GENERAL CLASSIFICATION OF POISONOUS SNAKES 7 



Fig 1 —A Cranial skeleton o£ one of the non -poisonous Coluhridiv (Ftyas mucosns) ; 

 E cranial skeleton of one of the poisonous Coluhridm (Naja tripiidians) ; c, cranial 

 skeleton of one of the poisonous Colubrida {Bwigarus fasciatus) ; D, cranial skeleton of 

 one of the Viperida, {Vipera russellii) ; E, cranial skeleton of one of the Izpertdc^ 

 Grotalincv. (Crotalus dnrissns) ; r, cranial skeleton of one of the Colubrida> Hydro- 

 phiince (Hydrophis pelamis). 



