298 COLUBRID. 
from above ; suture between the internasals very short ; prefrontal 
usually single ; frontal longer than its distance from the end of the 
snout, two thirds or three fourths the length of the parietals ; 
loreal longer than deep; one pre- and one postocular; temporals 
1+2; six upper labials, third and fourth entering the eye, first 
smallest, sixth largest ; four lower labials in contact with the ante- — 
rior chin-shields ; posterior chin-shields small. Scales in 13 rows; __ 
those on the sides of the anal and basicaudal regions obtusely keeled =» 
in the male. Ventrals 150-162; anal divided; subcaudals 33-42. 
Dark brown or black above and below, with or without more or less 
indistinct lighter longitudinal streaks above. 
Total length 510 millim.; tail 60, 
Eastern Himalayas; Khasi Hills ; Rangoon? 
a,b-c. § (V.151; 0.39)& Q Nepal. B. H. Hodgson, Esq. 
” (V. 160, 158; G. 36, 36). "i (Pl. aa 
a (V. 162, 155; C. 34, = Nepal. E. India Comp. [P.). 
f. & (V. 154; ©. 42). Sikkim. Sir J. Hooker [P.. 
( of 7. rugosum.) 
g. 2 (V. 160; C. 37). Sikkim, essts. V. in- 
k. 2 (V. 161; ©. 88) & Darjeelin TO donde Esq 
h-k. 9 (V. oO. yg. arjeeling. . C. Jerdon, ‘ 
(V. 158, 159; ©. 36, 87). of 
l. g (V. 150; 0. 89). Darjeeling. .'T. Blanford, Esq. 
m-p. 3 (V. 158; C. 38), 2 Darjeeling. Col. Beddome [C.]. 
. 162; C. 36), and yg. (9 
(V. 159, 158) ; C. 35, 39). 
q. Hgr. d (V. 150; C. 41). Khasi Hills. * Pj Jerdon, Esq. 
2. Trachischium guentheri. (Prater XIX. fig. 1.) 
Trachischium obscuro-striatum (non Blyth), Giinth. Proc. Zool. Soc, 
1860, p. 161. 
— guentheri, Bouleng. Faun. Ind., Rept. p. 285 (1890). 
Rostral as broad as deep or a little deeper than broad, visible 
from above; suture between the internasals very short; pre- 
frontal usually single; frontal longer than its distance from the 
end of the snout, two thirds the length of the parietals ; loreal 
longer than deep; one pre- and one postocular ; temporals 142; 
six upper labials, third and fourth entering the eye, first smallest, 
sixth largest ; four lower labials in contact with the anterior chin- 
shields; posterior chin-shields small. Scales in 13 rows; male — 
with keeled scales in the anal and basicaudal regions. Ventrals — 
132-145 ; anal divided ; subcaudals 33-38. Dark brown ubove, — 
with indistinct lighter and darker longitudinal streaks ; yellowish 
beneath, uniform or scantily mottled with brown. 
Total length 280 millim.; tail 35. 
Sikkim. 
