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Key to Irish Chitons
Species Description


Boreochiton ruber (Linnaeus, 1767) [back to the Key] | [next] | [previous]
Length: 10-15 mm long, 6-9 mm wide

Tegmentum colour: orange to pinkish, generally with small blotches of reddish-brown.

Sculpture: smooth to the naked eye, small granules are apparent under high magnification; valves distinctly beaked.

Girdle: Relatively narrow and covered by small scales, appearing sandy to the naked eye. Coloured like tegmentum, but sometimes with white or cream markings particularly in the sutures.

Bathymetric range: intertidal to sublittoral

Geographic range: an artic-boreal species, found in the North Atlantic and North Pacific. In the north-eastern Atlantic Ocean, found from Greenland and Scandinavia to Britain and Ireland; found also in the Western Atlantic down to Connecticut, and in the North Pacific from the Bering Sea to northern Japan.

Similar species: Tonicella marmorea


Taxonomy and Synonymy:

ORDER: Chitonida Thiele, 1909

FAMILY: Tonicellidae Simroth, 1894

GENUS: TONICELLA Carpenter, 1873

Boreochiton ruber  (Linnaeus, 1767)


List of synonymised names available at:


For more information on this species, see:

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