Chorda filum
- kingdom: Chromista
- phylum: Ochrophyta
- class: Phaeophyceae
- order: Laminariales
- family: Chordaceae
- genus: Chorda
- species: Chorda filum
Xiangyang
Shandong
ChinaKarlskrona
Sturkö
BlekingeSlite
GotlandMörbylånga
Oskarshamn
Västervik
KalmarDalarö
Stockholm
SwedenCoylton
Dunbar
Freuchie
Rosehearty
Scotland
United KingdomAkutan
Cordova
Diamond Ridge
Homer
AlaskaDarien
ConnecticutNorthport
MaineEdgartown
Lynn
North Eastham
Sandwich
MassachusettsJamestown
Newport
Portsmouth
Rhode Island
United States