BRYOZOA : CTENOSTOMATIDA : AlcyonidiidaeSEA MATS

Alcyonidium diaphanum (Hudson, 1762)


Alcyonidium diaphanum

Description: This is a fleshy bryozoan, which is sometimes mistaken for a tunicate or sponge. It consists of thin finger-like growths, variously branched or webbed together. When undisturbed small white zooids with a crown of tentacles emerge from all surfaces.

Habitat: Very common in the sublittoral zone in a wide range of habitats, attached to rocks or shells.

Distribution: Widespread all round the British Isles.

Similar Species: Some other species of Alcyonidium are similar and others are encrusting.

Key Identification Features:

Distribution Map from BioMar data for Ireland - Google Earth map:  download this placemark (not got Google Earth installed?)

Distribution Map from NBN: Grid map (fast) : Interactive map (slow, requires login to view records) : National Biodiversity Network mapping facility, data for UK.



 Picton, B.E. & Morrow, C.C., 2010. [In] Encyclopedia of Marine Life of Britain and Ireland
http://www.habitas.org.uk/marinelife/species.asp?item=Y1370

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