Distribution data supplied by the Ocean Biodiversity Information System (OBIS). To interrogate UK data visit the NBN Atlas.Map Help
|Researched by||Sonia Rowley||Refereed by||This information is not refereed|
|Other common names||Velvety mail chiton||Synonyms||-|
Acanthochitona fascicularis is an oval-shaped chiton with a flattened elongated body 6 cm in length. Its width is half that of its length. The body is protected by a shell composed of eight interlocked transverse, coarsely keeled plates or valves. The valves on the shell are strongly arched and, when viewed under a hand-lens, appear coarsely granular due to densely packed and evenly arranged dorsal papillae. The colour varies; marbled with off-white, grey, yellowish or brown. This species has a broad and spiny girdle with 18 dense tufts of long bristles (up to 1.5 mm long), four of which are in an arc around the head valve. The surface is covered with recumbent spines, making it feel velvety to the touch. The girdle is fringed with spines, up to 1 mm in length.
'Coat-of-mail' shells (chitons) get their name from the armoured appearance of the valves like links in chain mail. This species is larger than Acanthochitona crinita but the two are very similar and therefore easily confused. Acanthochitona fascicularis has finer shell valves with more regular granulation. This species is a grazer, feeding on encrusting or filamentous algae and possibly bryozoans.
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Fenwick, 2018. Aphotomarine. Occurrence dataset http://www.aphotomarine.com/index.html Accessed via NBNAtlas.org on 2018-10-01
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Kent Wildlife Trust, 2018. Kent Wildlife Trust Shoresearch Intertidal Survey 2004 onwards. Occurrence dataset: https://www.kentwildlifetrust.org.uk/ accessed via NBNAtlas.org on 2018-10-01.
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NBN (National Biodiversity Network) Atlas. Available from: https://www.nbnatlas.org.
OBIS (Ocean Biodiversity Information System), 2023. Global map of species distribution using gridded data. Available from: Ocean Biogeographic Information System. www.iobis.org. Accessed: 2023-03-24
South East Wales Biodiversity Records Centre, 2018. SEWBReC Molluscs (South East Wales). Occurrence dataset: https://doi.org/10.15468/jos5ga accessed via GBIF.org on 2018-10-02.
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Last Updated: 03/06/2008