Flustra foliacea is a cold temperate species whose range does not extend below northern Spain.


Flustra is most frequently found in cold water areas on stony grounds which have a stable, fixed substratum and strong currents.

The clumps of Flustra form a rich and diverse microhabitat and support a dense assemblage of motile predators, such as:

  • sea urchins
  • crabs
  • nudibranchs
  • pycnogonids

Seven different phyla have been recorded from Flustra (Stebbing, 1971), but the most common epizoites are hydroids and other bryozoans such as Electra pilosa (L).

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