SNAKES OF OEYLON. 



493 



posterior sublinguals, and about twice as broad as those 

 shields, touching two scales behind. Cuneate : A small scale 

 wedged in between the 4th and 6th infralabials. (Fig. 87.) 



Fig. 8 7. — Naia tripudians. 

 (Life size.) 



Costals : Vertebrals and last three rows rectiform ; the 

 intermediate rows oblique. Vertebrals, breadth half or 



