392 



what rounded, and well defined by a deep feparatingline: 

 volutions fub-ftriated, or rather wrinkled longitudinally : 

 apex rather obtufe: aperture oval, marginated, white, 

 reflexed; behind the pillar lip a groove ox fub -umbilicus. 

 Length three-eighths of an inch ; breadth more than one 

 third its length. 



This fpecies inhabits the fame places as the preceding, 

 efpecially moid; woods ; and frequently afcends the trunks 

 of trees. It differs from that fliell in being larger, not fo 

 taper, by its dull, opaque, brown colour, and wrinkles ; and 

 particularly by its v/hite, marginated, and reflexed a pcrture. 



We originally received this from Mr. Boys, for 

 Walker's fliell referred to, who fays it is found at Fa- 

 verjliam; the figure, however, given mihe Minute Shells, 

 is vaflly too large, unlefs it is intended for a magnified 

 enjTravin^j. 



We have found it in a moifl wood at Lackham in Wilt- 

 JJiire, on the trunks of fmooth-barked trees, fuch as aOi 

 and hornbeam, not uncommon; and rarely in DevovJIiire 

 in dry banks. It alfo affecis high fituations, for we ob- 

 ferved them in confiderable abundance, and of fuperior 

 lize, upon the top of the highefl part of Portland ifland, 

 under flones. 



That it is not a common flicIl is certain, but muf} be 

 confidered as more local than rare, though it is by no 

 means generally known. 



■ If 



