Description: Minute filaments, branched, creeping between the cells of the host and with erect external filaments. Appearing as spots.

Habitat: endophytic in various algae.

Distribution: Recorded from a few scattered sites around the British Isles. Europe: France and Norway. Atlantic coast of North America: Canada, Maine and Massachusetts.

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

iNaturalist: Streblonema parasiticum at iNaturalist World Species Observations database.

GBIF data for Microspongium parasiticum

WoRMS: Streblonema parasiticum at World Register of Marine Species. Accepted name: Microspongium parasiticum (Sauvageau) R.L.Fletcher, 2024. AphiaID: 1871320.

Classification: Biota; Chromista; Harosa; Heterokonta; Ochrophyta; Phaeophyceae; Fucophycidae; Ectocarpales; Chordariaceae; Streblonema