Antithamnionella miharai (Tokida) Itono, 1977 species synonym

Antithamnionella simplex (E.Y.Dawson) Skelton & G.R.South, 2007 species synonym

Antithamnion breviramosum var. simplex E.Y.Dawson, 1957 variety synonym

Antithamnion scrippsiana species synonym

Anthithamnionella elegans (Berthold) J.Price & D.John species synonym

Antithamnion ternatum A.B.Joly & M.Cordeiro species synonym

Antithamnion tristicum A.B.Joly & Yam.-Tomita species synonym

Antithamnionella elegans (Berthold) J.H.Price & D.M.John species synonym

Antithamnion elegans Berthold species synonym

Antithamnionella breviramosa (E.Y.Dawson) E.M.Woll. species accepted

Antithamnionella floccosa (O.F.Müller) Whittick species accepted

Callithamnion floccosum var. atlanticum J.Agardh, 1876 variety synonym

Callithamnion pollexfenii Harvey, 1844 species synonym

Callithamnion floccosum var. pusillum (Lyngb.) J.Agardh, 1851 variety synonym

Antithamnion floccosum (O.F.Müller) Kleen species synonym

Antithamnion floccosum f. atlanticum (J.Agardh) Kjellman, 1883 form synonym

Conferva floccosa O.F.Müller, 1780 species synonym

Callithamnion floccosum (O.F.Müller) C.Agardh species synonym

Antithamnion plumula var. floccosum Rosenv., 1893 variety synonym

Callithamnion plumula var. pusillum Lyngb., 1819 variety synonym

Pterothamnion floccosum (O.F.Müller) Nägeli, 1862 species synonym

Antithamnionella gardneri (G.De Toni) species synonym

Antithamnionella adnata (J.Agardh) N.M.Adams species accepted

Antithamnionella tasmanica Wollaston species synonym

Antithamnionella ternifolia (Hook.f. & Harv.) Lyle species accepted

Antithamnionella sarniensis Lyle species synonym

Callithamnion ternifolia J.D.Hooker & Harvey species synonym

Antithamnion ternifolium (J.D.Hooker & Harvey) De Toni species synonym

Antithamnion sarniensis (Lyle) Feldmann-Mazoyer species synonym

Antithamnionella flagellata (Boergesen) I.A.Abbott species accepted

Antithamnionella graeffei (Grunow) Athanas. species accepted

Callithamnion graeffei Grunow species synonym

Antithamnionella spirographidis (Schiffner) E.M.Wollaston species accepted

Antithamnion tenuissima N.L.Gardner species synonym

Antithamnion spirographidis Schiffner species synonym

Antithamnionella glandulifera (Kylin) E.M.Wollaston species synonym

Antithamnion glanduliferum Kylin species synonym

Antithamnionella boergesenii (Cormaci & G.Furnari) Athanas. species accepted

Antithamnionella elegans var. boergesenii Cormaci & G.Furnari variety synonym

Antithamnionella atlantica (E.C.Oliviera) C.W.Schneid. species accepted

Antithamnion atlanticum E.C.Oliveira species synonym

Antithamnionella sublittoralis (Setch. & N.L.Gardner) Athanas., 1996 species accepted

Antithamnionella pacifica species accepted

Antithamnion pacificum species synonym

Irtugovia spirographidis (Schiffn.) Perestenko, 1994 species synonym

Antithamnion floccosum Muller species homotypic synonym

Antithamnion breviramosa E.Y.Dawson species synonym

Antithamnionella ternifolia (C.Agardh) Nägeli, 1847 species synonym

Antithamnionella ternifolia Hook.f. & Harv species doubtful