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

Deeplet sea anemone (Bolocera tuediae)

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



This large anemone, growing up to 30 cm across the tentacles, has a smooth featureless column and up to 200 long thick tentacles. The tentacles are arranged in concentric rings of 6, then 6, then 12 , then 24 tentacles and so on (hexamerous). Bolocera tuediae is dull pink to brown in colour.

Recorded distribution in Britain and Ireland

On all British and Irish coasts, but rare on southern coasts.

Global distribution



This anemone is found sublittorally at depths from 20 m to at least 2000 m.

Depth range


Identifying features

  • A large anemone, up to 30 cm across the tentacles.
  • Up to 200 tentacles.
  • Column smooth and featureless.
  • Dull pink to brown colouration.

Additional information

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Listed by

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Further information sources

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

  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. JNCC (Joint Nature Conservation Committee), 1999. Marine Environment Resource Mapping And Information Database (MERMAID): Marine Nature Conservation Review Survey Database. [on-line]

  4. Manuel, R.L., 1988. British Anthozoa. London: Academic Press.[Synopses of the British Fauna, no. 18.]


  1. NBN (National Biodiversity Network) Atlas. Available from:

  2. OBIS (Ocean Biogeographic Information System),  2021. Global map of species distribution using gridded data. Available from: Ocean Biogeographic Information System. Accessed: 2021-06-17


This review can be cited as:

Pizzolla, P.F 2002. Bolocera tuediae Deeplet sea anemone. 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. [cited 17-06-2021]. Available from:

Last Updated: 11/10/2002