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Image of Smooth European Chiton
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Smooth European Chiton

Callochiton septemvalvis (Montagu 1803)

Habitat

provided by World Register of Marine Species
Known from seamounts and knolls
license
cc-by-4.0
copyright
WoRMS Editorial Board
bibliographic citation
Stocks, K. 2009. Seamounts Online: an online information system for seamount biology. Version 2009-1. World Wide Web electronic publication.
i18n: Contributor
[email]

Description

provided by Zookeys
Moderate size (up to 22 × 14 mm), dorsal elevation ratio = 0.35 to 0.46, oval, valves beaked. Tegmentum very finely granulose, orange to brick red, often with white markings, or with shades of green, bright yellow, or bright orange. Intermediate valves rectangular. Sculpture smooth and glossy to the naked eye, diagonally set with black dots (the pigment cups of the ‘shell-eyes’); under magnification the valves are sculptured with small granules arranged in quincunx. Wide girdle, usually about 1/3 of the animal’s total width and covered in spicules, with a short marginal fringe of spicules. The girdle is coloured yellow or orange with red markings.
license
cc-by-3.0
copyright
Sérgio P. Ávila, Julia Sigwart
bibliographic citation
Ávila S, Sigwart J (2013) New records for the shallow-water chiton fauna (Mollusca, Polyplacophora) of the Azores (NE Atlantic) ZooKeys 312: 23–38
author
Sérgio P. Ávila
author
Julia Sigwart
original
visit source
partner site
Zookeys

Distribution

provided by Zookeys
All Atlantic coasts of Europe, from Scandinavia, Britain and Ireland, south to the Mediterranean Sea, Morocco (Kaas 1991), Azores and Canary Islands (Kaas and Van Belle 1985b). From shallow subtidal to 500 m depth, usually on red algae and other hard substrates (Poppe and Goto 1991). The animals can be extremely cryptic, grazing on the underside of stones and small boulders where their colours proved good camouflage.
license
cc-by-3.0
copyright
Sérgio P. Ávila, Julia Sigwart
bibliographic citation
Ávila S, Sigwart J (2013) New records for the shallow-water chiton fauna (Mollusca, Polyplacophora) of the Azores (NE Atlantic) ZooKeys 312: 23–38
author
Sérgio P. Ávila
author
Julia Sigwart
original
visit source
partner site
Zookeys