Dictyosiphon chordaria
- kingdom: Chromista
- phylum: Ochrophyta
- class: Phaeophyceae
- order: Ectocarpales
- family: Chordariaceae
- genus: Dictyosiphon
- species: Dictyosiphon chordaria
- Öregrund
Uppsala
Sweden- Berwick-Upon-Tweed
- Lund
England- Arbroath
- Coylton
- Dunbar
- Freuchie
- North Berwick
Scotland
United Kingdom