Description: Fine filaments long and entangled.

Habitat: Possibly uncommon. Until there is a full revision of the genus the habitat and distribution will be unclear.

Distribution: Until there is a full revision of the genus the distribution will remain unclear.

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

iNaturalist: Chaetomorpha crassa at iNaturalist World Species Observations database.

WoRMS: Chaetomorpha crassa at World Register of Marine Species. Accepted name: Chaetomorpha crassa (C.Agardh) Kützing, 1845. AphiaID: 145022.

Classification: Biota; Plantae; Viridiplantae; Chlorophyta; Chlorophytina; Ulvophyceae; Cladophorales; Cladophoraceae; Chaetomorpha