Description: Unicellular alga which grows endophytically.

Habitat: In the tubes of the colonial diatom Berkeleya rutilans. In brackish water and marine rock pools in the littoral.

Distribution: Recorded from scattered sites around the British Isles. Europe: Mediterranean, France, Helgoland, Denmark, Sweden and Iceland. Greenland. Atlantic coast of North America: Canada.

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

iNaturalist: Chlorochytrium cohnii at iNaturalist World Species Observations database.

WoRMS: Chlorochytrium cohnii at World Register of Marine Species.