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 (Crimora papillata)

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

Summary

Description

Crimora papillata has a translucent white to yellow body up to 3.5 cm in lenth. Its mantle skirt is reduced and, like the rest of its upper surface, is fringed with numerous yellow to orange tubercles. These distinct tubercles can be branched or arborescent at the tips, especially on the frontal margin of the head. The tips of the lamellate rhinophores, the short blunt oral tentacles and the gills are also pigmented yellow-orange. This species has 3-5 tripinnate gills around the anal papilla and its rhinophores emerge from plain, low sheaths (Thompson, 1988).

Recorded distribution in Britain and Ireland

This uncommon nudibranch has recently been recorded in large numbers in the south and west coasts of the British Isles. It has also been recorded as far north as St. Kilda.

Global distribution

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Habitat

Crimora papillata is a sublittoral species probably found at depths over 30 meters on the bryozoans Chartella papyracea, Flustra foliacea and Securiflustra securifrons.

Depth range

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Identifying features

  • Translucent white to yellow body up to 3.5 cm in length.
  • Covered in distinctive yellow-orange tubercles.
  • The tips of the tubercles are branched or arborescent.
  • The lamellate rhinophores, oral tentacles and gills are tipped with yellow-orange pigmentation.

Additional information

Crimora papillata feeds on bryozoans, primarily Chartella papyracea, but also Flustra foliacea or Securiflustra securifrons. Until 1972, this species was regarded as one of the rarest nudibranchs in the British Isles (Thompson, 1988).

The spawn of this species is bright yellow (Rudman, 2002c) and its penis bears numerous hooked spines (Thompson, 1988).

Listed by

- none -

Further information sources

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Bibliography

  1. 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,

  2. 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.]

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

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

  5. Rudman, W.B., 2002. Crimora papillata [on-line]. http://www.seaslugforum.net/, 2002-09-15

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

  7. 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. 2007. Crimora papillata 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/2

Last Updated: 26/02/2007