Columella edentula

Columella edentula, common name the "toothless column snail", is a species of very small, air-breathing land snail, a terrestrial pulmonate gastropod mollusk or micromollusk in the family Truncatellinidae. [2]

Columella edentula
Six shells of Columella edentula, scale bar in mm
Scientific classification
Kingdom:
Animalia
Phylum:
Mollusca
Class:
Gastropoda
(unranked):
clade Heterobranchia
clade Euthyneura
clade Panpulmonata
clade Eupulmonata
clade Stylommatophora
clade Orthurethra
Superfamily:
Pupilloidea
Family:
Truncatellinidae
Genus:
Columella
Species:
C. edentula
Binomial name
Columella edentula
Synonyms
  • Columella inornata (Michaud, 1831) (junior synonym)
  • Pupa edentula Draparnaud, 1805 (original combination)
  • Pupa inornata Michaud, 1831 (junior synonym)

Description

The 2.5-3 (-3.5) mm. shell is cylindrical with a conical apex and yellow-brown to brown. The aperture is without teeth and the simple lip is thin. The shell has (4.5 )5-6 (-7) whorls. The last whorl has the largest diameter. The apex is more pointed than in Columella columella. It is narrower and taller than the shell of the similar Columella aspera. The shell sculpture is more irregular and finer than that of C. aspera.

Details of the shell of Columella edentula

Distribution

This species occurs in countries and islands including:

References
  1. Draparnaud, J.-P.-R. 1805. Histoire naturelle des mollusques terrestres et fluviatiles de la France. Ouvrage posthume. Avec XIII planches. - pp. [1-9], j-viij [= 1-8], 1-134, [Pl. 1-13]. Paris, Montpellier. (Plassan, Renaud).
  2. MolluscaBase eds. (2020). MolluscaBase. Columella edentula (Draparnaud, 1805). Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=934397 on 2020-08-30
  3. Balashov I. & Gural-Sverlova N. 2012. An annotated checklist of the terrestrial molluscs of Ukraine. Journal of Conchology. 41 (1): 91-109.
  • Minato, H. (1988). A systematic and bibliographic list of the Japanese land snails. H. Minato, Shirahama, 294 pp., 7 pls.
  • National Institute of Biological Resources. (2019). National Speices list of Korea. II. Vertebrates, Invertebrates, Protozoans. Designzip. 908 pp. page(s): 338
  • 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.
  • Sysoev, A. V. & Schileyko, A. A. (2009). Land snails and slugs of Russia and adjacent countries. Sofia/Moskva (Pensoft). 312 pp., 142 plates


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