Columella is a genus of very small, air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Truncatellinidae, the whorl snails and allies.
Taxonomy Columella is commonly classified within the Vertiginidae. However, as shown by Nekola & Coles (2016), the genus is not that closely related to the Vertiginidae, but may rather be affiliated with the Chondrinidae or form a pupilloid family of its own. A systematic revision is pending.
Species Species within the genus Columella include: Columella acicularis Almuhambetova, 1979 Columella aspera Waldén, 1966 Columella columella (G. v. Martens, 1830) Columella edentula (Draparnaud, 1805) - toothless column Columella hartmutnordsiecki Schlickum & Geissert, 1980 Columella hasta (Hanna, 1911) Columella intermedia Schileyko & Almuhambetova, 1984 Columella microspora (R.T. Lowe, 1852) Columella nymphaepratensis Hlaváč & Pokryszko, 2009 Columella polvonense (Pilsbry, 1894) Columella simplex (Gould, 1840) Columella talgarica Schileyko & Rymzhanov, 2010 Columella wyciski Schlickum & Strauch, 1972 Species brought into synonymy Columella inornata (Michaud, 1831): synonym of Columella edentula (Draparnaud, 1805) (junior synonym) Columella ninagongonis Pilsbry, 1935: synonym of Truncatellina ninagongonis (Pilsbry, 1935) (original combination) Columella tridentata A. B. Leonard, 1946: synonym of Gastrocopta ruidosensis (Cockerell, 1899)
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