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Classification
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Latin name : |
Necora puber (Linnaeus, 1767) |
Synonyms : |
Liocarcinus puber (Linnaeus, 1758)
Macropipus puber (Linnaeus, 1758)
Portunus puber (Linnaeus, 1758) |
Classification : |
Crustacea [ Brünnich, 1772 ] ( Crustaceans ) |
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Name : |
Etrille commune
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Name : |
Velvet fiddler crab
Velvet swimcrab
Devil crab
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Identification
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Main identification characters |
A fast moving swimming crab, blue in colour but obscured by a brown pubescence with red prominences. The dorsal surface has a finely velvety texture and the eyes are red. It grows to about 8cm.
Key identification features:
* Carapace dorsal surface flattened and pubescent.
* Frontal margin with up to 10 narrow unequal teeth, middle two often larger.
* Antero-lateral margin with five sharp, forward-pointing teeth.
* Chelipeds equal, strong, pubescent. |
Possible confusions |
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Biology
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Feed |
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Cycle of life / Reproduction |
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Interaction with other species |
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Distribution
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Habitat |
Rocks |
Sand |
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Found on stony and rock substrata intertidally and in shallow water, most abundant on moderately sheltered shores. |
Geographical distribution |
Atlantic ocean (British, Irish and French coasts), Mediteranean sea (rare). |
Links
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Websites : |
http://www.cabuzel.com/oleron/crustace.php3
http://www.fao.org/docrep/x0169f/x0169f5t.htm
http://www.marlin.ac.uk/index2.htm?demo/Necpub.htm
http://www.sb-roscoff.fr/Ecoles/Projet/fiches/etrille.html
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Bibliography
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Découvrir l'Atlantique, la Manche et la mer du Nord
Steven Weinberg
Editions Nathan 1994
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Data sheet written by Chris , 18/09/2002
Updates :
Christophe Naslain - 18/09/2002 Christophe Naslain - 02/08/2003
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