Aegopinella subnitens

Aegopinella subnitens  is an extinct species of small land snail, a terrestrial pulmonate gastropod mollusk in the family Gastrodontidae, the glass snails.

Description
(Original description in Latin) The shell is distinctly umbilicate and depressed, with a flat and glabrous surface. It is shiny and consists of 4.5 convex whorls that gradually increase in size, with the body whorl slightly expanded anteriorly. The aperture is ovate-lunate, and the peristome is simple and acute, with the apertural lip being non-callous.

Distribution
Fossils of this extinct species were found in late Miocene strata in Baden-Württemberg, Germany and in southern Poland.