•
Sargassum sagamianum Yendo, 1907 •
Sargassum salicifolioides Yamada, 1942 •
Sargassum salicifolium (J.Agardh) J.Agardh, 1889 •
Sargassum salicifolium Naccari, 1828 •
Sargassum saltii (Turner) C.Agardh, 1824 •
Sargassum samarense G.C.Trono, Jr, 1994 •
Sargassum sanyaense Tseng & Lu, 1997 •
Sargassum saundersii Kraft, 2009 •
Sargassum scabridum J.D.Hooker & Harvey, 1845 •
Sargassum scherzerianum Grunow, 1868 •
Sargassum schnetteri (Bula-Meyer) Camacho, Mattio & Diaz-Pulido, 2014 •
Sargassum scopula Grunow, 1916 •
Sargassum segii Yoshida, 1976 •
Sargassum serratifolium (C.Agardh) C.Agardh, 1820 •
Sargassum serratum Nguyen Huu Dai, 2004 •
Sargassum shandongense C.K.Tseng, Z.F.Zhang & B.Lu, 2000 •
Sargassum shangchuanii Tseng & Lu, 1994 •
Sargassum siliculosoides Tseng & Lu, 2002 •
Sargassum siliquastrum (Mertens
ex Turner) C.Agardh, 1820 •
Sargassum siliquosum J.Agardh, 1848 •
Sargassum silvae C.K.Tseng & Lu Baoren, 1999 •
Sargassum silvai Tseng & Lu, 1999 •
Sargassum sinclairii J.D.Hooker & Harvey, 1845 •
Sargassum sinicola Setchell & N.L.Gardner, 1924 •
Sargassum sonorense E.Y.Dawson, 1960 •
Sargassum spathulophyllum J.Tanaka, H.Murakami & S.Arai, 1999 •
Sargassum spinifex C.Agardh, 1820 •
Sargassum spinuligerum Sonder, 1845 •
Sargassum squarrosum Greville, 1849 •
Sargassum steinitzii Lipkin & P.C.Silva, 2002 •
Sargassum subdroserifolium Tseng & Lu, 2002 •
Sargassum subfalcatum Sonder, 1854 •
Sargassum subrepandum (Forsskål) C.Agardh, 1820 •
Sargassum subspathulatum (Grunow) Grunow, 1916 •
Sargassum subtilissimum C.K.Tseng & Lu, 1978 •
Sargassum sullivanii G.C.Trono, 1994 •
Sargassum swartzii C.Agardh, 1820 •
Sargassum symphyorhizoideum Tseng & Lu, 2002 ==T==