Description: Thallus microscopic, a monostromatic disc up to a few mm in diameter with radiating filaments.

Habitat: Epiphytic in cultures of Griffithsia flosculosum and various other sublittoral algae.

Distribution: Isle of Man, Isle of Wight and Co. Galway. Europe: Mediterranean, France, Netherlands, Denmark. Atlantic coast of North America: Canada and the U.S.A. Further afield: the Canary Islands, West Indies and Japan.

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

iNaturalist: Sahlingia subintegra at iNaturalist World Species Observations database.

WoRMS: Sahlingia subintegra at World Register of Marine Species.