Columella aspera Waldén 1966

Columella aspera is a species of very small air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Truncatellinidae, the vertigo snails and allies.^[1]

Description

The 2.0-2.5 x 1.3-1.4 mm. shell has 4-5 whorls and the spire tapers towards the apex. The aperture is simple without teeth . The colour is dark grey brown or horny brown. The surface is not shiny and finely and regularly striated. It is more coarsely sculptured than the very similar Columella edentula.

Distribution

This species occurs in countries and islands including:

• Czech Republic
• Great Britain
• Ireland

References

• Kerney, M.P., Cameron, R.A.D. & Jungbluth, J-H. (1983). Die Landschnecken Nord- und Mitteleuropas. Ein Bestimmungsbuch für Biologen und Naturfreunde, 384 pp., 24 plates. [Summer or later]. Hamburg / Berlin
• Bank, R. A.; Neubert, E. (2017). Checklist of the land and freshwater Gastropoda of Europe. Last update: July 16, 2017.
• Sysoev, A. V. & Schileyko, A. A. (2009). Land snails and slugs of Russia and adjacent countries. Sofia/Moskva (Pensoft). 312 pp., 142 plates.