{{Short description|Species of gastropod}} {{speciesbox | image = Carychium_minimum_01.jpg | image_caption = Shell of ''Carychium minimum'' | status = G5 | status_system = TNC | status_ref = <ref name=NS>{{cite NatureServe |id=2.110227 |title=''Carychium minimum'' |access-date=30 March 2026}}</ref> | genus = Carychium | species = minimum | authority = Müller, 1774<ref>Müller O. F. (1774). ''Vermivm terrestrium et fluviatilium, seu animalium infusoriorum, helminthicorum, et testaceorum, non marinorum, succincta historia''. Volumen alterum. - pp. I-XXVI [= 1-36], 1-214, [1-10]. Havniæ & Lipsiæ. (Heineck & Faber).</ref> | synonyms = {{Species list |Carychium ovatum|Sandberger, 1880}} | synonyms_ref = <ref name=WoRMS>{{cite WoRMS |id=933400 |title=''Carychium minimum'' O. F. Müller, 1774 |db=mollusc |access-date=11 April 2026}}</ref> }}

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

==Description== The width of the shell is 0.9-1.1&nbsp;mm. The height of the shell is 1.6-2.2&nbsp;mm. It is wider than the shell of ''Carychium tridentatum'' which it closely resembles. As in ''C. tridentatum'' shell is dull white and cylindrical and the mouth is oval with two denticles and a thickened lip. However if the last whorl above the aperture is opened this shows the plica parietalis (a spiral ridge on the parietal region projecting into the interior of the shell) descending in a simple way downwards.<ref name="Welter-Schultes 2012">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}}.</ref> left|thumb|drawing of shells of ''Carychium minimum''

== Distribution == The distribution of ''Carychium minimum'' is Euro-Asiatic.<ref name="Horsák 2013">Horsák M., Juřičková L. & Picka J. (2013). ''Měkkýši České a Slovenské republiky. Molluscs of the Czech and Slovak Republics''. Kabourek, Zlín, 264 pp., page 30, page 63.</ref>

* Northern Europe: Denmark, Finland, Norway, Sweden.<ref name="FE">[http://fauna.naturkundemuseum-berlin.de/full_results.php?id=421928 "''Carychium'' (''Carychium'') ''minimum'' O.F. Muller 1774"] {{Webarchive|url=https://web.archive.org/web/20160304093453/http://fauna.naturkundemuseum-berlin.de/full_results.php?id=421928 |date=2016-03-04 }}. Fauna Europaea, last update 29 August 2013, version 2.6.2, accessed 12 April 2016.</ref> * Western Europe: Belgium, France and Corsica, Great Britain and Channel Islands, Ireland, Luxembourg, Netherlands, Switzerland.<ref name="FE"/> * Central Europe: Austria, Czech Republic,<ref name="Horsák 2013"/> Germany, Hungary, Liechtenstein, Poland, Slovakia,<ref name="Horsák 2013"/> Slovenia.<ref name="FE"/> * Southern Europe: Greece including North Aegean islands, Italy.<ref name="FE"/> * Southeastern Europe: Albania, Bosnia-Herzegovina, Bulgaria, Croatia, Montenegro, Romania, Serbia.<ref name="FE"/> * Southwestern Europe: Andorra, Portugal including Azores and Madeira, Spain.<ref name="FE"/> * Eastern Europe: Belarus, Crimea,<ref name="Kantor 2010"/> Estonia, Kaliningrad, Latvia, Lithuania, Moldova, Ukraine,<ref name="FE"/><ref name=" Balashov">Balashov I. & Gural-Sverlova N. (2012). "An annotated checklist of the terrestrial molluscs of Ukraine". ''Journal of Conchology'' '''41'''(1): 91-109.</ref> European Russia.<ref name="Kantor 2010">Kantor Yu I., Vinarski M. V., Schileyko A. A. & Sysoev A. V. (published online on March 2, 2010). "Catalogue of the continental mollusks of Russia and adjacent territories". [http://www.ruthenica.com/documents/Continental_Russian_molluscs_ver2-3-1.pdf Version 2.3.1.]</ref> * Southwestern Asia: Turkey,{{citation needed|date=April 2016}} Armenia,<ref name="caucasus 2014"/> Azerbaijan,<ref name="caucasus 2014"/> Georgia<ref name="caucasus 2014">[http://www.caucasus-snails.uni-hamburg.de/CaucasianLandSnails-Dateien/Checklist.html "Caucasian Land Snails"] {{Webarchive|url=https://web.archive.org/web/20140303183715/http://www.caucasus-snails.uni-hamburg.de/CaucasianLandSnails-Dateien/Checklist.html# |date=2014-03-03 }}. accessed May 2, 2014.</ref> * Western Siberia<ref>Horsák M. & Chytrý M. (2014). "Unimodal Latitudinal Pattern of Land-Snail Species Richness across Northern Eurasian Lowlands". ''PLoS ONE'' '''9'''(8): e104035. {{doi|10.1371/journal.pone.0104035|doi-access=free}}.</ref> * Central Asia: northern, central, and eastern Kazakhstan<ref name="Kantor 2010"/> * North America - introduced: Canada (British Columbia, Ontario, New Brunswick); USA (California, Massachusetts, New York, Pennsylvania)<ref>Forsyth R.G. (2015). "First record of ''Carychium minimum'' Müller, 1774 in New Brunswick, Canada (Mollusca: Gastropoda: Ellobioidea)". ''Check List'' '''11'''(1): 1-4. {{doi|10.15560/11.1.1511|doi-access=free}}.</ref>

==References== {{Reflist}}

==External links== {{Commons category|Carychium minimum}} *[http://www.animalbase.uni-goettingen.de/zooweb/servlet/AnimalBase/home/species?id=1652 ''Carychium minimum''] at Animalbase *[http://www.habitas.org.uk/molluscireland/species.asp?ID=50 MolluscIreland]

{{Taxonbar|from=Q194925}}

Category:Ellobiidae Category:Gastropods described in 1774 Category:Taxa named by Otto Friedrich Müller