James,
Sounds like one of the Gastrocopta if the "ridges" are tooth-like.  Species
are separated by arrangement of these apertural barriers, shell size and
shape.  No tellin' what species yours is without a little more to go on.
 
Kurt
 
At 02:53 PM 5/24/99 -0500, you wrote:
>Dear all, I am writing to inform everyone
>that I have moved. If for some reason you want
>to send me something, please send it to this address:
>
>James Cheshire
>427 E. College Street
>Granville, OH
>43023
>
>
>Now, to all land snail experts, I need some help.
>While looking under a rock up here in Ohio, I discovered
>a snail very odd in design. It is very small( Estimated size 2-3mm,
>I lost my caliper) Whorls numerous (5) and straight sided; color is
>translucent
>white. Aperture oval, dish shaped, with thin edges; ridges inside of
>aperture.
>It looks like a Pupa, and very well may be one.
>I have only found this species in Ohio and Tenessee, nowhere else.
>Can anyone help?
>
>Thanks,
>James C.
>
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