Amnicola clarkei is a species of very small freshwater snail which has an operculum, an aquatic prosobranch gastropod mollusc in the family Amnicolidae.
(Original description) The conical shell is narrowly umbilicate, with a slightly obtuse apex.
The aperture is distinctly oblique and almost circular, with the upper end rounded slightly more narrowly than the base.
The peristome is thin, continuous, and barely in contact with the preceding whorl above.
The operculum exhibits a relatively large spiral, with the nucleus located above the lower third.