$4 CONCHOLOGY, 



clafles or families, viz» i, Tubulus, of 

 Vermiculus. 2* Cochlidium, or all turbi- 

 nated Shells. 3. Poly thalamia, or chambered 

 Shells. 4. Limpets. 5. Conchae, or Bi- 

 valves. 6. ConchoideSj or Multivalves. 7. 

 Balanus, and 8. Echinus. 



It is evident this method is neither cor- 

 reft or clear, and therefore rather imagi- 

 nary than ufeful. 



Linnaeus's fyflem places the teftaceous 

 aaimals in his fixth clafs of Vermes, and 

 begins with the Multivalves, follows with 

 the BivalveS) and ends with the Univalves- 

 He has fourteen families of the turbinated 

 Univalves, and five of the fimple^ or non- 

 turbinated* 



His fourteen faimilies of turbinated Uni- 

 valves are, I. The Paper Nautili. 2. The 

 common or chambered Nautili. 3. The 

 Conus or Volutes. 4. The Cyprsea or 

 Cowries. 5. The Bulla, in which are the 

 Poached Egg, the Weaver's Shuttle, the 



Pewit's 



