The Natural Htflory 



Fifhers for Pearls, that there are many 

 kinds of Sheil-fifh which lye perpetu- 

 ally concealed in the Detp^ skreenM 

 from our Eyes by that vaft world of 

 Water, and which have their continu- 

 al abode at the bottom of the Ocean, 

 without ever approaching near the 

 Shores, it being as unnatural for thefe 

 to defert this their native ftation, as 

 'tis for thofe that are the inhabitants 

 of the Shores, to quit theirs, and re- 

 tire into the deep : that for this reafbn 

 thefe are called by Naturalifts 

 and Pelagic, as the others, that refide 

 nearer to the Shores, are by them 

 called Littorales. Now the Shells which 

 we find expofed upon our Shores, are 

 only thofe which are caft up and 

 ftranded by tides and by ftorms 5 and 

 confequently are all of them Exuvis of 

 thofe kinds that live near the Shores, 

 and not of thofe that inhabit the M4j/>, 

 or the deeper and remoter parts of the 

 Ocean ; it being certain from the Rela- 

 tions alfo of Dyvers, that the Tides 

 and Storms, even the moft tempeftu- 

 ous and turbulent, affeQ: only the fu- 

 perficial parts of the Ocean, the Shal- 

 lows^ and Shores, but never reach the 

 greater Depths, or difturbthe bottom 



