136 COLUBRID.E. 



2 or 3 loreals ; 1 praeocular, with a subocular below it ; 2 post- 

 oculars; temporals 2-1-2; 9 upper labials, tifth and sixth entering 

 the eye : 5 lower labials in contact with the anterior chin-shields, 

 which are much shorter than the posterior. Scales in 16 or 18 

 rows, 2 or 4 middle rows keeled. Ventrals 208-215 ; anal 

 divided; subcaudals 110-118. Brownish olive or blackish 

 anteriorly, with yellowish spots or irregular cross-bands, yellowish 

 or pale brown posteriorly with a large deep-black network; lower 

 parts yellowish anteriorly, black and yellow posteriorly. 



Total length 3000 millim. ; tail 750. 



Malay Peninsula (Perak, Singapore), Sumati-a, Borneo. 



143, Zaocys fuscus. 



Conjphodonfuscus, Giiuth. Cat. Col. Sn. p. 112 (1858). 

 Zaocys fuscus, Giintb. Rept. Erit. Iiid. p. 256 (1864); Bouleug. 

 Cat. iSn. i, p. 378, pi. xxvii, tig. 2 (1893). 



Kostral a little broader than deep, visible fi-om above ; iuter- 

 masals shorter than the pi-aefrontals ; 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 ; 3 loreals ; 1 praeocular, 

 with 1 or 2smallsuboculars belowit ; 2 postoculars; temporals 2 -|- 2; 

 9 upper labials, fifth and sixth entering the eye ; 5 lower labials 

 in contact with the anterior chin-shields, which are much shorter 

 than the posterior. Scales smooth, in 16 rows. Ventrals 189- 

 198; aual divided; subcaudals 160-165. Olive or olive-brown 

 above, with or without a brick-red vertebral line ; a black lateral 

 band along the posterior part of tlie body and along the tail, 

 extending to the outer ends of the ventral and subcaudal shields ; 

 lower parts pale yellow. 



Total length 2900 millim. ; tail 1000. 



Penang, Malay Peninsula, Sumatra, Borneo. 



A specimen obtained on Penang Hill, at an elevation of 1900 

 feet, by Capt. Flower, had in its stomach a recently swallowed 

 frog, Megalophrys nasuta. 



Genus ZAMENIS. 

 Wagler, Syst. Amph. p. 188 (1830). 



Maxillary teeth 12 to 20, increasing in size posteriorly ; man- 

 idibular teeth subequal, or anterior slightly enlarged. Head 

 -elongate, distinct from neck ; eye moderate or large, with round 

 pupil; usually one or more suboculars. Body elongate, cylin- 

 -drical ; scales smooth or feebly keeled, with apical pits, in 15 to 

 23 (13 to 43) rows ; venti-als rounded or with an obtuse lateral 

 Jseel. Tail moderate or long; subcaudals in two rows. 



Europe, Asia, North Africa, North and Central America. 



