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Balanus perforatus

Brugiére, 1789

Rock barnacles

Classification
Identification
Biology
Distribution
Links
Bibliography

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Classification   {MSG_BIOLOGY_LISTE_CATEGORIES}
Latin name : Balanus perforatus ( Brugiére, 1789)
Synonyms :
Classification : Crustacea [ Brünnich, 1772 ] ( Crustaceans )
 
Name : Balane
Name : Rock barnacles
Identification   {MSG_BIOLOGY_LISTE_CATEGORIES}
Main identification characters
Up to 30 mm in diameter and 30 mm tall, Balanus perforatus is recognised by its tapered, volcano-like shape. The shell wall consists of 6 purplish plates that are often vertically ridged, and sometimes separated at the apex leaving a jagged lip. Inside the operculum aperture, the tissue is marked with bright colours of pink, purple and blue. The tergoscutal flaps are brown to purple in colour, with blue and white spots.
Possible confusions
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Biology   {MSG_BIOLOGY_LISTE_CATEGORIES}
Feed
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Cycle of life / Reproduction
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Interaction with other species
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Distribution   {MSG_BIOLOGY_LISTE_CATEGORIES}
Habitat

Rocks
Balanus perforatus is found from the mid-shore to the sublittoral on rocks and artificial structures and is sometimes common in wave exposed situations. Also present on ships' hulls.
Geographical distribution
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Links   {MSG_BIOLOGY_LISTE_CATEGORIES}
Websites :
http://limouz1.free.fr/biologie_atl/balane.htm
http://www.ifremer.fr/envlit/photos/Archive/200208/photo27_2.htm
http://www.marlin.ac.uk/index2.htm?species/Balper.htm
http://www.univ-lehavre.fr/cybernat/pages/balaperf.htm

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Bibliography   {MSG_BIOLOGY_LISTE_CATEGORIES}
N/A
Data sheet written by Christophe Naslain , 21/07/2003

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