PLATE LXXX. 



Linnaeus and Da Costa have described this species with six spires ; 

 Pennant mentions only four ; and we have remarked, that those with 

 four spires are more numerous than the others. 



It is a small shell, rarely exceeding the size of the smallest figures 

 in the annexed plate ; is very transparent, smooth and glossy, but 

 under the magnifier exhibits many longitudinal streaks. 



This shell inhabits mosses on old walls, thatches, trees, &c. It has 

 been found by Da Costa in Middlesex and Surry ; by Petiver on the 

 sandy banks of the Thames, at Kingston, in the latter county. Dr. 

 Lister, in plenty at Estrope, in Lincolnshire. Morton, in great plenty 

 in the ground near Morsley Wood, in Northamptonshire; and re- 

 ceived also by Da Costa, from Leeswood, in Flintshire, 



