NARMS 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 antediluviana (Ehrenberg) Van Heurck, 1885
Biddulphia aurita (Lyngbye) Brébisson, 1838 accepted as Odontella aurita (Lyngbye) C.Agardh, 1832
Biddulphia aurita var. obtusa (Kützing) Hustedt, 1930 accepted as Odontella obtusa Kützing, 1844
Biddulphia bailey W. Smith, 1856 accepted as 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 biddulphiana (J.E.Smith) Boyer, 1900
Biddulphia favus (Ehrenberg) Van Heurck, 1885 accepted as Triceratium favus Ehrenberg, 1839
Biddulphia granulata Roper, 1859 † accepted as Cerataulus granulatus (Roper) P.A. Sims & D.M. Williams, 2018 †
Biddulphia laevis Ehrenberg, 1843 (uncertain > unassessed )
Biddulphia laevis f. laevis Ehrenberg, 1843 (uncertain > unassessed )
Biddulphia litigiosa Van Heurck, 1909 (uncertain > unassessed )
Biddulphia longicruris Greville, 1859 accepted as Hobaniella longicruris (Greville) P.A. Sims & D.M. Williams in Sims et al., 2018
Biddulphia longicruris var. longicruris Greville, 1859 (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 obtusa (Kützing) Ralfs, 1861 accepted as Odontella obtusa Kützing, 1844
Biddulphia polymorpha Manguin, 1915 (uncertain > unassessed )
Biddulphia pulchella S.F.Gray, 1821 accepted as Biddulphia biddulphiana (J.E.Smith) Boyer, 1900
Biddulphia radiata Roper, 1859
Biddulphia regia (Schultze) Ostenfeld, 1908 accepted as Trieres regia (M.Schultze) M.P.Ashworth & E.C.Theriot, 2013
Biddulphia rhombus (Ehrenberg) W.Smith, 1854
Biddulphia rhombus subsp. trigona Cleve ex Van Heurck, 1882
Biddulphia rhombus var. trigona Cleve ex Van Heurck, 1882 (uncertain > unassessed )
Biddulphia sinensis Greville, 1866 (uncertain > unassessed )
Biddulphia spinosa (J.W.Bailey) Boyer, 1927 accepted as Triceratium spinosum f. spinosum J.W. Bailey, 1844
Biddulphia subaequa (Kützing) J.Ralfs, 1861
Biddulphia subaequa var. baltica Grunow in Van Heurck, 1882 (uncertain > unassessed )
Biddulphia turgida (Ehrenberg) W.Smith, 1856 accepted as Denticella turgida Ehrenberg, 1840
Isthmia enervis Ehrenberg, 1838
Isthmia nervosa Kützing, 1844
Terpsinoë americana (Bailey) Grunow, 1868
Trigonium alternans (Bailey) A.Mann, 1907 accepted as Triceratium alternans f. alternans J.W. Bailey, 1851