Ectocarpus duchassaingianus
- kingdom: Chromista
- phylum: Ochrophyta
- class: Phaeophyceae
- order: Ectocarpales
- family: Ectocarpaceae
- genus: Ectocarpus
- species: Ectocarpus duchassaingianus
Welchman Hall
Saint Thomas
Barbados
Kingston
Kingston- Half Way Tree
- New Kingston
St. Andrew- Bath
St. Thomas
Jamaica
Cruz Bay
Saint John Island
Virgin Islands, U.S.
Fuig