| RHODOPHYTA : Ceramiales : Callithamniaceae | RED ALGAE |
Description: Thallus uniseriate growing in dense tufts to 25 cms long. Rhizoidal filaments form a thick cortex.
Habitat: Epilithic in the lower littoral and sublittoral to 6 m.
Distribution: South-west coasts of the British Isles including the Channel Islands. Europe: Portugal, Spain and France.
Similar Species: All species of Callithamnion and Aglaothamnion are similar.
Distribution Map from NBN: Callithamnion tetricum at National Biodiversity Network mapping facility, data for UK.
iNaturalist: Callithamnion tetricum at iNaturalist World Species Observations database.
WoRMS: Callithamnion tetricum at World Register of Marine Species.
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| Morton, O., Keatley, L., Morrow, C.C. & Picton, B.E. (2026). Callithamnion tetricum. (Dillwyn) S F Gray. [In] Encyclopedia of Marine Life of Britain and Ireland. https://habitas.org/mbdp/species.php?item=ZM8020. Accessed on 2026-11-01 |