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 (Diaphorodoris luteocincta)

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

Summary

Description

Diaphorodoris luteocincta is an oval sea slug up to 1.1 cm in length. It is conspicuous compared to other onchidorids due to its colour; being white and having a bright to dark red blotching on its tuberculate, upper mantle and a yellow submarginal band around the mantle edge. The mantle tubercules (papilla) are white and sharply conical. The rear most part of foot (metapodium) of this species is crenulated, extends beyond the mantle and has a distinct keel. The tip of the metapodium may often be yellow in colour. The mantle bears a pair of lamellate rhinophores, and at the posterior edge; a rosette of up to seven branched gills encircling the anal papilla.

Recorded distribution in Britain and Ireland

This species is probably under recorded. However, records extend throughout the British Isles but less so from the east and south-east of England and Scotland.

Global distribution

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Habitat

A common sublittoral species, found at up to 50 m depth on silty rocks and wreckage, feeding on particular species of bryozoans (see additional information).

Depth range

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Identifying features

  • Oval sea slug, up to 1.1 cm in length.
  • White in colour with a conspicous red blotch on the mantle.
  • White, conical tubercules on the mantle.
  • Sub marginal yellow band around the mantle edge.
  • Pair of lamellate rhinophores.
  • Up to seven, branched gills.

Additional information

Diaphorodoris luteocincta feeds on heavily calcified bryzoans, primarily: Smittoidea reticulata; Cellepora pumicosa, and Crisia spp. It lays its eggs in a flattened, coiled white mass. The eggs later hatch into planktonic larvae.

A distinct variety of this species, Diaphorodoris luteocincta var. alba, lacks the red pigmentation on its upper mantle and occurs from the Mediterranean, north to the south coast of Britain. Thompson & Brown (1976) noted that the characteristic red pigmentation of Diaphorodoris luteocincta was very superficial and tended to rub off.

Listed by

- none -

Further information sources

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Bibliography

  1. Allen, J.A. 1962. The fauna of the Clyde Sea area. Mollusca. Millport: Scottish Marine Biological Association.

  2. Bruce, J.R., Colman, J.S. & Jones, N.S., 1963. Marine fauna of the Isle of Man. Liverpool: Liverpool University Press.

  3. Costello, M.J., Bouchet, P., Boxshall, G., Emblow, C. & Vanden Berghe, E., 2004. European Register of Marine Species [On-line]. http://www.marbef.org/data/erms.php,

  4. Foster-Smith, J. (ed.), 2000. The marine fauna and flora of the Cullercoats District. Marine species records for the North East Coast of England. Sunderland: Penshaw Press, for the Dove Marine Laboratory, University of Newcastle upon Tyne.

  5. Gibson, R., Hextall, B. & Rogers, A., 2001. Photographic guide to the sea and seashore life of Britain and north-west Europe. Oxford: Oxford University Press.

  6. Hayward, P., Nelson-Smith, T. & Shields, C. 1996. Collins pocket guide. Sea shore of Britain and northern Europe. London: HarperCollins.

  7. Hayward, P.J. & Ryland, J.S. (ed.) 1995b. Handbook of the marine fauna of North-West Europe. Oxford: Oxford University Press.

  8. 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.]

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

  10. Naylor, P., 2003. Great British Marine Animals. Plymouth: Sound Diving Publications.

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

  12. 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/

  13. Seaward, D.R., 1990. Distribution of marine molluscs of north west Europe. Peterborough: Nature Conservancy Council.

  14. Thompson, C.E.L. & Amos, C.L., 2002. The impact of mobile disarticulated shells of Cerastoderma edulis on the abrasion of a cohesive substrate. Estuaries, 25, 204-214.

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

  16. Thompson, T.E., 1988. Molluscs: Benthic Opisthobranchs. London: Bath Press. [Synopses of the British Fauna New Series), (ed. Doris M. Kermack & R.S.K. Barnes), no. 8 (second Edition)].

Citation

This review can be cited as:

Rowley, S.J. 2008. Diaphorodoris luteocincta 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/2194

Last Updated: 17/04/2008