Description: Thallus filamentous, erect in tufts to 5 cms long, finely branched.

Habitat: On stones and shells generally in the sublittoral to 14 m.

Distribution: Recorded in the British Isles only from Dorset, Cornwall and Pembroke. Europe: France.

Similar Species: All species of Aglaothamnion and Callithamnion are similar and not easy to identify.

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

iNaturalist: Aglaothamnion feldmanniae at iNaturalist World Species Observations database.

WoRMS: Aglaothamnion feldmanniae at World Register of Marine Species. Accepted name: Aglaothamnion feldmanniae Halos, 1965. AphiaID: 144494.

Classification: Biota; Plantae; Biliphyta; Rhodophyta; Eurhodophytina; Florideophyceae; Rhodymeniophycidae; Ceramiales; Callithamniaceae; Callithamnioideae; Callithamnieae; Aglaothamnion