RHODOPHYTA : Ceramiales : CeramiaceaeRED ALGAE

Antithamnionella ternifolia (J D Hooker et Harvey) Lyle


Description: Thallus filamentous and very delicate, prostrate axes spread over the substrate producing erect axes up to 4 cms long. Whorl branched.

Habitat: Epiphytic, epizoic and epilithic in the intertidal to 25 m deep.

Distribution: South-west coasts of the British Isles to Argyll. Europe: Portugal to the Netherlands. Further afield: Argentina, Australia and New Zealand.

Similar Species: Other species of Antithamnionella .

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

iNaturalist: Antithamnionella ternifolia at iNaturalist World Species Observations database.

WoRMS: Antithamnionella ternifolia at World Register of Marine Species.

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 Morton, O., Keatley, L., Morrow, C.C. & Picton, B.E. (2026). Antithamnionella ternifolia. (J D Hooker et Harvey) Lyle. [In] Encyclopedia of Marine Life of Britain and Ireland.
https://habitas.org/mbdp/species.php?item=ZM7751. Accessed on 2026-11-01