Shell the tenth of an inch in diameter, glossy, dark 

 horn-colour, with six rounded volutions, which 

 are much raised and strongly defined : the base 

 prominent, with a depression in the centre form- 

 ing an incipient umbilicus : aperture transverse, 

 narrow, as high as broad with a very thin margin, 

 reflected only near the depression, which in young 

 shells is hardly visible. 



In woods, among dead leaves. 



A smaller variety is found among wet leaves in the 

 neighbourhood of Bideford, of a more flattened 

 form, making both the sides almost equally convex, 

 and sloping to a slightly carinated edge, with only 

 five volutions. It is the Helix Mortoni described 

 by Mr. Jeffreys in his interesting Synopsis of the 

 Testaceous Pneumonobranchous Mollusca of Great 

 Britain ; and may probably be specifically distinct. 



4-8. HELIX Scarburgensis. Shell somewhat trochi- 

 form, grey : the epidermis rising into close-set 

 equal longitudinal lamellae : umbilicus deep. 



Shell the tenth of an inch in diameter, and as much 

 high, grey or pale horn-colour, semitransparent, 

 pyramidal, with very numerous regular longitudi- 

 nal lamellae not shooting in the middle into spinous 

 projections : spire composed of six rounded and 



