Class VI. SHELLS. m 



Inhabits dry fandy banks, 

 "Tab. Ixxxv.fig. 122. 



Lin. Syfi. 1242. No. 662. Lift. Angl. tab. ii. fig. 27. PJanorbis. 

 Gualtieri, tab. iv. Jig. E. E, Faun. Suec. No. 2176. 123. Flat. 



Snt. with a very flat brown fhell, (lightly carinated 

 on the outfide ; the aperture oblique. 



Inhabits ponds. 



"Tab. lxxxiii. fig. 121. 



Lin* Syft. 1243. No. 66j. Lift. Angl. tab. \\* fig. 28. Gualtieri. Vortex* 



tab.iv.fig.G. G. 1 24. Whirl, 



Lift. Conch, tab. 13%. fig. 43. Faun. Suec. No. 2178. 



Sn. with a very flat thin (hell, and fix fmall fpires. 

 The outmoft carinated. 



Found with the former. 



Tab. lxxxiii. fig. 124. 



Sn. with four fpires ; the exterior very large. Ttiana. 

 Thick in proportion to its diameter. Umbili- 

 cated. 



Whether a young, or a variety of the follow- 

 ing ? 



Tab. lxxxiii. Jig. 125. 



K3 



Liit* 



