Class VI. SHELLS. 1 3 9 



cole, and the laft quite pointed. Very brittle; 

 Length two inches one eighth. 



Inhabits ft ill waters ; is, with others of the 

 kind, the food of trouts. 



In younger fpecimens is a duplicature of the 

 fhell, from the aperture fpreading along the firft 

 fpire ; as in Jig. A. In old fhells it vanifhes. 



B. Another, which I fufpedt to be alfo a va- 

 riety : lefter and fomewhat ftronger. Perhaps the 

 Helix lineofa of Linnaus 7 No. yo6. Lift. Angl. 

 tab. ii. No. 22, 



'Tab. lxxxvi. fig. 136. A. B. 



Lin* By ft. 1249. No. 705. Lift. Angl. tab. \\. fig. 24. Conch. Putris. 

 tab. 123. Jig. 23. Faun. Suec. No. 2189. I-,y # Mud» 



Sn. with the firft fpire vaftiy large and tumid, 

 The two others very fmall. 



Inhabits ponds, &c. 



T'ab. lxxxvi. fig. 137. 



tin. Syft. 1250. No. 708. Lift. Angl. tab. \\. fig. 23. Conch. Auricularia* 

 tab. 123. fig. 22. Faun. Suec. No. 2192. 138. Ear, 



Sn. with a very ventricofe firft fpire, fub-urnbili- 

 cated. The laft forms a minute apex. Color yel- 

 low. Very brittle. 



Inhabits ponds. / 



Tab. lxxxvi. fig. 138. 



Lim 



