96 CONCHOLOGY. 



winkle, the Ribband Snail, the Serpent's 

 Skin, the Gold and Silver Mouths, the 

 Dolphin, the Wintle Trap, the Grub, and 

 fonae Strombi. 



The Helix, or twelfth family, in which 

 he includes all the horny or femipelhicid 

 Univalves that are very thin and brittle ; 

 as the common River Buccina, Pomatia, 

 &c. 



The thirteenth family Is Nerita : and 

 he places therein only the true Neritae, as 

 Green Peas, Painted Nerits, Magpies, &c. 



The fourteenth family is the Haliotis, 

 or Sea Ears. 



The next are the fimple, or not tur- 

 binated Univalves : as fifteenth, the Pa- 

 tellae or Limpets, Sixteenth, the Denta- 

 lia. Seventeenth, Serpulas, or Vermiculi. 

 Eighteenth, Teredo, or Ship Worms. And 

 Nineteenth, Sabella, or fuch whole tubes 

 are made of grains of fand like the 

 caddos worms. , I ihall 



