• Acrothamnion preissii (Sonder) E.M.Wollaston, 1968
• Antithamnion algeriense M.Verlaque & Seridi, 1991 accepted as Antithamnion amphigeneum A.Millar, 1990
• Antithamnion amphigeneum A.Millar, 1990
• Antithamnion cruciatum (C.Agardh) Nägeli, 1847
• Antithamnion densum (Suhr) M.Howe, 1914
• Antithamnion diminuatum Wollaston, 1968
• Antithamnion hubbsii E.Y.Dawson, 1962
• Antithamnion nipponicum Yamada & Inagaki, 1935
• Antithamnion pectinatum (Montagne) Brauner, 1994
• Antithamnion sparsum Tokida, 1932
• Antithamnionella boergesenii (Cormaci & G.Furnari) Athanasiadis, 1996
• Antithamnionella elegans (Berthold) J.H.Price & D.M.John, 1986
• Antithamnionella spirographidis (Schiffner) E.M.Wollaston, 1968
• Antithamnionella sublittoralis (Setchell & N.L.Gardner) Athanasiadis, 1996
• Antithamnionella ternifolia (Hooker f. & Harvey) Lyle, 1922
• Campylaephora kondoi (Yendo) Barros-Barreto & Maggs, 2023
• Ceramium bisporum D.L.Ballantine, 1990
• Ceramium codii (H.Richards) Mazoyer, 1938 accepted as Stirkia codii (H.Richards) Barros-Barreto & Maggs, 2023 accepted as Ceramothamnion codii H.Richards, 1901
• Ceramium flaccidum (Harvey ex Kützing) Ardissone, 1871 accepted as Gayliella flaccida (Harvey ex Kützing) T.O.Cho & L.J.McIvor, 2008
• Ceramium kondoi Yendo, 1920 accepted as Campylaephora kondoi (Yendo) Barros-Barreto & Maggs, 2023
• Ceramium strobiliforme G.W.Lawson & D.M.John, 1982
• Ceramothamnion codii H.Richards, 1901 accepted as Ceramium codii (H.Richards) Mazoyer, 1938 accepted as Stirkia codii (H.Richards) Barros-Barreto & Maggs, 2023
• Gayliella fimbriata (Setchell & N.L.Gardner) T.O.Cho & S.M.Boo, 2008
• Gayliella flaccida (Harvey ex Kützing) T.O.Cho & L.J.McIvor, 2008
• Gymnophycus hapsiphorus Huisman & Kraft, 1983
• Pleonosporium caribaeum (Børgesen) R.E.Norris, 1985 accepted as Spongoclonium caribaeum (Børgesen) M.J.Wynne, 2005
• Spongoclonium caribaeum (Børgesen) M.J.Wynne, 2005
• Stirkia codii (H.Richards) Barros-Barreto & Maggs, 2023 accepted as Ceramothamnion codii H.Richards, 1901 accepted as Ceramium codii (H.Richards) Mazoyer, 1938