Clausilia bidentata

Clausilia bidentata
Clausilia bidentata
Clausilia bidentata var. crenulata
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
(unranked): clade Heterobranchia

clade Euthyneura
clade Panpulmonata
clade Eupulmonata
clade Stylommatophora
informal group Sigmurethra
Superfamily: Clausilioidea
Family: Clausiliidae
Genus: Clausilia
Species: C. Bidentata
Binomial name
Clausilia bidentata
(Strøm, 1765)
Synonyms
  • Clausilia nigricans Maton & Rackett, 1807

Clausilia bidentata, the 'Two Toothed Door Snail' is a species of door snails, terrestrial pulmonate gastropod mollusks in the genus Clausilia belonging to the familyClausiliidae, all of which have a clausilium.


Contents

Distribution

This species is known to occur in most of European countries, including:


Description

It is a small cylindrical snail, long and thin. The shell size reaches 10–11 millimetres (0.39–0.43 in) of length. It is dark brown with evident spiral ribs, slight longitudinal grooves and a horny operculum.


Gallery

Clausilia bidentata var. crenulata – Close-up
Lateral view of the shell of Clausilia bidentata crenulata.
Clausilia bidentata var. crenulata.
Clausilia bidentata var. crenulata, close-up.


Habitat

This species is commonly found under bark of trees or in crevices of rocks.

These snails can mainly be encountered by night with wet weather, when they usually climb up the trees and feed on lichens.

Subspecies

  • Clausilia bidentata abietina Dupuy, 1849
  • Clausilia bidentata bidentata (Ström, 1765)
  • Clausilia bidentata crenulata Risso, 1826
  • Clausilia bidentata moniziana Lowe, 1852


References

  • Strøm H. 1765. Beskrivelse over Norske insecter, første stykke. Det Trondhiemske Selskabs Skrifter 3: 376-439, Tab. VI [= 6]. Kiøbenhavn
  • Anderson, R. 2005, An Annotated List of the Non-Marine Mollusca of Britain and Ireland, Journal of Conchology, London, 38: 607-638
  • Kerney, M, 1999, Atlas of the Land and Freshwater Molluscs of Britain and Ireland, , Harley Books, Colchester

External links


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