224 COLl'IiRID^. 



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 snbcaudals 

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

 each side. 



Total length 600 millim. ; tail 190. 



Khasi Hills, Assam. 



a-c. 2 (V. 150, 150, 152 ; Khasi Hills. T. C. Jerdon,E^ri. [P.]. ) q 

 C. 06, ?, 80). I -^ 



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

 100). j -^ 



23. Tropidonotus trianguligerus. 



Tropidonotus trianguligerus, Boie, Isis, 1827, p. 535 ; Schlep. P/n/-i. 

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

 (1854); Gilnth. Cat. p. ^70 (1858), and Eept. Brit. Ind. p. 201 

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

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

 p. 282 ; A7iders. Journ. Linn. Soc. xxi. 1889, p. 345. 



umbratus, part.. Cantor, Cat. Mai. Be/d. p. 89 (1847). 



junceus, {noji Caiit.) Glrard, U.S. Bxjjlor. Exped., Herp.Wo, 



pi. xiii. fig. 1 (1858). 



? Tropidonotus bellulus, Stollczlri, Jourfi. As. Soc. Beng. xl. 1871, 

 p. 432, pi. xxvi. fig. 2. 



Tropidonotus trianguligerus, var. annularis, Fischer, Arch. f. JS'at. 

 1885, p. 55. 



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

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

 long as or longer than the pra^frontals ; 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) prae- and three or four 

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

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

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

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

 rows. Ventrals 134-147 ; anal divided ; subcaudals (37-94. Dark 

 olive above, with small black: spots ; usually a lateral scries 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 vellowish, uniform or the shields edged with black. 



Total length 1200 millim. ; tail 340. 



Southern Burma, Malay Peninsula, Sumatra, Eorueo, Java, 

 Ternate. 



a. J (V. 142 ; C. ?). Piuang. Dr. A. Giintlier [P.]. 



b, c, d. 5 (V. 136 ; C. ?) Singapore. Gen. Hardwicke [PL 

 & hgr. d" CV. 136, 140 ; 



C. 67, F). 



