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DESCRIPTION OF A NEW SNAKE FROM THE PERAK 
HILLS. 
By G. A. Bourenerr, F. R. 8. 
(Read before the Bombay Natural History Society on 10th July, 1900.) 
LycoDON BUTLERI, n. sp. 
Closely allied to Z. fascatus, Anderson, but with a larger eye and 
more strongly angulate ventral and subcaudal shields. Body slightly 
compressed. Rostral twice as broad as deep, hardly visible from above ; 
internasals three-fifths the length of the preefrontals ; frontal a little 
longer than broad, as long as its distance from the end of the snout, 
shorter than the parietals ; loreal more than twice as long as deep, 
bordering the eye below the single preocular ; two postoculars ; temporals 
2 + 2; eight upper labials, third, fourth, and fifth entering the eye ; 
five or six lower labials in contact with the anterior chin-shields, which 
are as long asthe posterior. Scales in 17 rows, dorsals very feebly 
keeled. Ventrals 228, strongly angulate laterally ; anal entire; sub- 
caudals 88 pairs. Blackish-brown above and beneath, with 43 rather 
‘irregular annuli of whitish spots or light edges to the scales. 
Total length 540 millim. ; tail 115. 
_ A single female specimen from the Perak hills, at an altitude of 
5,000 feet. Preserved in the Selangor Museum, after whose Curator 
the species is named. 
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