Fucus filum Linnaeus, Species Plantarum 2: 1162. 1753.

"Habitat in Oceano Atlantico." RCN: 8299, 8333.

Lectotype (Irvine in Spencer & al. in Taxon, in press): [icon] " Fucus sive Filum maritimum Germanicum" in Boccone, Mus. Fis.: 271, t. 7, f. 9. 1697.

Current name: Chorda filum (L.) Stackh. ( Chordariaceae).

Note: See discussion by South & Burrows (in Brit. Phycol. Bull. 3: 379-380. 1967).