DIPSAS. 361 



brown spots, and two other series of smaller spots lower down on 

 the sides ; two blackish bands on the head, diverging posteriorly ; 

 a blackish streak from the eye to the angle of the mouth ; lower 

 parts whitish, marbled or spotted with brown, and with a series of 

 brown spots along each side. 



Total length 2| feet ; tail 6 inches. 



Hob. Burma, Southern China, Siam, Malay Peninsula and 

 Archipelago ; common in Pegu. 



449. Dipsas hexagonotus. 



Dipsas hexagonotus, Blyth, J. A. S. B. xxiv, 1856, p. 360 ; Stoliczka, 

 J. A. S. B. xxxix, 1870, pt. 2, p. 198, pi. xi, fig. 4, and xl, 1871, 

 pt. 2, p. 439 ; Theob. Cat. p. 195. 



Dipsas ochraceus, Giinth. A. M. N. H. (4) i, 1868, p. 425; Theob. J. 

 Linn. Soc. x, 1868, p. 53 ; id. Cat. p. 196. 



Dipsas hexagonata, part., Anders. P. Z. S. 1871, p. 185. 



Anterior palatine teeth scarcely larger than the posterior ; an- 

 terior maudibular teeth considerably larger than the posterior. 

 Eye shorter than the snout. Eostral broader than deep ; inter- 

 nasals a little shorter than the prafrontals ; frontal as long as its 

 distance from the end of the snout, considerably shorter than the 

 parietals ; loreal as long as deep or deeper than long ; one prse- 

 ocular, not reaching the upper surface of the head ; two post- 

 oculars ; temporals 2+3; upper labials 8 (rarely 9), third, fourth, 

 and fifth (or fourth, fifth, and sixth) entering the eye ; 4 or 5 

 lower labials in contact with the anterior chin-shields, which are 

 as long as the posterior or a little shorter. Body strongly 

 compressed ; scales in 19 or 21 rows, disposed obliquely ; scales of 

 the vertebral row strongly enlarged, but longer than broad except 

 on the posterior part of the body. Ventrals 218-250 ; anal 

 entire ; subcaudals 94-140. Dusky grey, reddish, or ochraceous 

 above, uniform or with ill-defined blackish transverse lines ; a 

 more or less distinct brown streak from eye to gape ; lower parts 

 yellow, uniform or clouded with pale brownish in the young. 



Total length 3| feet ; tail 8 inches. 



Hob. Eastern Himalayas (to 4000 feet), Bengal, Burma, 

 Andamans. 



450. Dipsas cyanea. 



Triglyphodon cyaneum, Dum. $ Bibr. Erp. Gen. vii, p. 1079. 

 Dipsas nigromarginata, Blyth, J. A. S. B. xxiii, 1855, p. 294. 

 Dipsas bubalina*, Giinth. Eept. B. I. p. 311, pi. xxiv, fig. E; 

 Stoliczka, J. A. S. B. xl, 1871, pt. 2, p. 441 ; Theob. Cat. p. 197. 



Anterior palatine teeth scarcely larger than the posterior ; 

 anterior mandibular teeth considerably larger than the posterior. 

 Eye shorter than the snout ; rostral nearly as deep as broad ; 

 internasals a little shorter than the prsefrontals ; frontal as long as 



* This specific name, derived from Klein, Tent. Herp. p. 21, 1755, is inad- 

 missible, and its application to the present snake is doubtful. 



