Achnanthes Bory, 1822 (additional source)
Achnanthes austriaca Hust., 1922 accepted as Eucocconeis austriaca (Hustedt) H. Lange-Bertalot apud H. Lange-Bertalot & S.I. Genkal in H. Lange-Bertalot (ed.), 1999 accepted as Achnanthes austriaca var. austriaca Hust., 1922 (basis of record)
Achnanthes austriaca var. austriaca Hust., 1922 accepted as Achnanthes austriaca Hust., 1922 accepted as Eucocconeis austriaca (Hustedt) H. Lange-Bertalot apud H. Lange-Bertalot & S.I. Genkal in H. Lange-Bertalot (ed.), 1999 (basis of record)
Achnanthes brevipes C.Agardh, 1824 (additional source)
Achnanthes brevipes var. intermedia (Kützing) Cleve, 1895 accepted as Achnanthes intermedia Kützing, 1833 (additional source)
Achnanthes clevei Grunow, 1880 accepted as Karayevia clevei (Grunow) Round & Bukhtiyarova, 1999 (basis of record)
Achnanthes coarctata (Brébisson ex W.Smith) Grunow, 1880 (basis of record)
Achnanthes coarctata var. elliptica Krasske, 1929 (basis of record)
Achnanthes conspicua A.Mayer, 1919 accepted as Planothidium conspicuum (A.Mayer) M.Aboal, 2003 accepted as Achnanthes conspicua var. conspicua A.Mayer, 1919 (basis of record)
Achnanthes conspicua var. conspicua A.Mayer, 1919 (basis of record)
Achnanthes exilis Kützing, 1833 accepted as Achnanthidium exile (Kützing) Heiberg, 1863 accepted as Achnanthes exilis var. exilis Kützing, 1833 (basis of record)
Achnanthes groenlandica (Cleve) Grunow, 1880 (basis of record)
Achnanthes hauckiana Grunow, 1880 (source of synonymy)
Achnanthes hungarica (Grunow) Grunow, 1880 accepted as Lemnicola hungarica (Grunow) F.E.Round & P.W.Basson, 1997 accepted as Achnanthidium hungaricum Grunow, 1863 (additional source)
Achnanthes inflata (Kützing) Grunow, 1867 (basis of record)
Achnanthes intermedia Kützing, 1833 (additional source)
Achnanthes kryophila J.B.Petersen, 1924 accepted as Achnanthes chlidanos M.H.Hohn & Hellerman, 1963 (basis of record)
Achnanthes lanceolata (Brébisson ex Kützing) Grunow, 1880 accepted as Planothidium lanceolatum (Brébisson ex Kützing) Bukhtiyarova, 1999 (additional source)
Achnanthes lapidosa Krasske, 1929 accepted as Nupela lapidosa (Krasske) Lange-Bertalot, 1999 (basis of record)
Achnanthes lapponica (Hustedt) Hustedt, 1933 accepted as Eucocconeis quadratarea (Østrup) Lange-Bertalot, 1999 (basis of record)
Achnanthes linearis (W.Smith) Grunow, 1880 accepted as Achnanthidium lineare W.Smith, 1855 (additional source)
Achnanthes marginulata Grunow, 1880 (basis of record)
Achnanthes minutissima Kützing, 1833 (additional source)
Achnanthes minutissima var. cryptocephala Grunow, 1880 (additional source)
Achnanthes montana Krasske, 1929 accepted as Psammothidium montanum (Krasske) Mayuma, 2002 accepted as Achnanthes montana var. montana Krasske, 1929 (basis of record)
Achnanthes nodosa Cleve, 1900 (basis of record)
Achnanthes petersenii Hustedt, 1937 (source of synonymy)
Achnanthes saxonica Krasske ex Hustedt, 1933 (basis of record)
Achnanthes subsessilis Kützing, 1833 accepted as Achnanthes brevipes var. intermedia (Kützing) Cleve, 1895 accepted as Achnanthes intermedia Kützing, 1833 (additional source)
Achnanthidium hungaricum Grunow, 1863 (basis of record)
Achnanthidium lanceolatum Brébisson ex Kützing, 1846 accepted as Planothidium lanceolatum (Brébisson ex Kützing) Bukhtiyarova, 1999 (additional source)
Achnanthidium lineare W.Smith, 1855 (additional source)
Achnanthidium microcephalum Kützing, 1844 (additional source)
Actinocyclus C.G. Ehrenberg, 1837 (additional source)
Actinocyclus cholnokyi VanLandingham, 1967 (basis of record)
Actinocyclus ehrenbergii Ralfs, 1861 (additional source)
Actinocyclus normanii (Gregory) Hustedt, 1957 (additional source)
Actinocyclus octonarius Ehrenberg, 1837 accepted as Actinoptychus octonarius (Ehrenberg) Kützing, 1844 accepted as Actinocyclus octonarius var. octonarius Ehrenberg, 1837 (basis of record)
Actinocyclus octonarius var. octonarius Ehrenberg, 1837 (additional source)
Actinocyclus senarius Ehrenberg, 1838 (additional source)
Actinoptychus senarius (Ehrenberg) Ehrenberg, 1843 accepted as Actinocyclus senarius Ehrenberg, 1838 (additional source)
Actinoptychus undulatus (J.W.Bailey) Ralfs, 1861 accepted as Actinoptychus senarius (Ehrenberg) Ehrenberg, 1843 accepted as Actinocyclus senarius Ehrenberg, 1838 (additional source)
Amphiprora kjellmanii Cleve, 1880 accepted as Entomoneis kjellmanii (Cleve) Poulin & Cardinal, 1983 accepted as Amphiprora kjellmanii var. kjellmanii Cleve in Cleve & Grunow, 1880 (additional source)
Amphiprora paludosa W.Smith, 1853 accepted as Entomoneis paludosa (W.Smith) Reimer, 1975 (additional source)
Amphiprora paludosa var. paludosa W. Smith, 1853 accepted as Entomoneis paludosa (W.Smith) Reimer, 1975 (additional source)
Amphora affinis Kützing, 1844 (basis of record)
Amphora angusta Gregory, 1857 (basis of record)
Amphora coffeaeformis (C.Agardh) Kützing, 1844 accepted as Halamphora coffeiformis (C.Agardh) Levkov, 2009 (additional source)
Amphora coffeaeformis var. perpusilla (Grunow) Cleve, 1895 accepted as Amphora perpusilla Grunow, 1884 accepted as Amphora globulosa var. perpusilla Grunow, 1880 (basis of record)
Amphora delicatissima Krasske, 1930 (additional source)
Amphora gracilis Ehrenberg ex Kützing, 1844 (basis of record)
Amphora holsatica Hustedt, 1925 accepted as Halamphora holsatica (Hustedt) Levkov, 2009 (basis of record)
Amphora libyca Ehrenberg, 1840 (basis of record)
Amphora lineolata Ehrenberg, 1838 (basis of record)
Amphora ovalis (Kützing) Kützing, 1844 (additional source)
Amphora ovalis var. gracilis (Ehrenberg) van Heurck, 1885 accepted as Amphora gracilis f. gracilis Ehrenberg, 1843 (basis of record)
Amphora ovalis var. libyca (Ehrenberg) Cleve, 1895 accepted as Amphora libyca f. libyca Ehrenberg, 1840 (basis of record)
Amphora ovalis var. pediculus (Kützing) Van Heurck, 1885 accepted as Amphora pediculus (Kützing) Grunow ex A.Schmidt, 1875 (basis of record)
Amphora pediculus (Kützing) Grunow ex A.Schmidt, 1875 (basis of record)
Amphora perpusilla Grunow, 1884 accepted as Amphora globulosa var. perpusilla Grunow, 1880 (additional source)
Amphora veneta Kützing, 1844 accepted as Halamphora veneta (Kützing) Levkov, 2009 accepted as Amphora veneta f. veneta Kützing, 1844 (additional source)
Amphora veneta var. capitata Haworth, 1974 (basis of record)
Anomoeoneis E. Pfitzer, 1871 (basis of record)
Anomoeoneis exilis (Kützing) Cleve, 1895 accepted as Navicula exilis Kützing, 1844 (basis of record)
Anomoeoneis vitrea (Grunow) R.Ross, 1966 accepted as Gomphonema vitreum Grunow, 1878 (basis of record)
Asterionella A.H. Hassall, 1850 (basis of record)
Asterionella formosa Hassall, 1850 (additional source)
Asterionella formosa var. gracillima (Hanztsch) Grunow, 1881 accepted as Diatoma gracillimum Hantzsch in Rabenhorst, 1861 (additional source)
Asterionella gracillima (Hantzsch) Heiberg, 1863 (additional source)
Asteromphalus C.G. Ehrenberg, 1844 (basis of record)
Asteromphalus heptactis (Brébisson) Ralfs, 1861 (basis of record)
Asteromphalus hookeri Ehrenberg, 1844 (basis of record)
Attheya T. West, 1860 (additional source)
Aulacoseira G.H.K. Thwaites, 1848 (basis of record)
Aulacoseira ambigua (Grunow) Simonsen, 1979 (additional source)
Aulacoseira distans (Ehrenberg) Simonsen, 1979 † (additional source)
Aulacoseira granulata (Ehrenberg) Simonsen, 1979 (additional source)
Aulacoseira granulata var. angustissima (O.F.Müller) Simonsen, 1979 accepted as Melosira granulata f. angustissima Otto Müller, 1899 (additional source)
Auricula A.F. Castracane, 1873 (basis of record)
Berkeleya rutilans (Trentepohl ex Roth) Grunow, 1880 (additional source)
Biddulphia S.F. Gray, 1821 (additional source)
Biddulphia aurita (Lyngbye) Brébisson, 1838 accepted as Odontella aurita (Lyngbye) C.Agardh, 1832 (additional source)
Brachysira serians (Brébisson) Round & D.G.Mann, 1981 accepted as Frustulia serians Brébisson, 1838 (additional source)
Brachysira vitrea (Grunow) R.Ross, 1986 accepted as Gomphonema vitreum Grunow, 1878 (new combination reference)
Caloneis bacillaris (Gregory) Cleve (basis of record)
Caloneis bacillum (Grunow) Cleve, 1894 (additional source)
Caloneis fasciata (Lagerstedt) Cleve, 1894 accepted as Caloneis bacillum (Grunow) Cleve, 1894 (basis of record)
Caloneis obtusa (W.Smith) Cleve, 1894 accepted as Navicula obtusa W.Smith, 1853 (basis of record)
Caloneis perlepida (Grunow) A.Berg, 1952 accepted as Navicula perlepida Cleve, 1883 (basis of record)
Caloneis silicula (Ehrenberg) Cleve, 1894 (additional source)
Caloneis silicula var. truncatula (Grunow) Cleve, 1894 accepted as Navicula ventricosa var. truncatula Grunow, 1880 (additional source)
Caloneis silicula var. ventricosa (Ehrenberg) (Donkin) Cleve, 1894 accepted as Navicula ventricosa var. ventricosa Ehrenberg, 1830 (basis of record)
Caloneis ventricosa (Ehrenberg) F.Meister, 1912 (basis of record)
Caloneis ventricosa var. truncatula (Grunow) Meister, 1912 accepted as Navicula ventricosa var. truncatula Grunow, 1880 (basis of record)
Ceratoneis closterium Ehrenberg, 1839 (additional source)
Chaetoceros atlanticus Cleve, 1873 (additional source)
Chaetoceros brevis F.Schütt, 1895 (additional source)
Chaetoceros concavicornis Mangin, 1917 (additional source)
Chaetoceros convolutus Castracane, 1886 (additional source)
Chaetoceros criophilus sensu Hust. In A. Schmidt, 1921, non Castr., 1886 (source of synonymy)