Clausilia bidentata, the two-toothed door snail, is a species of door snails, terrestrial pulmonate gastropod mollusks in the genus Clausilia belonging to the family Clausiliidae, all of which have a clausilium.
| Clausilia bidentata | |
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| Clausilia bidentata var. crenulata | |
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| (unranked): | clade Heterobranchia
clade Euthyneura |
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| Species: | C. bidentata
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| Binomial name | |
| Clausilia bidentata (Strøm, 1765)
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| Synonyms | |
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Subspecies edit
- Clausilia bidentata abietina Dupuy, 1849
- Clausilia bidentata bidentata (Ström, 1765)
- Clausilia bidentata crenulata Risso, 1826
- Clausilia bidentata moniziana Lowe, 1852
Distribution edit
This species is present in much of western Europe,[1] including:
- Czech Republic - in Bohemia only
- Great Britain
- Ireland
Habitat edit
This species is commonly found under bark of trees or in crevices of rocks. The snails are often encountered when they are most active, at night during wet weather, at which time they often climb up trees and feed on lichens.
Description edit
The shell of this snail is a small and cylindrical snail, very high-spired and narrow. The shell length reaches 10–11 millimetres (0.39–0.43 in). The shell is dark brown with noticeable spiral ribs, slight longitudinal grooves, and a horny operculum.
Gallery edit
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References edit
- ^ a b Seddon, M.B. (2017). "Clausilia bidentata". IUCN Red List of Threatened Species. 2017: e.T171591A1328595. doi:10.2305/IUCN.UK.2017-3.RLTS.T171591A1328595.en. Retrieved 19 November 2021.
- ^ Strøm, H. (1765). "Beskrivelse over Norske insecter, første stykke". Det Trondhiemske Selskabs Skrifter. 3: 376–439, Tab. VI.
- 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 edit
- Clausilia bidentata at Animalbase taxonomy,short description, distribution, biology,status (threats), images
- Fauna Europaea
- Biolib
- Habitas
- Naturespot
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