132 HELICID^. 



DESCRIPTION. 



Animal grayish-brown or blackisli above, paler on 

 the posterior extremity and base ; superior tentacles black, 

 long, and slender ; glands very prominent ; length, when 

 fully extended, including the tentacles, equal to thrice 

 the breadth of the shell. 



SiXELL convex, somewhat ventricose ; epidermis of 

 a uniform, yellowish horn, or russet-color; whoi-ls between 

 five and six, with fine, parallel stria; crossing them ob- 

 liquely ; body whorl large and ventricose ; suture well 

 marked and distinct ; aperture rounded, contracted by 

 the lip, the plane of the aperture making a considerable 

 angle with the plane of the base ; lip white, reflected ; 

 pillar-lip with a prominent, white, oblique tooth ; umbih- 

 cus covered. 



Greatest transverse diameter, about one inch. 



Geographical Distribution. Common in the States 

 bordering on the Ohio River, in East Tennessee, the west- 

 ern parts of Vu'gmia and Pennsylvania, and the nor- 

 thern States from New York to Missouri. I have not 

 heai'd of its having been noticed in New England, or 

 eastward of the Alleghany mountains. 



Rejiakks. This shell has frequently been confounded 

 with Helix alholabris, Say ; and I have seen it in cabi- 

 nets labelled as a toothed variety of that species. It is, 

 however, quite as distmct from it as the other aUied spe- 

 cies, and is generally received as an independent species. 



