Columella edentula

Columella edentula
	Six shells of Columella edentula, scale bar in mm
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Order:	Stylommatophora
Family:	Truncatellinidae
Genus:	Columella
Species:	C. edentula
Binomial name
	Columella edentula; (Draparnaud, 1805)
Synonyms
	Columella inornata (Michaud, 1831) (junior synonym); Pupa edentula Draparnaud, 1805 (original combination); Pupa inornata Michaud, 1831 (junior synonym);

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]

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.

Distribution

This species occurs in countries and islands including:

References

^ 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).
^ MolluscaBase eds. (2021). "Columella edentula". WoRMS. World Register of Marine Species. Retrieved 21 September 2021. {{cite web}}: |author= has generic name (help)
^ 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 Species 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

External links

Columella edentula at Animalbase taxonomy,short description, distribution, biology,status (threats), images
Draparnaud, J.-P.-R. (1805). Histoire naturelle des mollusques terrestres et fluviatiles de la France. 2 pp. (Avertissement a sa Majesté l'Impératrice), 2 pp. Rapport, i-viii (Préface), 1-164, pl. 1-13, 1 p. Errata
Schileyko, A. A. & Rymzhanov, T. S. (2013). Fauna of land mollusks (Gastropoda, Pulmonata Terrestria) of Kazakhstan and adjacent territories. Moscow-Almaty: KMK Scientific Press. 389 pp^[usurped]

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[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).

[WoRMS-2] MolluscaBase eds. (2021). "Columella edentula". WoRMS. World Register of Marine Species. Retrieved 21 September 2021. {{cite web}}: |author= has generic name (help)

[Balashov-3] Balashov I. & Gural-Sverlova N. 2012. An annotated checklist of the terrestrial molluscs of Ukraine. Journal of Conchology. 41 (1): 91-109.

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