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body ; the black edges expanding into bands reaching to the belly 

 below and over the back to the occelli on the other side. Belly 

 yellowish, greyish behind. A broad black band stretches from the 

 eye to the gape, and is continued along the side. This species is 

 closely allied to T. chvysargus from Java. 

 Inhabits Ceylon. 



T. plumbicolor, Cantor, 



Xenodon viridis, D. et B. 



Ampldesma bracJiyurum. Jan. No. 29, PI. 3. 



Form stout. Prsefrontals more than half the size of post- 

 frontals. Two prse and- three postoculars. 7 upper labials, the 

 third and fourth entering the orbit. Scales in 23, 25 or 27 rows. 

 Colour dirty greenish, below whitish, a blackish band on each side 

 of the neck. In the young, a broad yellow collar pointed in 

 front and forked behind with a similar black band in front. An 

 oblique black streak behind the eye, and ten or more narrow 

 black cross-bars on the body. Sides of throat black dotted, and 

 beUy more or less blackish. 



Grows to 25 inches. (Tail 3.) 



Inhabits Southern, Central and North-Western India, Ceylon 

 and Bengal (as far east as Sahibganj), 



Atretium, Cope. 



Body somewhat stout. Eye moderate. Pupil round. A 

 single triangular prsefrontal. Two nasals, with the nostril in the 

 upper part of the suture. Scales rhombic, keeled in 19 rows. 

 Anal bifid. 



A. schistosum, Daud. 

 Prsefrontal as large as a postfrontal. Loreal higher than long. 

 One prseocular. Three postoculars. 8 upper labials, the third 

 and fourth entering the orbit (when 9 labials, the fourth and 

 fifth enter the orbit). Scales in 19 rows. Those of the dorsal 

 region keeled. Colour above very dark blackish olive. The 

 labials, two outer rows of scales and the lower parts uniform 



