Hutchinsia roseola var. sertularioides (Grateloup) C.Agardh, 1828 variety synonym

Melanothamnus tongatensis (Harvey ex Kütz.) Díaz-Tapia & Maggs, 2017 species synonym

Neosiphonia subtilissima (Mont.) M.S.Kim & I.K.Lee species accepted

Polysiphonia eastwoodae Setch. & N.L.Gardner, 1930 species synonym

Neosiphonia gorgoniae (Harv.) S.M.Guim. & M.T.Fujii species accepted

Neosiphonia saccorhiza (Collins & Herv.) J.M.C.Nunes & S.M.Guim. species accepted

Neosiphonia harlandii (Harvey) Kim & Lee species accepted

Polysiphonia harlandii Harvey species synonym

Neosiphonia tongatensis (Harv. ex Kütz.) M.S.Kim & I.K.Lee species accepted

Polysiphonia mollis var. tongatensis (Harvey ex Kütz.) Hollenb., 1968 variety synonym

Polysiphonia tongatensis Harv. ex Kütz. species synonym

Polysiphonia eastwoodiae Setchell & N.L.Gardner species synonym

Polysiphonia acanthophora Kütz., 1843 species synonym

Polysiphonia saccorhiza (Collins & Herv.) Hollenb. species synonym

Polysiphonia gorgoniae Harv. species synonym

Polysiphonia subtilissima Mont. species homotypic synonym

Polysiphonia angustissima Kütz., 1864 species synonym

Polysiphonia sertularioides (Gratel.) J.Agardh species synonym

Polysiphonia flaccidissima Hollenb. species synonym

Neosiphonia flaccidissima (Hollenb.) M.-S.Kim & I.K.Lee species synonym

Polysiphonia macrarthra Zanardini, 1874 species synonym

Polysiphonia purpurata Zanardini ex De Toni, 1907 species synonym

Ceramium sertularioides Gratel. species synonym

Polysiphonia grisea Kütz., 1843 species synonym

Polysiphonia tepida Hollenb. species synonym

Polysiphonia ferulacea Suhr ex J.Agardh species synonym

Neosiphonia ferulacea (Suhr ex J.Agardh) S.M.Guim. & M.T.Fujii species accepted

Neosiphonia tepida (Hollenb.) S.M.Guim. & M.T.Fujii species accepted

Vertebrata sertularioides (Grateloup) Kuntze, 1891 species synonym

Polysiphonia badia Kütz., 1849 species synonym

Lophosiphonia saccorhiza Collins & Herv. species synonym

Neosiphonia paniculata (Mont.) J.N.Norris, 2014 species accepted

Neosiphonia sertularioides (Gratel.) K.W.Nam & P.J.Kang species accepted

Polysiphonia subtilissima var. westpointensis Harvey, 1853 variety synonym

Polysiphonia purpurata Zanardini species homotypic synonym

Polysiphonia ferulacea Suhr species homotypic synonym

Polysiphonia tongatensis Harv. species homotypic synonym