Sargassum acinaria C. Agardh [var.? hildebrandtii] forma obockianum Grunow in Bornet, 1888: 19 (`obockiana') (type locality: Obock, Djibouti).—Grunow, 1916 [1915–1916]: 155.— Lawson, 1980: 26.
INDIAN OCEAN DISTRIBUTION: Djibouti.