Description: Plant of uniseriate filaments, branched, spreading and growing in Bryozoa. The filaments rising to less than a few cells above the surface.

Habitat: Endozoic in Bryozoa in the sublittoral to 15 m.

Distribution: Widely distributed in the British Isles. Europe: French Channel and southern Norway. Further afield: South Africa.

Similar Species: All species of Acrochaetium are very similar, microscopic examination is usually required for identification.

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

iNaturalist: Acrochaetium endozoicum at iNaturalist World Species Observations database.

WoRMS: Acrochaetium endozoicum at World Register of Marine Species. Accepted name: Acrochaetium endozoicum (Darbishire) Batters, 1902. AphiaID: 144350.

Classification: Biota; Plantae; Biliphyta; Rhodophyta; Eurhodophytina; Florideophyceae; Nemaliophycidae; Acrochaetiales; Acrochaetiaceae; Acrochaetium