XXV 



GENERIC CHARACTERS 



OF 



The feveral Animals inhabiting Shells, 



Many of which are found inJependent, in 2 true MolIufi:a ftatf . 



SHELL, is the natural covering of many animals for 

 the proteftion, fecurity, and defence of their foft and 

 delicate bodies; and which grows, and enlarges as the 

 encreafing bulk of the animal requires : it muft there- 

 fore be confidered as much a part of the animal as the 

 covering of a crab or a tortoife. 



The animals hitherto difcovered to inhabit the (hells 

 of Great Britain, which have been thoroughly defined, 

 and reduced to fyftematic arrangement are 



d 2 I DORIS. 



