( 193 ) 



upper border. Measured 34 inches (Tail 12), and contained seven 

 foeti, each six inches long. Taken in a mangrove swamp on the 

 Arakan Coast. 



Grows to 36 inches. (Tail 105) query in males ? 



Inhabits mangrove swamps on the Arakan Coast and freely 

 seeks refuge when attacked in the water. 



T. Javanicus, Stein. 



Allied to T. prasinus. Scales smooth in 15 rows. 



Anal single. Upper labials 9. The fifth and sixth upper labials 

 only entering the orbit. The fifth upper labial nearly as large as 

 the sixth and broad, whereas in prasinus it is very narrow. The 

 second,- third and fourth upper labials much ^mailer than in 

 prasinus. Loreals 3. Prseocular very large, hollowed out, and 

 in contact with the postfrontal, the vertical and the superciliary. 

 Postoculars 2, smaU. Ventral not keeled. 



Colour green, with 4 white longitudinal stripes on the belly. 



Inhabits Java and Pegu. (_Vide An. & Mag., N. H., 1868, 

 Vol. I, p. 424.) 



Passerita, Gray. 



Body and tail very slender. Head depressed, elongate. Snout 

 pointed and ending in a flexible appendage. Loreal region 

 deeply concave. Eye moderate. Pupil horizontal. Nostril 

 small, lateral, in the hinder part of a single shield. Scales 

 smooth, elongate, in 15 rows. Vertebrals enlarged. Ventrals not 

 keeled. Anal bifid. 



P. mycterizans, L. 



' Dryvmis naswtus, Merr. 

 Dryinus fuscuS) D. et B. 

 Loreal none, replaced by the frontals, which are bent down to 

 meet the labials. One prseocular. Two postoculars. Two labials 

 from the lower edge of orbit. Colour bright grass green, lighter 

 on the beUy. A yellow lateral line along the belly on each 

 side. Occasionally a brown variety occurs. (D. fuscus.) 



Grows to 72 inches. (Tail 25.) The Ceylon race seems to 

 remain one-third smaller than this. 



^2 



