DESCRIPTION. 



Shell subconic-oval, olivaceous, generally truncated at 

 the apex : whorU five, wrinkled across, and banded with 

 minute, distant striae : suture deeply impressed and con- 

 spicuous : aperture subovate, more than half the length of 

 the shell ; within bluish- white : operculum elevated on the 

 disk, concentrically striated, coriaceous. 



Jlnimal with the foot large, suddenly a little dilated each 

 side before, and widely truncate in front : foot livid, thick- 

 ly maculated with irregular orange spots, which are much 

 smaller beneath : head and tentacida spotted with orange : 

 eyes on a prominent angle at the exterior base of the ten- 

 tacula. 



OBSERVATIONS. 



The young shell resembles the suhcarinata^ Nob., Ni- 

 chols. Enc, but the whorls are de^itute of an elevated 

 line, the suture is not so deeply impressed, and the aper- 

 ture is narrow above. 



I found the animal viviparous in October ; the young 

 shell had then three complete whorls, which were spirally 

 striated. 



The species is very common in various parts of the Un- 

 ion. Dillwin informs us that MuUer and others have in- 

 correctly quoted Lister's figure for their Helix angularis. 



REFERENCE TO THE PLATE. 



The upper and lower figures represent the shell of the natural size. 

 PLATE X. 



