Fucus flagelliformis O.F. Müller, 1775: 7, pl. 650 (type locality: "Oc. Norvegico'').
Chordaria flagelliformis (O.F. Müller) C. Agardh, 1817: xii, 12.—J. Murray, 1881: 4.
Note: S. Dixit (1940b: 27) questioned Murray's record from Pakistan since this species is otherwise known only from the North Atlantic and North Pacific oceans.