- Platoma abbottianum J.N.Norris & Bucher, 1977 accepted as Tsengia abbottiana (J.N.Norris & Bucher) J.N.Norris & Bucher, 2014
- Platoma confusum (Kraft & D.M.John) Gabriel & Fredericq, 2011
- Platoma cyclocolpa (Montagne) F.Schmitz accepted as Platoma cyclocolpum (Montagne) F.Schmitz, 1894
- Platoma cyclocolpum (Montagne) F.Schmitz, 1894
- Platoma gelatinosum (M.Howe) C.W.Schneider, McDevit, G.W.Saunders & C.E.Lane, 2011
- Platoma incrassata Schousboe ex Bornet
- Platoma marginiferum (J.Agardh) Batters, 1902 accepted as Itonoa marginifera (J.Agardh) Masuda & Guiry, 1995
- Schizymenia apoda (J.Agardh) J.Agardh, 1851
- Schizymenia dubyi (Chauvin ex Duby) J.Agardh, 1851