Description: Very small uniseriate filaments, irregularly branched.

Habitat: Endophytic in the cell walls of Bonnemaisonia hamifera.

Distribution: Probably generally distributed around the British Isles. Europe: Mediterranean, Portugal, Spain, France, Baltic Sea and Norway.

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

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

iNaturalist: Colaconema bonnemaisoniae at iNaturalist World Species Observations database.

WoRMS: Colaconema bonnemaisoniae at World Register of Marine Species.