Biology:Carychium tridentatum

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Short description: Species of gastropod

Carychium tridentatum
Carychium tridentatum 01.jpg
Apertural view of shell
Scientific classification edit
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Subclass: Heterobranchia
Order: Ellobiida
Superfamily: Ellobioidea
Family: Ellobiidae
Subfamily: Carychiinae
Genus: Carychium
Species:
C. tridentatum
Binomial name
Carychium tridentatum
(Risso, 1826)[1]

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

Description

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).

Drawing of shells of Carychium tridentatum that have been broken open to show the internal structure.

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)[2]

The European countries include:

  • Belgium
  • Bulgaria
  • Czech Republic
  • Netherlands
  • Poland
  • Slovakia
  • Great Britain
  • Ireland
  • Ukraine[3]

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 .[4]

It has been introduced to North America, including to:

References

  1. 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).
  2. Worldwide Mollusc Species Database
  3. Balashov I. & Gural-Sverlova N. 2012. An annotated checklist of the terrestrial molluscs of Ukraine. Journal of Conchology. 41 (1): 91-109.
  4. 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
  5. Forsyth, R.G. & Williston, P. 2012. Terrestrial snails from an urban park in Vancouver, British Columbia. The Festivus 44(7):77-80. [1]

External links

Wikidata ☰ Q774673 entry