294 COLTJBEIDJS. 



deep as broad ; nasals shorter than the frontal, twice to thrice as- 

 long as the suture between the praefrontals ; frontal longer thaa 

 broad, as long as or a little longer than its distance from the 

 rostrai, shorter than the parietals ; one prse- and two postoeulars > 

 a single anterior temporal ; seven upper labials, second largest and. 

 in contact with the prsefrontal, third and fourth entering the eye ; 

 two pairs of chin-shields, in contact with each other. 27 to 29 

 scales round the neck, 41 to 45 round the body ; scales feebly 

 imbricate, keeled, the keels very feeble in the female. Ventrals- 

 very small, smooth in the female, with two tubercles in the male,. 

 372-400. Greyish olive above, yellowish white on the sides and 

 beneath ; neck with dark olive or blackish cross-bars, which become^ 

 very indistinct or disappear on the body. 



Total length 2300 mUlim. ; tail 160. 



Malay Archipelago and North Coast of Australia. 



a-b. 6 (V. 389) <& Malay Archipelago. Dr. Bleeker. 



$ (V. 400). 

 c. ? (V. 372). Queensland. Prof. M. A. Thomson [P.].. 



11. Distira macfarlani. (Plaie XVII. fig. 1.) 



Head moderate ; body moderately elongate. Eostral a little 

 broader than deep ; nasals shorter than the frontal, about thrice as 

 long as the suture between the praefrontals ; frontal once and three- 

 fourths to twice as long as broad, as long as or a little longer than 

 its distance from the end of the snout, shorter than the parietals j 

 one prse- and two postoeulars ; two superposed anterior temporals ; 

 seven or eight upper labials, second largest and in contact with, 

 the prsefrontal, third and fourth entering the eye ; fifth upper 

 labial also entering the eye, if not, with a detached upper portion. 

 forming a subocular ; two pairs of chin-shields, in contact with each 

 other. 31 to 35 scales round the neck, 43 to 45 round the body ; 

 scales feebly imbricate, smooth, or dorsals faintly keeled. Ventrals- 

 very small, 220-256. Whitish, with a dorsal and a ventral series 

 of black rhomboidal transverse spots or cross-bars opposite to each 

 other ; on the neck, the ventral spots are confluent in the middle 

 and unite with the dorsals on both sides ; head black above and 

 beneath, with a yellow spot on the forehead and a yeUow streak. 

 from the eye along the temple. 



Total length 460 millim. ; tail 40. 



Torres Straits. 



a-b. Yg. (V. 256, 220). Murray Id.. '' Eev. S. Macfarlane [0.].. 



12. Distira cyanoclncta. 



Ruseell, Ind. Serp. ii. pi. ix. (1801). 



Hydrophis cyanocinctus, Daud. Hept. vii. p. 883 (1803) ; Peters,. 

 Mon. Berl. Ac. 1872, p. 852, pi. i. fig. 2 ; Fayrer, Thanatoph. Ind, 

 pi. xxiii. (1874) ; Murray, Zool. Sind, p. 391 (1884). 



Leioaelasma striata, Lac^p. Ann. Mus. iv. 1804, pp. 198, 210,, 

 pi. Ivii. fig. 1. 



Enhydris cyanociuctua, Merr. Tent. p. 141 (1820), 



