Achnanthes brevipes var. brevipes Agardh, 1824 (basis of record)
Achnanthes hauckiana Grunow, 1880 (additional source)
Achnanthes microcephala (Kützing) Grunow, 1880 accepted as Achnanthidium microcephalum Kützing, 1844 (additional source)
Actinocyclus C.G. Ehrenberg, 1837 (basis of record)
Amphipleura F.T. Kützing, 1844 (basis of record)
Amphiprora hyalina Eulenstein ex Van Heurck, 1880 (additional source)
Amphora acutiuscula Kützing, 1844 accepted as Halamphora acutiuscula (Kützing) Levkov, 2009 (basis of record)
Auricula insecta (Grunow) A.Schmidt, 1894 accepted as Amphora insecta Grunow ex A.Schmidt, 1876 (basis of record)
Biddulphia granulata Roper, 1859 † accepted as Cerataulus granulatus (Roper) P.A. Sims & D.M. Williams, 2018 † (additional source)
Biddulphia laevis Ehrenberg, 1843 (additional source)
Biddulphia obtusa (Kützing) Ralfs, 1861 accepted as Odontella obtusa Kützing, 1844 (additional source)
Biddulphia rhombus (Ehrenberg) W.Smith, 1854 (additional source)
Biddulphia sinensis Greville, 1866 (additional source)
Chaetoceros paradoxus Peragallo, 1897 accepted as Chaetoceros diadema (Ehrenberg) Gran, 1897 accepted as Syndendrium diadema Ehrenberg, 1854 † (basis of record)
Chaetoceros paradoxus Peragallo, 1897 accepted as Chaetoceros diadema (Ehrenberg) Gran, 1897 accepted as Syndendrium diadema Ehrenberg, 1854 † (source of synonymy)
Chaetoceros skeleton F.Schütt, 1895 (basis of record)
Chaetoceros tetrastichon Cleve, 1897 (basis of record)