MarLIN

information on the biology of species and the ecology of habitats found around the coasts and seas of the British Isles

A sea slug (Atagema gibba)

Distribution data supplied by the Ocean Biogeographic Information System (OBIS). To interrogate UK data visit the NBN Atlas.

Summary

Description

A sea slug that grows up to 68mm in length. The body is chocolate brown in colour and has small white protrusions all over it to form a net-like pattern which feels stiff and velvety to the touch. It has finger-like oral tentacles on the head.

Recorded distribution in Britain and Ireland

The Lizard peninsula, Cornwall and the east coast of St. Mary's in the Scilly Isles.

Global distribution

-

Habitat

Found on steep rock faces in 8-15 m depth.

Depth range

-

Identifying features

  • Aspect of body flattened but there is a conspicuous elevated zig-zag dorsal pallial ridge from between the rhinophores to the gills.
  • Mantle rim usually loosely crenulated.
  • Trumpet shaped rhinophores and a 5-lipped gill pocket.
  • Distinctive reticulate pattern of tubercles.

Additional information

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Listed by

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Further information sources

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Bibliography

  1. Howson, C.M. & Picton, B.E., 1997. The species directory of the marine fauna and flora of the British Isles and surrounding seas. Belfast: Ulster Museum. [Ulster Museum publication, no. 276.]

  2. Picton, B. E. & Morrow, C.C., 1994. A Field Guide to the Nudibranchs of the British Isles. London: Immel Publishing Ltd.

  3. Thompson, T. E. & Brown, G. H., 1976. British Opisthobranch Molluscs. London: Academic Press. [Synopses of the British Fauna, no. 8.]

Citation

This review can be cited as:

Wilson, E. 2004. Atagema gibba A sea slug. In Tyler-Walters H. and Hiscock K. (eds) Marine Life Information Network: Biology and Sensitivity Key Information Reviews, [on-line]. Plymouth: Marine Biological Association of the United Kingdom. Available from: http://www.marlin.ac.uk/species/detail/1254

Last Updated: 10/08/2004