Platoma novae-zelandiae D'Archino & W.A.Nelson species accepted

Platoma novae-caledoniae D'Archino & Payri, 2015 species accepted

Nemastoma damaecorne Harvey, 1855 species synonym

Nemastoma gelatinosum M.A.Howe, 1918 species synonym

Platoma incrassata Schousboe ex Bornet species accepted

Halymenia cyclocolpa Montagne species synonym

Platoma gelatinosum (M.A.Howe) C.W.Schneider, McDevit, G.W.Saunders & C.E.Lane, 2011 species accepted

Nemastoma cervicornis J.Agardh, 1842 species synonym

Platoma incrassata Schousboe species homotypic synonym

Platoma cyclocolpum (Mont.) F.Schmitz species accepted

Platoma chrysymenioides Gavio, Hickerson & Fredericq, 2005 species synonym

Nemastoma cyclocolpum (Mont.) Zanardini, 1843 species synonym