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''Alinda biplicata'', 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 molluscs, terrestrial pulmonate gastropod mollusk in the family Clausiliidae, the door snails, all of which have a clausilium.
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.
* List of non-marine molluscs of the Czech Republic, Czech Republic
* List of non-marine molluscs of Poland, Poland
* List of non-marine molluscs of Slovakia, Slovakia
* List of non-marine molluscs of Hungary, Hungary
* List of non-marine molluscs of Romania, Romania
* List of non-marine molluscs of Bulgaria, Bulgaria
* List of non-marine molluscs of Greece, Greece
* List of non-marine molluscs of Slovenia, Slovenia
* List of non-marine molluscs of Croatia, Croatia
* List of non-marine molluscs of Serbia, Serbia
* List of non-marine molluscs of Switzerland, Switzerland
* List of non-marine molluscs of Austria, Austria
* List of non-marine molluscs of Germany, Germany
* List of non-marine molluscs of France, France
* List of non-marine molluscs of Belgium, Belgium
* List of non-marine molluscs of the Netherlands, Netherlands
* List of non-marine molluscs of Denmark, Denmark
* List of non-marine molluscs of Sweden, Sweden
* List of non-marine molluscs of Great Britain, Great Britain
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. There is also a colony at Purfleet in Essex.
''Balea biplicata'' at AnimalBase
''Balea biplicata'' at BioLib with images and synonyms
* Photo of a mating pair
* 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 {{Taxonbar, from2=Q1500674, from1=Q41169308 Alinda, biplicata Gastropods of Europe Gastropods described in 1803 Taxa named by George Montagu (naturalist)
Distribution
This species is known to occur in several European countries and islands, including:
* List of non-marine molluscs of the Czech Republic, Czech Republic
* List of non-marine molluscs of Poland, Poland
* List of non-marine molluscs of Slovakia, Slovakia
* List of non-marine molluscs of Hungary, Hungary
* List of non-marine molluscs of Romania, Romania
* List of non-marine molluscs of Bulgaria, Bulgaria
* List of non-marine molluscs of Greece, Greece
* List of non-marine molluscs of Slovenia, Slovenia
* List of non-marine molluscs of Croatia, Croatia
* List of non-marine molluscs of Serbia, Serbia
* List of non-marine molluscs of Switzerland, Switzerland
* List of non-marine molluscs of Austria, Austria
* List of non-marine molluscs of Germany, Germany
* List of non-marine molluscs of France, France
* List of non-marine molluscs of Belgium, Belgium
* List of non-marine molluscs of the Netherlands, Netherlands
* List of non-marine molluscs of Denmark, Denmark
* List of non-marine molluscs of Sweden, Sweden
* List of non-marine molluscs of Great Britain, Great Britain
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. There is also a colony at Purfleet in Essex.
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 149±6 mg.References
External links
''Balea biplicata'' at AnimalBase
''Balea biplicata'' at BioLib with images and synonyms
* Photo of a mating pair
* 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 {{Taxonbar, from2=Q1500674, from1=Q41169308 Alinda, biplicata Gastropods of Europe Gastropods described in 1803 Taxa named by George Montagu (naturalist)