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 (Embletonia pulchra)

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

Summary

Description

Embletonia pulchra is a minute sea slug (max. length 6 mm), often unrecorded because of its small size. The body is smooth and much longer than it is wide with up to six pairs of unbranched cerata which get larger posteriorly. There are two small eyespots about halfway between the rhinophores and the first pair of cerata. The rhinophores are short and widely spaced, appearing almost lateral when the animal is viewed from above. Just in front of the rhinophores are two oral flaps. There are no oral tentacles.

Recorded distribution in Britain and Ireland

Recorded from a few locations around Britain and Ireland but is probably under-recorded due to its small size.

Global distribution

-

Habitat

Found intertidally and in the shallow sublittoral on a variety of hydroids. Has also been recorded interstitially in coarse sand and gravel.

Depth range

-

Identifying features

  • Up to six pairs of unbranched cerata on dorsal surface.
  • Digestive glands within cerata orange-brown.
  • Frontal margin of head bilobed into oral flaps.
  • Rhinophores smooth and widely spaced.
  • Body translucent white.

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. National Biodiversity Network (NBN) Atlas website. Available from: http://www.nbnatlas.org.  Accessed 01 April 2017

  3. Picton, B.E. & Costello, M.J., 1998. BioMar biotope viewer: a guide to marine habitats, fauna and flora of Britain and Ireland. [CD-ROM] Environmental Sciences Unit, Trinity College, Dublin., http://www.itsligo.ie/biomar/

  4. Picton, B.E., 2000. Nudibranchs of the British Isles. http://www.pictonb.freeserve.co.uk/nudibranchs/index.html, 2003-09-11

  5. 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:

Neal, K.J. 2004. Embletonia pulchra 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/2060

Last Updated: 14/06/2004