HELIX. 135 



spire depressed ; whorls five, with delicate, parallel, 

 oblique striae ; suture distinct, not deeply impressed ; 

 aperture contracted by the lip, flattened towards the 

 plane of the base ; lip white, broadly and abruptly re- 

 flected ; pillar-lip with a prominent, white, tooth-like 

 process nearly parallel with the lower margin of the 

 aperture, not projecting towards the umbilicus ; base 

 convex. 



Greatest transverse diameter, about three-quarters of 

 an inch. 



GEOGRAPHICAL DISTRIBUTION. Noticed by me, hith- 

 erto, only in the State of Vermont, on the eastern slope 

 of the Green Mountains. Dr. De Kay includes it in his 

 Catalogue of the Mollusca of New York ; and it has also 

 been found in Ohio. 



REMARKS. This species does not appear to be common 

 in the localities which it inhabits. Several years since, 

 they were very numerous in the town of Strafford, Ver- 

 mont, but have latterly entirely disappeared. It can 

 only be compared with Helix appressa, the large variety 

 of which it resembles. It differs from it, however, in 

 having no projection on the inner margin of the lip, and 

 in the character of the columellar tooth, which is straight 

 and prominent, never curved. The lip is more acutely 

 reflected, broader and more flattened, and the base is 

 more convex. The general aspect of the two is quite 

 different. H. dbjecta is also similar in form, but is des- 

 titute of a tooth. 



