BRITISH SERPENTS. 



north of Mexico ! " ^ In Australia, too, there are 

 large numbers of serpents : " first, the harmless, of 

 which there are some five-and-thirty ; secondly, the 



Fig. 1. — Heads of the three British Serpents. 

 1. The Adder. 2. The Ring Snake. 3. The Smooth Snake. 



venomous, over seventy, including the sea-snakes." - 

 Compared with such countries as these, our British 

 serpents do not form a very imposing list, three 

 species only being found, only one of them at all 



^ Packard. 



2 Aflalo, Natural History (Vertebrates) of the Biitish Islands. 



