3. XBITODEEMUS. 4. alOLICZKAIA. 175 



3. XENODERMUS. 



Xenodermus, Reinh. Overs. Vidensh. Selsk. Fork. 1836, p. 6 ; Wiec/m. 

 Arch. f. Nat. 1837, p. 136; Reinh. VidensJc. Selsk. Skrift. x. 1843, 

 p. 257 ; Gray, Cat. Sn. p. 81 (1849) ; Bum. ^ Bibr. Erp. Oin. 

 vii. p. 45 (1854). 



Gonionotiis, Gray, in Stokes's Disoov. in Austral, i. p. 502 (1846). 



Teeth subeqaal, about 15 in each maxillary. Head distinct 

 from neck, covered with granular juxtaposed scales ; nostrils 

 directed forwards, in an undivided nasal ; eye moderate, with, round 

 pupil. Body slender, compressed, with small juxtaposed keeled 

 scales and longitudinal rows of large tubercles ; ventrals well 

 developed. Tail long, with single suboaudals. 



Java ; Sumatra ; Pinang. 



1. Xenodermus javauicus. 



Xenodermus javanicus, Reinh. Overs. Vidensk. Selsk. Forh. 1836, 



p. 6, and Vidensk. Selsk. Ski-ift. x. 1843, p. 257, pi. ii. figs. 1-8 ; 



Gray, Cat. p. 81 (1849) ; Dura. S; Bibr. vii. p. 45, pi. Ixiii. (1854). 

 Gonionotus plumbeus, Gray, in Stokes's Discov. in Austral, i. p. 503, 



pl. iv. (1846). 

 Xenoderma javanicum, F. Mull. Verh. not, Ges. Basel, viii. 1887, 



p. 268. 



Hostral small, triangular, not visible from above ; nasals meeting 

 behind the point of the rostral, followed by two pairs of small 

 shields ; labials scarcely enlarged, about 20 on each side ; no chin- 

 shields. About 40 scales across the body ; the tubercles disposed 

 in pairs alternating with single ones on the vertebral line, and 

 forming a single series along each side of the back. Ventrals 

 173-185 ; anal entire ; subcaudals 147. Dark brown above, 

 lighter beneath. 



Total length 350 millim. ; tail 135. 



Java, Sumatra, Pinang. 



a. (S (V. 173; 0.147). Java. {TyT^e oi Gonionotus plumbeus.) 



4. STOLICZKAIA. 



Stoliczkia, Jerdon, Proc. As. Soc. Beng. 1870, p. 81 ; Bouleng. Faun. 

 Ind., Rept. p. 354 (1890). 



Teeth small, subequal, about 14 in each maxillary. Head 

 distinct from neck, covered with large shields ; nostrils directed 

 forwards ; nasal shield undivided ; eye small, with round pupil. 

 Body slender, compressed ; scales elliptical, juxtaposed, strongly 

 keeled, increasing in size towards the ventrals, which are well 

 developed. Tail long ; subcaudals single. 



Khasi ffills, N.E. India. 



