SECTION IV. 



fwelled, as the Buccina, &c. Clafs 4, 

 Whofe firft, or body fpire, is narrow^ 

 or tapers with the reft of the (hell, as 

 the Strombi, Mitre, Crane, &c. Clafs 

 5. Whofe turbau or clavicle is very pro- 

 duced or (harp, as Strombi, Trochi, &c. 

 Clafs 6. Thofe Shells whofe aperture and 

 clavicle are little produced, as the Snails, 

 |N3"erits, and Sea Ears^ 



Part III. the Bivalves, Clafs i. Equal or 

 funilar-fided Bivalves, or whofe cardo is 

 central, as Cockles, Ghama^, Tellens, &c. 

 Clafs 2. Diffimilar or unequal fided Bivalve^, 

 or whofe cardo is not central, as Mufcles^ 

 Pholades, and m^ny others ; and Clafs 3. 

 Conchas anomalae, or pf unequal valves, 

 as Efcallops, Spondyles, Oyfters, &c. 



It is evident, this arrangement qf Laq* 

 gius is confufed, and vyants great cor^ 

 redlion. 



Argenville divides all Shells into the 

 three general claffes, of Uni valves, Bi- 



G 4 valve% 



