209. DISTIRA. 291 



i. d (V. 275). Holothuria Bank, N.W. J. J. Walker, Esq. [P.]. 



Australia. 

 k. Hgr. (V. 290). Australia. J. Maegillivray, Esq. 



rO.];LordDerby[P.j. 

 (Type of H. ocellata.) 

 I. ? (V. 274). AustraUa. J. Barnes, Esq. [P.]. 



m, n-o. cJ (V. 280) ? CoUege of Surgeons. 



& yg. (V. 228, 

 215). 

 J). Yg. (V. 210). ? 



4. Distira godeflfroyi. 



HydropHs godeflfroyi, Peters, Mm. Berl. Ac. 1872, p. 856, pi. i. 

 fig. 3. 



Head moderate ; body stout. Eostral bfoader than deep ; nasals 

 ■shorter than the frontal, twice as long as the suture between the 

 prsefrontals ; frontal longer than broad, as long as its distance from 

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

 -oculars ; two superposed anterior temporals ; seven upper labials, 

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

 posterior separated by a pair of scales. 28 to 33 scales round the 

 ■neck, 38 to 43 round the body ; scales subimbricate on the neck, 

 juxtaposed on the body, with a tubercle or short keel, which is very 

 •strong in the male. Venfcrals distinct, bituberculate, 238-294, 

 Yellowish or pale brown above, yellowish white beneath, with broad 

 l)lackish cross-bars narrowing on the sides and encircling or nearly 

 -encircling the body ; head dark olive above. 



Total length 740 millim. ; tail 85. 



Kingsmill Islands. 



■c-J. S (V. 238) & $ (.V. 249). P Dr. J. G. Fischer. 



5. Distira melanosoma. 



Hydrophis melanosoma, Qunih. Rept. Brit. Ind. p. 367, pi. xxv. 

 fig. E (1864). 



Head rather small and short ; body elongate. Eostral a little 

 l)roader than deep ; nasals shorter than the frontal, twice as long as 

 the suture between the prsefrontals ; frontal much longer than broad, 

 as long as its distance from the rostral, shorter than the parietals ; 

 ■one prse- and one postocular ; a single large anterior temporal ; 

 seven upper labials, second largest and in contact with the prae- 

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

 shields, the posterior separated by a pair of scales. 27 scales round 

 the neck, 38 round the body ; scales imbricate, strongly keeled. 

 Ventrals distinct throughout, bicarinate, 335. Black above, with 

 •66 narrow light rings, more or less interrupted, on the belly, greenish 

 beneath, bright yellow on the sides. 



Total length 1250 millim. ; tail 130. 



Habitat unknown. 



■a. ? . (V. 335). ? CoUege of Surgeons [E.]. 



(Type.) 

 tt2 



