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MCS: Lancashire area group

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Right: Photograph of the plumose anemone Metridium senile (L.) by Ron Crosby.

Common on wreck sites, metridium will colonise any hard substrate where there is a strong current to bring food to it. Metridium is distinguished by having a mass of fine feeding tentacles (usually rather finer and more numerous than in the example here) and a prominent ribbed mouth. The tentacles can be withdrawn very quickly if disturbed.

  A plumose anemone growing on a rocky substrate.

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