338 



SNAKES OF CEYLON. 



touching three or four scales behind. Guneate : One, small 

 between the 3rd and 4th infralabials. 



Pr 



Prf 



S Po Pa 



R- ^4^/3,^-i__bJ^l2^ 



IT 



D 



Cos 



Fig. 64. — PorrectieoUis obscurus. 



(X 2.) 



J). Costal s. 



