Carychium minimum

Carychium minimum
Shell of Carychium minimum
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
(unranked): clade Heterobranchia

clade Euthyneura
clade Panpulmonata
clade Eupulmonata

Superfamily: Ellobioidea
Family: Ellobiidae
Subfamily: Carychiinae
Genus: Carychium
Species: C. minimum
Binomial name
Carychium minimum
O. F. Müller, 1774[1]

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 mm. The height of the shell is 1.6-2.2 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.[2]

drawing of shells of Carychium minimum

Distribution

The distribution of Carychium minimum is Euro-Asiatic.[3]

References

  1. 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).
  2. 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.
  3. 1 2 3 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.
  4. 1 2 3 4 5 6 7 "Carychium (Carychium) minimum O.F. Muller 1774". Fauna Europaea, last update 29 August 2013, version 2.6.2, accessed 12 A[ril 2016.
  5. 1 2 3 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". Version 2.3.1.
  6. Balashov I. & Gural-Sverlova N. (2012). "An annotated checklist of the terrestrial molluscs of Ukraine". Journal of Conchology 41(1): 91-109.
  7. 1 2 3 "Caucasian Land Snails". accessed May 2, 2014.
  8. 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.
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