Sargassum cystocarpum C. Agardh, 1820a: 33–34 (type locality: "E mari Indico'').—C. Agardh, 1820b: pl. I with accompanying text.— C. Agardh, 1824: 306.— J. Agardh, 1846b: pl. I with accompanying text.— J. Agardh, 1848b: 308–309.— Kützing, 1849: 610–611.— Kützing, 1861: 8, pl. 25: fig. II.— G. Martens, 1868: 72–73.— J. Agardh, 1889: 118.— De Toni, 1895b: 100.— Grunow, 1916 [1915–1916]: 6.— Biswas & Sharma, 1950: 95.— S. Dixit, 1968: 18.
INDIAN OCEAN DISTRIBUTION: India.