• (1) Saccharina phyllitis - Sargassum nanshaense
• (2) Sargassum naozhounse - Skvortzoviella gracillima
• (3) Solenotryma ichikawai - Stephanoeca campanula
• (4) Stephanoeca complexa - Synedra chaseii
• (5) Synedra closterioides - Syzygangia zygnematicola