Description: Small tufts of uniseriate filaments up to 2 cms long without opposite branching.

Habitat: Rare. Infralittoral to 18 m. Epiphytic on Laminaria.

Distribution: Widely distributed in the British Isles. Europe: Portugal, Spain, France, Netherlands, the Baltic and Iceland. Atlantic coast of North America: Maine, New Hampshire, Massachusetts and Rhode Island.

Similar Species: Many fine filamentous brown algae are similar and require microscopic examination for identification.

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

iNaturalist: Hincksia secunda at iNaturalist World Species Observations database.

WoRMS: Hincksia secunda at World Register of Marine Species. Accepted name: Hincksia secunda (Kützing) P.C.Silva, 1987. AphiaID: 145441.

Classification: Biota; Chromista; Harosa; Heterokonta; Ochrophyta; Phaeophyceae; Fucophycidae; Ectocarpales; Acinetosporaceae; Hincksia