224 COLUBRID, 
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-c. 2 (V. 150, 150,152; Khasi Hills, T. C. Jerdon, Esq. [ P.}. = 
C. 96, ?, 80). : 
a. Yg.' (V. 164; ©. Khasi Hills, Sir J. Hooker (P]. (3 
100). - 
23. Tropidonotus trianguligerus. 
Tropidonotus pang anigcens, Boie, Isis, 1827, p. 535; Schleg. Phys. 
Serp. ii, p. 311, pl. xii. figs. 1-8 (1837); Dum. § Bibr. vii. p. 590 
(1854) ; Giinth. Cat. p. 70 (1858), and Rept. Brit. Ind. p. 261 
(1864) ; Jan, Arch. Zool. Anat. Phys. iii. 1865, p. 225, and Icon. 
Gén, 27, pl. ii. figs. 2 & 8 (1868); Fischer, Arch. f. Nat. 1882, 
p- 282; Anders. Journ. Linn. Soc. xxi. 1889, p. 345. 
—— umbratus, part., Cantor, Cat. Mal. Rept. p. 89 (1847). 
—— junceus, (non Cant.) Girard, U.S. Explor. Exped., Herp, 145, 
pl. xiii. fig. 1 (1858). 
? Tropidonotus bellulus, Stoliezka, Journ. As. Soc. Beng: xl. 1871, 
p- 432, pl. xxvi. fig. 2. 
Tropidonotus trianguligerus, var. annularis, Fischer, Arch. f. Nat.. 
1885, p. 55. 
Eye moderate. Rostral nearly twice as broad as deep, scarcely 
visible from above; internasals longer than broad, trapezoid, as 
long as or longer than the prefrontals ; 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) pre- and three or four 
postoculars ; temporals 24+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. 
a. go (V. 142; C. ?). Pinang. Dr. A. Giinther Gey 
b,e,d. 2 (V. 186; C. ?) Singapore. Gen. Hardwicke [P), 
&her. d (V. 136, 140; 
C. 67, ?). 
dim, 
AO SAO et ea. 
DA be 
