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Clausilia bidentata

(Redirected from Two-toothed door snail)

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
Clausilia bidentata var. crenulata
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Mollusca
Class: Gastropoda
Order: Stylommatophora
Family: Clausiliidae
Genus: Clausilia
Species:
C. bidentata
Binomial name
Clausilia bidentata
(Strøm, 1765)
Synonyms
  • Turbo Bidentatus Strøm, 1765[2]
  • Clausilia nigricans Maton & Rackett, 1807

Subspecies

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

Distribution

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This species is present in much of western Europe,[1] including:

Habitat

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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

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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.

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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.
 

References

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  1. ^ 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.
  2. ^ 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
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