Asterionella formosa Hassall, 1850
Asterionella formosa var. gracillima (Hanztsch) Grunow, 1881 accepted as Diatoma gracillimum Hantzsch in Rabenhorst, 1861
Asterionella gracillima (Hantzsch) Heiberg, 1863 (uncertain > unassessed )
Ceratoneis amphioxys Rabenhorst, 1853 accepted as Hannaea arcus (Ehrenberg) R.M.Patrick in Patrick & Reimer, 1966
Ceratoneis amphioxys var. amphioxys Rabenhorst, 1853 (uncertain > unassessed )
Ceratoneis amphioxys var. recta Skvortzow & Meyer, 1928 accepted as Hannaea recta (Skvortzow & Meyer) Q. Liu, Glushchenko, Kulikovskiy & Kociolek in Liu et al., 2019
Ceratoneis arcus (Ehrenberg) Kützing, 1844 accepted as Hannaea arcus (Ehrenberg) R.M.Patrick in Patrick & Reimer, 1966
Ceratoneis arcus (Skvortzow) Skabichevskii, 1963 accepted as Ceratoneis amphioxys var. recta Skvortzow & Meyer, 1928 accepted as Hannaea recta (Skvortzow & Meyer) Q. Liu, Glushchenko, Kulikovskiy & Kociolek in Liu et al., 2019
Ceratoneis arcus var. hattoriana Meister, 1914 accepted as Hannaea hattoriana (Meister) Q. Liu, Glushchenko, Kulikovskiy & Kociolek in Liu et al., 2019
Ceratoneis closterium Ehrenberg, 1839 (uncertain > unassessed )
Ctenophora pulchella (Ralfs ex Kützing) D.M.Williams & Round, 1986 (uncertain > unassessed )
Diatoma anceps (Ehrenberg) Kirchner, 1878 accepted as Fragilaria anceps Ehrenberg, 1843
Diatoma ehrenbergii Kützing, 1844 (uncertain > unassessed )
Diatoma ehrenbergii var. grande (W.Smith) Brun, 1880 accepted as Diatoma grande W. Smith, 1855
Diatoma elongatum (Lyngbye) C.A. Agardh, 1824 accepted as Diatoma tenue var. elongatum Lyngbye, 1819
Diatoma fasciculata C.A.Agardh, 1812 accepted as Tabularia fasciculata (C.Agardh) D.M.Williams & Round, 1986
Diatoma hyemalis (Roth) Heiberg, 1863
Diatoma hyemalis var. mesodon (Ehrenberg) Grunow, 1862 accepted as Diatoma mesodon (Ehrenberg) Kützing, 1844
Diatoma mesodon (Ehrenberg) Kützing, 1844 (uncertain > unassessed )
Diatoma rhombica E.O'Meara, 1877
Diatoma tabulatum C.Agardh, 1832 accepted as Tabularia tabulata (C.Agardh) Snoeijs, 1992
Diatoma tenue C. Agardh, 1812 (uncertain > unassessed )
Diatoma tenue var. elongatum Lyngbye, 1819 (uncertain > unassessed )
Diatoma tenuis C.Agardh, 1812
Diatoma vulgaris Bory de Saint-Vincent, 1824
Diatoma vulgaris var. capitulata Grunow, 1862 (uncertain > unassessed )
Diatoma vulgaris var. grande (W.Smith) Grunow, 1862 (uncertain > unassessed )
Diatoma vulgaris var. linearis Grunow, 1881 (uncertain > unassessed )
Fragilaria amphicephaloides Lange-Bertalot, 2013
Fragilaria anceps Ehrenberg, 1843 (uncertain > unassessed )
Fragilaria berolinensis (Lemmermann) Lange-Bertalot, 1993 accepted as Synedra berolinensis var. berolinensis Lemmermann, 1900
Fragilaria bicapitata Mayer, 1917 accepted as Fragilariforma bicapitata (Mayer) D.M.Williams & Round, 1988 accepted as Fragilaria bicapitata f. bicapitata Mayer, 1916 (1917)
Fragilaria bicapitata f. bicapitata Mayer, 1916 (1917) (uncertain > unassessed )
Fragilaria brevistriata Grunow, 1885
Fragilaria brevistriata f. brevistriata Grunow in Van Heurck, 1885 (uncertain > unassessed )
Fragilaria capucina (Kützing) Lange-Bertalot, 1993 accepted as Synedra amphicephala var. amphicephala Kützing, 1844
Fragilaria capucina Desmazières, 1830
Fragilaria capucina subsp. rumpens (Kützing) Lange-Bertalot, 1993
Fragilaria capucina var. amphicephala (Kützing) Lange-Bertalot ex Bukhtiyarova, 1995 accepted as Synedra amphicephala var. amphicephala Kützing, 1844
Fragilaria capucina var. austriaca (Grun) Lange-Bertalot, 1980 (uncertain > unassessed )
Fragilaria capucina var. gracilis (Østrup) Hustedt, 1950 accepted as Fragilaria gracilis Østrup, 1910
Fragilaria capucina var. rumpens (Kützing) Lange-Bertalot ex Bukhtiyarova, 1995 accepted as Synedra rumpens var. rumpens Kützing, 1844
Fragilaria capucina var. vaucheriae (Kützing) Lange-Bertalot, 1980 accepted as Exilaria vaucheriae Kützing, 1833
Fragilaria construens (Ehrenberg) Grunow, 1862
Fragilaria construens f. subsalina (Hustedt) Hustedt, 1957 (uncertain > unassessed )
Fragilaria construens f. venter (Ehrenberg) Hustedt, 1957 accepted as Fragilaria venter var. venter Ehrenberg, 1854
Fragilaria construens var. subsalina Hustedt, 1925 accepted as Pseudostaurosira subsalina (Hustedt) E.A.Morales, 2005 accepted as Fragilaria construens f. subsalina (Hustedt) Hustedt, 1957
Fragilaria construens var. venter (Ehrenberg) Grunow, 1881 accepted as Staurosira venter (Ehrenberg) Cleve & Moeller, 1879 accepted as Fragilaria venter var. venter Ehrenberg, 1854
Fragilaria crotonensis Kitton, 1869
Fragilaria crotonensis var. prolongata Grunow in Van Heurck, 1881 accepted as Fragilaria prolongata (Grunow) Van de Vijver, C.E.Wetzel, Kusber & Ector, 2020
Fragilaria curta Van Heurck, 1909 (uncertain > unassessed )
Fragilaria famelica (Kützing) Lange-Bertalot, 1980 accepted as Synedra famelica var. famelica Kützing, 1844
Fragilaria fasciculata (C.Agardh) Lange-Bertalot, 1980 accepted as Tabularia fasciculata (C.Agardh) D.M.Williams & Round, 1986
Fragilaria gracilis Østrup, 1910 (uncertain > unassessed )
Fragilaria intermedia (Grunow) Grunow in Van Heurck, 1881
Fragilaria intermedia Grunow, 1881 accepted as Fragilaria capucina var. vaucheriae (Kützing) Lange-Bertalot, 1980 accepted as Exilaria vaucheriae Kützing, 1833
Fragilaria islandica Grunow ex Van Heurck, 1881
Fragilaria islandica var. adeliae Manguin, 1960 (uncertain > unassessed )
Fragilaria islandica var. islandica Grunow in Van Heurck, 1881 (uncertain > unassessed )
Fragilaria islandica var. producta Peragallo, 1921 (uncertain > unassessed )
Fragilaria islandica var. stricta Peragallo, 1921 (uncertain > unassessed )
Fragilaria laevissima Cleve, 1898 (uncertain > unassessed )
Fragilaria linearis Castracane, 1886 accepted as Fragilariopsis linearis (Castracane) Frenguelli, 1943 accepted as Fragilaria linearis f. linearis Castracane, 1886
Fragilaria linearis f. linearis Castracane, 1886 (uncertain > unassessed )
Fragilaria mutabilis (W.Smith) Grunow, 1862 accepted as Staurosirella pinnata var. intercedens (Grunow) P.B.Hamilton, 1994 accepted as Fragilaria mutabilis var. intercedens Grunow, 1881
Fragilaria mutabilis var. intercedens Grunow, 1881 (uncertain > unassessed )
Fragilaria mutabilis var. minutissima Grunow in Van Heurck, 1881 (uncertain > unassessed )
Fragilaria obliquecostata van Heurck, 1909 accepted as Fragilariopsis obliquecostata (van Heurck) Heiden, 1928
Fragilaria obliquecostata f. maxima van Heurck, 1909 (uncertain > unassessed )
Fragilaria obliquecostata f. obliquecostata Van Heurck, 1909 (uncertain > unassessed )
Fragilaria pinnata Ehrenberg, 1843 (uncertain > unassessed )
Fragilaria pinnata var. lancettula (Schumann) Hustedt, 1913 accepted as Staurosirella pinnata (Ehrenberg) D.M.Williams & Round, 1987
Fragilaria prolongata (Grunow) Van de Vijver, C.E.Wetzel, Kusber & Ector, 2020
Fragilaria pulchella (Ralfs ex Kützing) Lange-Bertalot, 1980 accepted as Exilaria pulchella Ralfs ex Kützing, 1844
Fragilaria radians (Kützing) D.M.Williams & Round, 1987 accepted as Synedra radians var. radians Kützing, 1844
Fragilaria tabulata (C.Agardh) Lange-Bertalot, 1981 accepted as Tabularia tabulata (C.Agardh) Snoeijs, 1992
Fragilaria tabulata var. truncata (Greville) Lange-Bertalot, 1980 (uncertain > unassessed )
Fragilaria tenuicollis Heib., 1863
Fragilaria tenuicollis var. antarctica West & G.S.West, 1911 (uncertain > unassessed )
Fragilaria ulna (Nitzsch) Lange-Bertalot, 1980 accepted as Bacillaria ulna Nitzsch, 1817
Fragilaria ulna var. acus (Kützing) Lange-Bertalot, 1980 accepted as Synedra acus f. acus Kützing, 1844
Fragilaria vanheurckii Peragallo, 1921 (uncertain > unassessed )
Fragilaria vaucheriae (Kützing) J.B.Petersen, 1938 accepted as Fragilaria capucina var. vaucheriae (Kützing) Lange-Bertalot, 1980 accepted as Exilaria vaucheriae Kützing, 1833
Fragilaria venter Ehrenberg, 1854 accepted as Staurosira venter (Ehrenberg) Cleve & Moeller, 1879 accepted as Fragilaria venter var. venter Ehrenberg, 1854
Fragilaria venter var. venter Ehrenberg, 1854 (uncertain > unassessed )
Fragilaria virescens (Grunow) Skabichevskii, 1960 accepted as Fragilaria virescens f. subsalina Grunow in Van Heurck, 1881
Fragilaria virescens Ralfs, 1843 accepted as Fragilariforma virescens (Ralfs) D.M.Williams & Round, 1988
Fragilaria virescens f. subsalina Grunow in Van Heurck, 1881 (uncertain > unassessed )
Fragilaria virescens f. virescens Ralfs, 1843 (uncertain > unassessed )
Fragilaria virescens var. capitata Østrup, 1910 (uncertain > unassessed )
Fragilaria virescens var. elliptica Hustedt, 1913 accepted as Fragilariforma virescens var. elliptica (Hustedt) Kharitonov, 2005
Fragilariforma bicapitata (Mayer) D.M.Williams & Round, 1988 accepted as Fragilaria bicapitata f. bicapitata Mayer, 1916 (1917)
Fragilariforma virescens (Ralfs) D.M.Williams & Round, 1988
Fragilariforma virescens var. elliptica (Hustedt) Kharitonov, 2005
Grammatophora arcuata Ehrenberg, 1853
Grammatophora arcuata sensu Cleve-Euler, 1915 (uncertain > unassessed )
Hannaea arcus (Ehrenberg) R.M.Patrick in Patrick & Reimer, 1966
Hannaea arcus var. amphioxys (Rabenhorst) R.M.Patrick, 1966 accepted as Hannaea arcus (Ehrenberg) R.M.Patrick in Patrick & Reimer, 1966
Hannaea hattoriana (Meister) Q. Liu, Glushchenko, Kulikovskiy & Kociolek in Liu et al., 2019
Hannaea recta (Skvortzow & Meyer) Q. Liu, Glushchenko, Kulikovskiy & Kociolek in Liu et al., 2019