals forming a suture together ; a pair of frontals as 

 large as the nasals ; the nostrils are between the nasals and frontals ; twenty- 

 three series of scales round the neck ; scales slightly imbricate, each with 

 a more or less prominent short keel. Trunk with twenty-two black cross 

 bands, tapering on the belly, and about half as broad as the interspaces ; 

 each interspace with a faint greyish cross band. Belly with narrow 

 blackish transverse bands, alternating with those descending from the 

 back. 



Habitat, South Western Pacific. 



