292 COLUBRID. * 
6. Distira semperi. 
Hydrophis semperi, Garm. Bull, Mus. Comp. Zool, viii. 1881, p. 85. 
' Rostral nearly as deep as broad ; nasal grooved from the nostril’ 
to the second labial ; frontal little less than twice as long as broad; 
one pre- and two postoculars; a single, large anterior temporal ; 
eight upper labials, third, fourth, and fifth entering the eye; two 
pairs of chin-shields, anterior larger. Scales smooth, imbricate,. 
38 round the middle of the body. Ventrals small, 329, Black, 
crossed by 57 narrow white bands which do not meet on the belly. 
Lake Taal, Luzon. 
Perhaps specifically identical with the preceding. 
7. Distira subcincta. 
Hydrophis subcinctus, Gray, Zool. Mise. p. 63 (1842), and Cat. p. 52° 
(1849) ; Giinth. Rept. Brit. Ind. p. 368, pl. xxv. fig. F (1864). 
Head small; body much elongate; neck slender, its diameter 
about one third the greatest depth of the body. Rostral broader 
than deep; nasals as long as the frontal, more than twice as long 
as the suture between the prefrontals; frontal much longer than 
broad, hardly as long as its distance from the rostral, much shorter 
than the parietals; one pre- and two postoculars; a single, large 
anterior temporal, descending nearly to the border of the mouth ; 
seven upper labials, second largest, third and fourth entering the 
eye; two pairs of chin-shields, in contact with each other. 23 to 
25 scales round the neck, 35 round the body; scales feebly imbri- 
cate, feebly keeled. Ventrals very distinct, 342, “Trunk with 41 
broad dark cross-bands, about as broad as the interspaces, not 
extending downwards to the middle of the side; a series of small,. 
roundish, blackish spots along the lower part of the sides.” 
Total length 1070 millim, ; tail 100. 
Indian Ocean. 
a. 2 (V. 342), Indian Ocean. (Type. y 
8. Distira brugmansii. 
Hydrophis brugmansii, Bote, Isis, 1827, p. 554. 
—— nigrocincta, part., Schleg. Phys. Serp. ii. p. 506, pl. xviii-. 
figs. 8-10 (1837). | | 
— sublevis, Gray, Zool, Misc. p. 62 (1842). 
Hydrus striatus, part., Cantor, Cat. Mal. Rept. p. 126 (1847), 
Hydrophis sublevis, part., Gray, Cat. p. 52 (1849). 
“qes8es 48 a (non Daud.), Fischer, Abh. Naturw. Hamb, iii. 
1856, p. 46, pl. i. 
—— cyanocincta, part., Giinth. Rept. Brit. Ind. p. 367 (1864). 
—— robusta, Giinth. 1. c. p. 364; Fayrer, Thanatoph. Ind, pl. xxi. 
(1874); Murray, Zool. Sind, p. 894 (1884) ; Anders, Journ. Linn. 
Soc. xxi. 1889, P. 347. 
—— rappii, Jan, Icon. Gén. 41, pl. iv. fig. 1 (1872). 
— temporalis, Blanf. Proe. Zool, Soe, 1881, p- 680, fig. 
—— bishopii, Murray, 7. ec. p. a — 
Distira robusta, Bouleng. Faun. Ind., Rept. p. 409 (1890). 
