Columella (genus) explained

Columella is a genus of very small, air-breathing land snails, terrestrial pulmonate gastropod mollusks in the family Truncatellinidae, the whorl snails and allies. ^[1]

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)

Notes and References

1. MolluscaBase eds. . 2020 . Columella . 934312 . 22 September 2021.