CHROMOPHYTA : Ectocarpales : ChordariaceaeBROWN ALGAE

Protectocarpus speciosus (Boergesen) Kornmann


Description: Very small tufts, erect just visible to the naked eye, growing from a monostromatic base. Filaments erect, to about 0.4 mm long, sparingly branched, pinnate or secund.

Habitat: Epiphytic on various algae in the upper sublittoral.

Distribution: Recorded from scattered sites around the British Isles. Europe: Spain, France, Netherlands, Denmark, Baltic Sea, Sweden, Norway, Faroes and Iceland. Atlantic coast of North America: Canada, Maine and New Hampshire. Further afield: the Canary Islands.

Distribution Map from NBN: Protectocarpus speciosus at National Biodiversity Network mapping facility, data for UK.

iNaturalist: Protectocarpus speciosus at iNaturalist World Species Observations database.

WoRMS: Protectocarpus speciosus at World Register of Marine Species.

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 Morton, O., Keatley, L., Morrow, C.C. & Picton, B.E. (2026). Protectocarpus speciosus. (Boergesen) Kornmann. [In] Encyclopedia of Marine Life of Britain and Ireland.
https://habitas.org/mbdp/species.php?item=ZR2370. Accessed on 2026-11-01