Description: Very small, one to three erect uniseriate filaments, axes to 0.2 mm.

Habitat: Very rare. Epiphytic on Porphyra in the midlittoral.

Distribution: No records outside Britain: Cornwall, Devon, Northumberland in England; Bute in Scotland and in south-west Wales.

Similar Species: All species of Acrochaetium are similar. Microscopic examination required for identification.

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

iNaturalist: Acrochaetium battersianum at iNaturalist World Species Observations database.

WoRMS: Acrochaetium battersianum at World Register of Marine Species. Accepted name: Acrochaetium battersianum Hamel, 1927. AphiaID: 144328.

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