438 



inch ; height little more than a quarter. Some va- 

 riety is obferved in this fpecies, with refpeft to the 

 ground colour, as well as that o^ the fafcice ; the former 

 is from a pure white to a pale yellowifh-brown, efpeci- 

 ally on the under part; and the bands vary from a pale 

 to a deep purplifli -brown : but it is not unufually found 

 without any bands, and when dead and bleached is 

 pure white. 



This is notan uncommon (hell upon dry, landy heaths, 

 and barren land, in many parts of England; but we 

 never met with it fo plentiful as upon the fandy decli- 

 vity of the hill above Whit/and bay, at the extremity of 

 the peninfula of Cornwall; where, together with Helix 

 virgata, and Turbo fafciatus, the ground is perfcftly 

 <:overed. 



It has fomcwhat the habit of the former of thefe lafl- 

 mentioned fliells ; but is at once dilfingniRied, by its 

 comprefled (hape, and capacious umbilicus, in which it 

 •exceeds every other of the larger BritiJJi fpecies. 



44. 

 SuBCARiNATA. Helix. JValk. Mm. Skells A. 22 } 



Tab. 7. f. 9. 



H. w ith a fub-pellucid, white fliell : volutions three : 

 the lower one large, the others fmall, a little produced, 

 and placed fomcwhat lateral : round the bafe of the body 

 wreath are two fine ridges ; and on the upper part 

 another, which continues round the middle of the fecond 



volution. 



