Clausilia bidentata
| Clausilia bidentata | |
|---|---|
 | |
| Clausilia bidentata var. crenulata | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Gastropoda |
| (unranked): | clade Heterobranchia
clade Euthyneura |
| Superfamily: | Clausilioidea |
| Family: | Clausiliidae |
| Genus: | Clausilia |
| Species: | C. Bidentata |
| Binomial name | |
| Clausilia bidentata (Strøm, 1765) | |
| Synonyms | |
| |
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.
Distribution
This species is known to occur in most European countries, including:
- Czech Republic - in Bohemia only
- Great Britain
- Ireland
Description
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
 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. 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.
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
- Clausilia bidentata at Animalbase taxonomy,short description, distribution, biology,status (threats), images
- Fauna Europaea
- Biolib
- Habitas
- Naturespot