378 : COLUBRID. 
5. Zaocys fuscus. (Prare X XVII. fig. 2.) 
Coryphodon fuseus, Giinth, Cat. p. 112 0 (1988 
? Herpetodryas horneri, Jan, Elenco, p. 
Zaocys fuscus, Giinth. Rept. Brit. Tn p- $56 (1864), 
Rostral a little broader than deep, visible from above; internasals 
shorter than the preefrontals; frontal a little longer than broad, as 
long as its distance from the rostral or the end of the snout, a little 
shorter than the parietals; three loreals ; one preocular, with one 
or two small suboculars below it; two postoculars ; temporals 242 ;— 
nine upper labials, fifth and sixth entering the eye; five lower 
labials in contact with the anterior chin-shields, which are much 
shorter than the posterior. Scales smooth, in 16 rows. Ventrals 
189-198 ; anal divided; subcaudals 163-165. Olive above, 
yellowish inferiorly ; a black Jateral band along the posterior part 
of the body and along the tail, extending to the outer ends of the 
ventral and subcaudal shields. 
Total length 2900 millim.; 4. il 1000. 
Borneo and Sumatra. 
aod (Vv. 195 ; C, 163). Borneo. (T ) 
Her. ¢ (V.192; C.165). Borneo. Sir E. Belcher [P.}.{  YP®&* 
¢, og Am: 189, 198; C. Nias. Hr, Sundermann [C.]. . 
®), 
e. ¢ (V.195; C.?). ——? _ Dr. Bleeker. 
6. Zaocys tenasserimensis. 
Zaocys tenasserimensis, W, L. Sclater, Journ. As. Soc. Beng. \x. 
1891, p. 238, pl. vi. fig. 3. 
‘Rostral as broad as deep, just visible from above; internasals 
shorter than the preefrontals; frontal longer than broad, longer than 
its distance from the end of the snout, shorter than the parietals ; 
three loreals ; one preocular, with a subocular below it; two post- 
oculars ; a single pair of long, superposed temporals ; seven or eight — 
upper labials, fourth or fifth entering the eye ; five lower labials in 
contact with the anterior chin-shields, which are equal to the poste- 
rior. Scales smooth, in 16 rows. Ventrals 201; anal divided ; 
subcaudals 123. Black above, greenish olive on the head; ante- 
riorly with traces of a white vertebral line; in the middle part of 
the body a series of ill-defined white transverse bands bordered 
with black posteriorly ; on the hinder part of the body the bands 
are gradually transformed into seven longitudinal series of white 
spots separated by a black network; below yellowish, the outer 
edges of the ventrals dusky, tail with a median dusky streak. 
Tenasserim. 
