Aegopinella reussi

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

Description
The diameter of the shell attains 8.3 mm, its height 4.2 mm.

(Original description in German) The shell is very flat and conical, with an almost flat apex and a moderately flattened, not very wide and continuously umbilical lower end. It comprises five flatly arched whorls, separated by deep sutures. The body whorl measures approximately three-quarters of the total shell height. The obliquely positioned aperture is broadly moon-shaped and features simple, sharp edges.

Distribution
Fossils of this extinct species were found in late Miocene strata in the Vienna Basin, Austria.