PUPA. 153 



pair more like tubercles ; foot rounded in front and obtusely 

 pointed behind." — B.C.^ vol. i. p. 244. 



Shell subcylindrical, somewhat oval, rather solid, scarcely 

 semitransparent, glossy, light brown or yellowish horn-colour, 

 with slight but close-set transverse striae ; periphery rounded, 

 but somewhat compressed ; epidermis thin ; whorls 6-65, 

 convex, body whorl occupying about one-third of the shell ; 

 spire short and abrupt, apex obtuse ; siihire distinct, but 

 shallow ; mouth horseshoe- shaped, but considerably angulated 

 and contracted by the folds, of which there are usually two on 

 the base of the penultimate whorl, the outer one large, spirally 

 twisted, and extending far within the aperture ; two on the 

 pillar (the outer one much more prominent than the other), and 

 a fold, as well as from one to three rather deeply seated denticles 

 inside the outer lip ; there is also a curved fold, which extends 

 from the base of the lip to the inner fold on the pillar, forming 

 with it a pointed arch ; outer lip pale reddish-brown, consider- 

 ably thickened, somewhat reflected, inflected and rounded above 

 so as to join the outer fold on the penultimate whorl ; umbilicus 

 oblique, distinct, but narrow. 



Inhabits moist places among moss and decayed 

 leaves, as well as at the roots of grass and under 

 stones, in the north of England, the north and west 

 of Scotland, in most parts of Ireland, and in 

 Guernsey. 



This species was first discovered by Mr. Bean of 

 Scarborough, and described in the ' Linnean Trans- 

 actions ' by Gwyn Jeffreys, who in his ' British 

 Conchology ' says : " This is a shy little creature, 

 although tolerably active when inclined to make its 

 appearance. It has a singular habit of withdrawing 

 slowly one of its eyes, which rolls backwards like a 

 little ball until it reaches the neck, while the tentacle 

 which supports it remains extended to its full length. 

 This I have observed being done when there was no 



