new South- American Reptiles. ]1.) 



long as its distance from the end of the snout, mucli sliorter 

 than the paiietaJs ; loreal tliree times as \o\\^ as deep ; no 

 praeocuhir ; two postociilars ; temporals 1 + 2; seven upper 

 labials, tiiird and fourth entering tjie eye; a sin^^le pair of 

 large chin-shields, in contact with the symphysial and, on 

 each side, with four lower labials. Scales in 17 rows. 

 Ventrals HG ; anal entire; subcaudals 25. Uniform black. 



Total length 235 mm. ; tail 'lb. 



A single female specimen from Los Mangos, S.W. 

 Colombia, altitude 300 m,, by Mr. G. Palmer. 



Leptognathus schunkii. 



Body slender, strongly compressed. Eye large. Rostral 

 broader than deep, just visible from above ; internasals about 

 half as long as the praifrontals ; frontal as long as broad or a 

 little broader tiian long, as long as its distance from the end 

 of the snout, much shorter than the parietals ; nasal divided; 

 loreal as long as deep or a little deeper than long, bordering 

 the eye; a ])ra3ocular above the loreal; two or three post- 

 oculars; temporals 1 + 2 ; eight or nine upper labials, third, 

 fourth, and fifth, or fourth, fifth, and sixth entering the eye; 

 first lower labial in contact with its fellow beliind the sym- 

 physial ; three pairs of cliin-shields, anterior longer than 

 broad. Scales in 15 rows, vertebrals much enlarged but not 

 twice as broad as long. Ventrals 177-188; anal entire; 

 subcaudals 90-102. Black, witii whitish irregular annul!, 

 which may be interrupted on the back and belly; these 

 annuli may be speckled with black, and tiie black specks may 

 become so crowded on the posterior part of the body as to 

 reduce the white annuli to mere outlines; head black above, 

 with yellowish spots or dots and a yellowish line across the 

 snout ; sides of head yellowish, spotted with black; a whitish 

 band dotted with black across the nape. 



Total length 1»20 mm. ; tail 210. 



Three specimens from Chanchamayo, E. Peru, collected by 

 Mr. C. Schunke. 



Apparently closely allied to L. boettgeri, Werner, from the 

 same locality. 



Mr. Schunke's collection from Chanchamayo also contains 

 a snake agreeing in every respect with Tschudi's JAopkis 

 tceniiirus, as figured by Jan. This shows that the species 

 must be referred to the genus Aporophis, as proposetl by Cope. 

 The specimens referred by me to Liopkis hcniuras in the 

 '■ British Museum Catalogue of Snakes ' cannot be separitcd 

 from L. albiventris, Jan. 



8* 



