SECTION IV. 8i 



markable occurs ; but in his fourth book 

 he divides his fea univalves into eleven fa- 

 milies, viz. I. Limpets. 2. Dentalia. 3.Ver- 

 miculi. 4. Nautili. 5. Snails. 6. Nerits. 

 7. Sea-Ears. 8, Trochi, 9. Cowries. 10. 

 Rhombi, or Strombi ; by which he means 

 olives or cylindars, figs, and fome other 

 wide-mouth Shells, and alfo Volutes ; 

 and, T 1. Buccina, which he fubdivides into 

 fivefets, viz. i. Thofe with a toothed co- 

 lumella or pillar. 2. Bilingues. 3. Ampulla- 

 ceous, or bellied. 4. The Turban or Clavi- 

 cle, and the top-lengthened or produced: 

 and 5. The top or mouth no ways pro- 

 duced. 



Lifter's above method is indeed very 

 confufed, and no wife to be followed. His 

 I, 2, 3, 4, 85 and 9th families are good. I 

 think him right in making the Dentalia a 

 diftinft family from the Vermiculi : the 

 former being always of a regular determi- 

 nate figure ; the latter, or Vermiculi, of 

 a figure irregular and uncertain. His 7th 

 family of Sea-Ears feems outrageoufly 

 milplaced between the Nerits and Trochi; 



G ic 



