■ 13 



224 COLUBKIDiE. 



middle and dark brown on the. borders ; an oblique yellow streak 

 edged with dark brown on each side of the nape, forming the con- 

 tinuation of the series of yellow labial spots ; ventrals and subcaudals 

 yellowish, with an interrupted brown streak or series of spots along 

 each side. 



Total length 600 millim. ; tail 190. 



Khasi Hills, Assam. 



a-o. 2 (V. 150, 150, 152 ; Khasi Hills. T. C. Jerdon,E8q. [P.!. 



0. 96, ?, 80). 

 d. Yg. (V. 154 ; C. Khasi Hills. Sir J. Hooker [P.]. - 



100). j ■_ 



23. Tropidonotus triangullgerus. 



Tropidonotus trianguligerus, Bote, Ista, 1827, p. 535 ; Schlep. Phys. 

 Serp. ii. p. 311, pi. xii. figs. 1-3 (1837) ; Bum. ^ Bihr. vii. p. 590 

 (1854) ; Gunth. Oat. p. 70 (1858), and Rept. Brit. Ind. p. 261 

 (1864) ; Jan, Arch. Zool. Anat. Phys. iii. 1865, p. 225, and Icon. 

 Gen. 27, pi. ii. figs. 2 & 3 (1868); Fischer, Arch.f. Nat. 1882, 

 p. 282 ; Anders, journ. Linn. Soc. xxi. 1889, p. 345. 



umbratus, part., Cantor, Cat. Mai. Jiept. p. 89 (1847). 



jimceus, (non Cant.) Girard, U.S. Explor. lixped., Herp.ViS, 



pi. xiii. fig. 1 (1858). 



? Tropidonotus bellulus, Stoliczka, Journ. As. Soc. Beng. xl. 1871, 

 p. 432, pi. xxvi. iig. 2. 



Tropidonotus trianguligerus. Tar. annularis, Fischer, Arch. f. Nat. 

 1885, p. 55. 



Eye moderate. Eostral nearly twice as broad as deep, scarcely 

 visible from above ; internasals longer than broad, trapezoid, as 

 long as or longer than the prsefrontals ; frontal once and a half to 

 once and three fourths as long as broad, as long as its distance from 

 the end of the snout, a little shorter than the parietals ; loreal as 

 long as deep or deeper ; one (rarely two) pras- and three or four 

 postooulars ; temporals 2 + 2 or 2 + 3; nine upper labials, fourth, 

 fifth, and sixth entering the eye ; five lower labials in contact with 

 the anterior chin-shields, which are shorter than the posterior. 

 Scales strongly keeled, of outer row smooth or feebly keeled, in 19 

 rows. Ventrals 134-147 ; anal divided ; subcaudals 67-94. Dark 

 olive above, with small black spots ; usually a lateral series of large 

 triangular black spots, with the points extending down to the 

 ventrals, separated by red interspaces ; these markings becoming 

 indistinct or disappearing on the posterior half of the body ; in some 

 specimens (var. annularis, Fisch.) the black lateral spots extend as 

 bands across the belly ; upper labials yellowish, with black sutures ; 

 lower parts yellowish, uniform or the shields edged with black. 



Total length 1200 millim. ; tail 340. 



Southern Burma, Malay Peninsula, Sumatra, Borneo, Java, 

 Ternate. 



c. d (V. 142; 0. F). Pinang. Dr. A. Giinther [P.l. 



b, c, d. ? (V. 136 ; 0. ?) Singapore. Gen. Hardwicke rPl. 



&hgr. cJ (V. 186,140; 



C. 67, ?). 



