S E C T I O N IX. 173 



SECTION IX. 



PART III, revolved Shells, or Shells 

 whofe fpires are latent, or hidden 

 within the body, and do not in any man- 

 ner appear externally ; fo that they have 

 no clavicle or turban *. * 



I 



The common Nautilus is alfo a revolved 

 Shell, but being more remarkable for its 

 chambered flrudure, it is arranged in Part 

 lecond. 



This third part contains three families, to V/V- .^./.fyj.i^/, 

 wit, family fixth, Nuces feu Bullae, the 

 Pewrit's Eggs, or Dipping Snails. Seventh, 

 Semiporcellanae. Eighth, Cvpreje feu Por- 

 cellanae, the Cowries. 



The fixth family Is the Nuces, feu Bullae, 

 commonly called the Pewit's Eggs, or 

 Dipping Snails, but which I (hall hence- 



* Univalvia turbinata, clavicula intus recondlta, 

 vel ita in fe contorta, ut eorum circumvolutiones nulla 

 ex parte promineant, Turbinata involuta. 



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