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) [1]
Synonyms
Columella inornata(Michaud, 1831) (junior synonym) Pupa edentulaDraparnaud, 1805 (original combination) Pupa inornataMichaud, 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.

Details of the shell of Columella edentula

Distribution

This species occurs in countries and islands including:

• Great Britain
• Ireland
• Ukraine ^[3]

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