440 



THE OCEAN WOULD. 



ing of the shell exhibits many shades, which are particularly varied 

 towards the opening, where it is generally distinguished by great 



Fig. 303. Pteroceras chiragra (Linnceus). 



Fig. 304. Pteroceras lambis (Linnaeus). 



freshness and brilliancy, which, added to its other characters, render it 

 the most interesting of all the Gasteropods. 



