SNAKES OF CEYLON. 



553 



temporal. Infralabials : Three, all or only first two touching 

 the sublinguals, 



Fig. 96. — Ancistrodon hypnale. 



(X 2.) 



Costals : Rectiform, about as broad as long, with rounded 

 apices ; obtusely keeled. Vertebrals slightly enlarged, the 

 breadth of the scales equal to their length, and equal to those 

 of the ultimate row. Ultimate row slightly enlarged, the 

 breadth of the scales about equal to their length. In 17 rows 

 two heads-lengths behind the head, 17 in midbody, and 17 or 

 15 two heads-lengths before the Vent. The row absorbed is the 



