Carychium tridentatum

{{Short description|Species of gastropod}}

{{Speciesbox

| image = Carychium_tridentatum_01.jpg

| image_caption = Apertural view of shell

| taxon = Carychium tridentatum

| authority = (Risso, 1826)Risso, A. 1826: Histoire naturelle des principales productions de l'Europe méridionale et particulièrement de celles des environs de Nice et des Alpes Maritimes. Tome quatrième. - pp. [1-3], j-vij [= 1-7], 1-439, pl. [1-12]. Paris. (Levrault).

}}

Carychium tridentatum is a species of small air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Ellobiidae.

Description

File:Carychium tridentatum 02.jpg

The shell is 1.8-2.3 mm high x 0.8-0.9mm. wide. The shell is more slender than that of Carychium minimum. If the last whorl above the aperture is opened this shows the parietalis (a spiral ridge on the parietal region projecting into the interior of the shell) descending in a characteristic double curve (see figure below).

File:Carychium tridentatum (with plicae shown).png

Distribution

This species occurs in European countries and islands the Mediterranean, the Caucasus region and North Africa. It is

recorded from Siberia as Carychium striolatum J.R. Bourguignat, 1857 (synonym)[http://www.bagniliggia.it/WMSD/HtmSpecies/3540000045.htm Worldwide Mollusc Species Database]

The European countries include:

Albania, Andorra, Austria, Azores, Belarus, Bulgaria, Channel Islands

, Croatia, Denmark, Estonia, Finland, France, Germany, Greece, Hungary,

Italy, Kaliningrad, Latvia, Liechtenstein, Lithuania, Luxembourg, Madeira, Moldova, Montenegro, Norway, Romania, Serbia, Slovenia,

Spain, Sweden, Switzerland.Welter-Schultes, F. W. 2012. European non-marine molluscs, a guide for species identification. Bestimmungsbuch für europäische Land- und Süsswassermollusken. Planet Poster Editions, Göttingen. {{ISBN|978-3-933922-75-5}}

It has been introduced to North America, including to:

  • British Columbia, CanadaForsyth, R.G. & Williston, P. 2012. Terrestrial snails from an urban park in Vancouver, British Columbia. The Festivus 44(7):77-80. [http://www.mollus.ca/publications/Forsyth_Williston_2012.pdf] {{Webarchive|url=https://web.archive.org/web/20140102194433/http://www.mollus.ca/publications/Forsyth_Williston_2012.pdf |date=2014-01-02 }}

References

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