RHODOPHYTA : Corallinales : HapalidiaceaeRED ALGAE

Lithothamnion sonderi Hauck


Description: Smooth encrusting thallus up to 5 cms in diameter and 3 mm thick. Thin wavy margin without orbital ridges. Conceptacles raised.

Habitat: Common. Epilithic on rock, shells etc in shallow sublittoral sheltered areas. Reported from deep waters.

Distribution: Throughout the British Isles: England, Scotland, Wales and Ireland. Europe: Mediterranean, Spain, Balitc and Norway. Further afield: Canary Isles and Japan.

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

iNaturalist: Lithothamnion sonderi at iNaturalist World Species Observations database.

WoRMS: Lithothamnion sonderi at World Register of Marine Species.

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 Morton, O., Keatley, L., Morrow, C.C. & Picton, B.E. (2026). Lithothamnion sonderi. Hauck. [In] Encyclopedia of Marine Life of Britain and Ireland.
https://habitas.org/mbdp/species.php?item=ZM4660. Accessed on 2026-11-01