Fucus ovalis Hudson var. subarticulatus Turner, 1808–1809: 23, 24, pl. 81: figs. h, i (`sub-articulatus') (lectotype locality: Nootka Sound, Vancouver Island, British Columbia, Canada fide Hawkes, 1986: 331–332).
Gastroclonium subarticulatum (Turner) Kützing, 1843b: 441.
Taxonomic synonym:
Lomentaria ovalis (Hudson) Zanardini var. coulteri Harvey, 1853: 78, pl. XIX.A (type locality: Monterey, California, U.S.A.).
Gastroclonium coulteri (Harvey) Kylin, 1931: 30.—Banaimoon, 1988b: 240, fig. 11.
INDIAN OCEAN DISTRIBUTION: Yemen.
Note: The synonymy, although implied by Kylin (1931: 30), was first formally proposed by Hawkes (1986: 331–332). Judged from its photograph, the alga reported by Banaimoon from Yemen is incorrectly identified.