Sargassum boveanum J. Agardh var. aterrimum Grunow in Piccone, 1884a: 306 (`aterrima') (type locality: Bay of Assab, Eritrea).—Børgesen, 1939b: 97–98.— Basson et al., 1977: 72, 225, 236.— Basson, 1979: 60, pl. VI: figs. 31, 32.— D. Jones, 1986: 32, pl. 7.— Mshigeni & D. Chapman, 1987: 223.— Basson, 1992: 222.
INDIAN OCEAN DISTRIBUTION: Iran, Kuwait, Qatar, Saudi Arabia.