Dudresnaya multifida (Lyngb.) Trev., 1848 species synonym

Nemalion multifidum (F.Weber & D.Mohr) Endlicher species synonym

Nemalion vermiculare Suringar, 1874 species accepted

Nemalion helminthoides (Velley) Batters species synonym

Nemalion lubricum Duby species synonym

Mesogloia rubra (Hudson) Areschoug species synonym

Fucus helminthoides Velley species synonym

Mesogloia multifida (F.Weber & D.Mohr) C.Agardh species synonym

Nemalion multifidum (Lyngbye) Chauvin species accepted

Nemalion hudsonii (C.Agardh) Chauv., 1842 species synonym

Nemalion longicolle Borgesen species accepted

Nemalion virens species accepted

Boanema scoparia Erceg., 1927 species synonym

Chaetophora rubra (Hudson) C.Agardh species synonym

Rivularia multifida F.Weber & D.Mohr species synonym

Ulva elminthoides (Velley) Withering, 1796 species synonym

Helminthora multifida (F.Weber & D.Mohr) Fries species synonym

Ulva rubra Hudson, 1778 species synonym

Nemalion elminthoides (Velley) Batters species accepted

Rivularia rubra (Hudson) Wahlenberg species synonym

Nemalion elminthoides var. vermiculare (Suringar) C.K.Tseng, 1984 variety synonym

Chordaria multifida (F.Weber & D.Mohr) Lyngbye species synonym

Nemalion pulvinatum species accepted

Mesogloia hudsonii C.Agardh, 1824 species synonym

Palmella elminthoides (Withering) S.F.Gray, 1821 species synonym

Rivularia lumbricalis Schousb. ex Bornet, 1892 species synonym

Rivularia lumbricalis Schousb. species homotypic synonym