AfReMaS Taxon list
Biddulphia alternans (Bailey) Van Heurck, 1885 accepted as Trigonium alternans (Bailey) A.Mann, 1907 accepted as Triceratium alternans f. alternans J.W. Bailey, 1851
Biddulphia aurita (Lyngbye) Brébisson, 1838 accepted as Odontella aurita (Lyngbye) C.Agardh, 1832
Biddulphia dubia (T.Brightwell) Cleve, 1883 accepted as Pseudictyota dubium (Brightwell) P.A. Sims & D. M. Williams in Sims et al., 2018
Biddulphia laevis Ehrenberg, 1843 (uncertain > unassessed )
Biddulphia laevis f. laevis Ehrenberg, 1843 (uncertain > unassessed )
Biddulphia mobiliensis (J.W.Bailey) Grunow, 1882 accepted as Trieres mobiliensis (J.W.Bailey) Ashworth & E.C.Theriot in Ashworth, Nakov & E.C.Theiriot, 2013
Biddulphia regia (Schultze) Ostenfeld, 1908 accepted as Trieres regia (M.Schultze) M.P.Ashworth & E.C.Theriot, 2013
Biddulphia reticulum (Ehrenberg) Boyer, 1900 accepted as Triceratium reticulum f. reticulum Ehrenberg, 1844
Biddulphia rhombus (Ehrenberg) W.Smith, 1854
Biddulphia sinensis Greville, 1866 (uncertain > unassessed )
Biddulphia titiana Grunow in Van Heurck, 1883 (uncertain > unassessed )
Trigonium alternans (Bailey) A.Mann, 1907 accepted as Triceratium alternans f. alternans J.W. Bailey, 1851
Trigonium formosum (Brightwell) Cleve, 1867 accepted as Triceratium formosum f. formosum Brightwell, 1856