MarLIN

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

Snakelocks shrimp (Periclimenes sagittifer)

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

Summary

Description

Periclimenes sagittifer is a small shrimp reaching lengths of 3 cm found only in association with sea anemones. The transparent body has scattered blue or red dots, the limbs have blue or red bands, the second abdominal segment has an elongate white-pink transverse strip and the third abdominal segment has a white-pink chevron pointing posteriorly.

Recorded distribution in Britain and Ireland

Recorded only from Swanage Pier, Dorset, on mainland Britain but originally described from Jersey and also found in Guernsey.

Global distribution

From the southwest Channel south to the Strait of Gibraltar.

Habitat

Periclimenes sagittifer is only found in association with anemones particularly with the snakelocks anemone Anemonia viridis. The relationship may be parasitic rather than commensal, as the shrimp has been observed eating the tips of the tentacles when kept in aquaria.

Depth range

-

Identifying features

  • Rostrum well developed with 7-9 dorsal and 3-4 ventral teeth.
  • Second pereopods distinctly uneven.
  • Transverse stripe on the second abdominal segment.
  • Posteriorly directed chevron on the third abdominal segment.

Additional information

The related species, Periclimenes aegylios, found in the Mediterranean, is easily confused with Periclimenes sagittifer, but can be distinguished by the two oval spots and the more elongate chevron on the second and third abdominal segments. Grippa and d'Udekem d'Acoz (1994) in their review of the Periclimenes sp. of the Mediterranean state that the specimens described as being Periclimenes sagittifer by Alvarez (1968) in fact belong to another unknown species of Periclimenes.

Listed by

- none -

Further information sources

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Bibliography

    Citation

    This review can be cited as:

    Hosie, A.M. 2008. Periclimenes sagittifer Snakelocks shrimp. 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/2214

    Last Updated: 22/12/2008