Overview

Comprehensive Description

Description

 A tall anemone, up to 12 cm high, the slender column flaring outwards to the broad oral disc. The tentacles, up to about 100, are steeply graduated in size, the inner ones being very long in extension, stout at the base and tapering to fine points. They are perfectly retractile but rarely retracted. The column is brown often with irregular streaks of opaque white and the tentacles are brown becoming paler and whitish toward their tips. The overall brownish colouration may have a blue tint.Possibly conspecific with Aiptasia couchii (Cocks, 1850) although this may be a distinct species (R B Williams).
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©  The Marine Biological Association of the United Kingdom

Source: Marine Life Information Network

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Description

The column of this sea anemone is smooth, not divided into regions, tall in extension and trumpet-shaped. The tentacles are long, stout, tapering to fine points, not readily retracted. Acontia are present, fairly readily emitted from pores in column. Colour brown, column sometimes streaked with white or blue, disc with broad white or blue lines around tentacle bases. up to 120mm across tentacles. Column very variable in shape but typically trumpet-like, may attach to substrate by adhesive spots (not easily visible) on column. Has been confused with Anemonia viridis, however Anemonia viridis has a parapet, often bright green tentacles, and lacks acontia.
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© National Museums Northern Ireland and its licensors

Source: Encyclopedia of Marine Life of Britain and Ireland

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Distribution

Local and uncommon in Britain, in extreme southwest only - Cornwall, Devon, Dorset, Bristol Channel, Kenmare River (southwest Ireland). Common in Channel Isles and northwest France, around southwest Europe and the Mediterranean.
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Source: Encyclopedia of Marine Life of Britain and Ireland

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Ecology

Habitat

Depth range based on 1 specimen in 1 taxon.

Environmental ranges
  Depth range (m): 10 - 10
 
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 Found on the lower shore in pools, under stones or beneath overhangs, often amongst algal holdfasts, particularly Laminaria and Saccorhiza. Sometimes abundant on infralittoral rock at wave sheltered locations.
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On shore or in depths down to 100m or more. On rocks, sea-weed holdfasts, etc., usually occurs in considerable numbers when present.
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© National Museums Northern Ireland and its licensors

Source: Encyclopedia of Marine Life of Britain and Ireland

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