Alinda biplicata

Alinda biplicata
	Shell of Alinda biplicata
Conservation status
	; Least Concern (IUCN 3.1)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Mollusca
Class:	Gastropoda
Order:	Stylommatophora
Family:	Clausiliidae
Genus:	Alinda
Species:	A. biplicata
Binomial name
	Alinda biplicata; (Montagu, 1803)
Synonyms
	Turbo biplicata Montagu, 1803; Balea biplicata (Montagu, 1803); Laciniaria biplicata;

Alinda biplicata,^[3]^[4] also known as Balea biplicata, common name the two lipped door snail or Thames door snail, is a species of air-breathing land snail, a terrestrial pulmonate gastropod mollusk in the family Clausiliidae, the door snails, all of which have a clausilium.

Distribution

This species is known to occur in a number of European countries and islands including:

This species is rare in Great Britain. In England, it is found mainly in the London area, almost exclusively along the River Thames, and is particularly preserved at Isleworth Ait.^[5] There is also a colony at Purfleet in Essex.^[6]

Description

Like all species in this family, this snail has a clausilium. This spoon-shaped "door" is supported by, and slides in, a series of internal shell folds, see the image below.

The weight of the adult live snail is 148.6±5.7 mg.^[7]

References

^ Kappes, H. (2017). "Alinda biplicata". IUCN Red List of Threatened Species. 2017. Retrieved 1 May 2018.{{cite iucn}}: old-form url (help)
^ Montagu, G. (1803). Testacea Britannica, or natural history of British shells. pp. I-XXXVIII [= 1-38], 1-606, [1-4], pl. 1-16. London.
^ Kantor Yu I., Vinarski M. V., Schileyko A. A. & Sysoev A. V. (published online on March 2, 2010). "Catalogue of the continental mollusks of Russia and adjacent territories". http://www.ruthenica.com/documents/Continental_Russian_molluscs_ver2-3-1.pdf Version 2.3.1.
^ fauna-eu.org "Alinda (Alinda) biplicata (Montagu 1803)". Fauna Europaea, last update 27 January 2011, accessed 17 April 2011.
^ Rare snail habitat is protected. BBC News, last updated: Thursday, 22 February 2007, 11:16 GMT.
^ Water Island Sanctuary For Sweaty, Hairy Snails Becomes London's Latest Local Nature Reserve 22 Feb 07^{[permanent dead link‍]}
^ Boch S., Prati D., Werth S., Rüetschi J. & Fischer M. (2011). "Lichen Endozoochory by Snails". PLOS One 6(4): e18770. doi:10.1371/journal.pone.0018770.

External links

Balea biplicata at AnimalBase
Balea biplicata at BioLib with images and synonyms
images
Photo of a mating pair: [1]
Sulikowska-Drozd A., Maltz T. K. & Kappes H. (2013). "Brooding in a temperate zone land snail: seasonal and regional patterns". Contributions to Zoology 82(2): http://www.ctoz.nl/vol82/nr02/a02

[iucn-1] Kappes, H. (2017). "Alinda biplicata". IUCN Red List of Threatened Species. 2017. Retrieved 1 May 2018.{{cite iucn}}: old-form url (help)

[2] Montagu, G. (1803). Testacea Britannica, or natural history of British shells. pp. I-XXXVIII [= 1-38], 1-606, [1-4], pl. 1-16. London.

[Kantor_2010-3] Kantor Yu I., Vinarski M. V., Schileyko A. A. & Sysoev A. V. (published online on March 2, 2010). "Catalogue of the continental mollusks of Russia and adjacent territories". http://www.ruthenica.com/documents/Continental_Russian_molluscs_ver2-3-1.pdf Version 2.3.1.

[4] una-eu.org "Alinda (Alinda) biplicata (Montagu 1803)". Fauna Europaea, last update 27 January 2011, accessed 17 April 2011.

[5] Rare snail habitat is protected. BBC News, last updated: Thursday, 22 February 2007, 11:16 GMT.

[6] Water Island Sanctuary For Sweaty, Hairy Snails Becomes London's Latest Local Nature Reserve 22 Feb 07^{[permanent dead link‍]}

[7] Boch S., Prati D., Werth S., Rüetschi J. & Fischer M. (2011). "Lichen Endozoochory by Snails". PLOS One 6(4): e18770. doi:10.1371/journal.pone.0018770.

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