Actinocyclus actinochilus (Ehrenberg) Simonsen, 1982 accepted as Coscinodiscus actinochilus Ehrenberg, 1844
Actinocyclus curvatulus Janisch, 1874 (uncertain > unassessed )
Actinocyclus dimorphus (Castracane) Harwood & Maruyama, 1992 accepted as Coscinodiscus dimorphus Castracane, 1886
Actinocyclus ingens Rattray, 1890 † (uncertain > unassessed )
Asteromphalus hookeri Ehrenberg, 1844
Asteromphalus hyalinus Karsten, 1905 (uncertain > unassessed )
Asteromphalus parvulus Karsten, 1905 (uncertain > unassessed )
Azpeitia tabularis (Grunow) G.Fryxell & P.A.Sims, 1986 accepted as Coscinodiscus tabularis var. tabularis Grunow, 1884
Cerataulina bergonii (H.Peragallo) Schütt, 1896 accepted as Cerataulina pelagica (Cleve) Hendey, 1937 accepted as Cerataulina bergonii Ostenfeld, 1903
Cerataulina bergonii Ostenfeld, 1903 (uncertain > unassessed )
Cerataulina pelagica (Cleve) Hendey, 1937 accepted as Cerataulina bergonii Ostenfeld, 1903
Cerataulus bergonii H.Peragallo, 1892 (uncertain > unassessed )
Ceratoneis closterium Ehrenberg, 1839 (uncertain > unassessed )
Chaetoceros affinis Lauder, 1864
Chaetoceros curvisetus Cleve, 1889
Chaetoceros dichaeta Ehrenberg, 1844
Chaetoceros dichaetus Ehrenberg, 1844 accepted as Chaetoceros dichaeta Ehrenberg, 1844
Chaetoceros insignis Proschkina-Lavrenko, 1955 (uncertain > unassessed )
Chaetoceros schuttii Cleve accepted as Chaetoceros affinis Lauder, 1864
Chaetoceros similis Cleve, 1896
Chaetoceros socialis H.S.Lauder, 1864
Chaetoceros willei Gran, 1897 (uncertain > unassessed )
Corethron criophilum Castracane, 1886 (uncertain > unassessed )
Corethron hystrix Hensen, 1887 (uncertain > unassessed )
Corethron pennatum (Grunow) Ostenfeld, 1909
Coscinodiscus actinochilus Ehrenberg, 1844 (uncertain > unassessed )
Coscinodiscus dimorphus Castracane, 1886 (uncertain > unassessed )
Coscinodiscus eccentricus Ehrenberg, 1840 † (uncertain > unassessed )
Coscinodiscus gracilis Karsten, 1905 (uncertain > unassessed )
Coscinodiscus lentiginosus Janisch, 1874 accepted as Thalassiosira lentiginosa (Janisch) Fryxell, 1977 accepted as Coscinodiscus lentiginosus var. lentiginosus Janisch in Schmidt et al., 1878
Coscinodiscus lentiginosus var. lentiginosus Janisch in Schmidt et al., 1878 (uncertain > unassessed )
Coscinodiscus lineatus Ehrenberg, 1841 (uncertain > unassessed )
Coscinodiscus oculus-iridis (Ehrenberg) Ehrenberg, 1840 (uncertain > unassessed )
Coscinodiscus pseudodenticulatus Hustedt, 1958 (uncertain > unassessed )
Coscinodiscus stellaris Roper, 1858 accepted as Stellarima stellaris (Roper) G.R.Hasle & P.A.Sims, 1986 accepted as Coscinodiscus stellaris var. stellaris Roper, 1858
Coscinodiscus stellaris Tempère & Peragallo, 1912 (uncertain > unassessed )
Coscinodiscus stellaris var. stellaris Roper, 1858 (uncertain > unassessed )
Coscinodiscus tabularis Grunow, 1884 accepted as Azpeitia tabularis (Grunow) G.Fryxell & P.A.Sims, 1986 accepted as Coscinodiscus tabularis var. tabularis Grunow, 1884
Coscinodiscus tabularis var. tabularis Grunow, 1884 (uncertain > unassessed )
Coscinodiscus tumidus Janisch, 1874 accepted as Thalassiosira tumida (Janisch) Hasle, 1971 accepted as Coscinodiscus tumidus var. tumidus Janisch in Schmidt et al., 1878
Coscinodiscus tumidus var. tumidus Janisch in Schmidt et al., 1878 (uncertain > unassessed )
Coscinosira oestrupii Ostenfeld, 1900 represented as Shionodiscus oestrupii (Ostenfeld) A.J.Alverson, S.H.Kang & E.C.Theriot, 2006
Cylindrotheca closterium (Ehrenberg) Reimann & J.C.Lewin, 1964
Dactyliosolen antarcticus Castracane, 1886 (uncertain > unassessed )
Dactyliosolen fragilissimus (Bergon) Hasle, 1996 accepted as Rhizosolenia fragilissima f. fragilissima Bergon, 1903
Dactyliosolen tenuijunctus (Manguin) Hasle, 1975 accepted as Rhizosolenia tenuijuncta Manguin, 1960
Diatoma fasciculata C.A.Agardh, 1812 accepted as Tabularia fasciculata (C.Agardh) D.M.Williams & Round, 1986
Diatoma rhombica E.O'Meara, 1877
Diatoma tabulatum C.Agardh, 1832 accepted as Tabularia tabulata (C.Agardh) Snoeijs, 1992
Ditylum brightwellii (T.West) Grunow, 1885 (uncertain > unassessed )
Eucampia antarctica (Castracane) Mangin, 1915 accepted as Moelleria antarctica Castracane, 1886 accepted as Neomoelleria antarctica (Castrac.) S.Blanco & C.E.Wetzel, 2016
Eupodiscus tesselatus Roper, 1858 represented as Roperia tesselata (Roper) Grunow ex Pelletan, 1889
Fragilaria curta Van Heurck, 1909 (uncertain > unassessed )
Fragilaria cylindrus Grunow, 1883 (uncertain > unassessed )
Fragilaria oceanica Cleve, 1873 accepted as Fragilariopsis oceanica (Cleve) Hasle, 1965 accepted as Fragilaria oceanica f. oceanica Cleve, 1873
Fragilaria oceanica f. oceanica Cleve, 1873 (uncertain > unassessed )
Fragilariopsis curta (Van Heurck) Hustedt, 1958
Fragilariopsis cylindrus (Grunow) Krieger, 1954 (uncertain > unassessed )
Fragilariopsis doliolus (Wallich) Medlin & P.A.Sims, 1993
Fragilariopsis kerguelensis (O'Meara) Hustedt, 1952 accepted as Terebraria kerguelensis E.O'Meara, 1876 †
Fragilariopsis obliquecostata (van Heurck) Heiden, 1928
Fragilariopsis oceanica (Cleve) Hasle, 1965 accepted as Fragilaria oceanica f. oceanica Cleve, 1873
Fragilariopsis pseudonana (Hasle) Hasle, 1993 (uncertain > unassessed )
Fragilariopsis rhombica (O'Meara) Hustedt, 1952 accepted as Diatoma rhombica E.O'Meara, 1877
Fragilariopsis ritscheri Hustedt, 1958 (uncertain > unassessed )
Fragilariopsis separanda Hustedt, 1958 (uncertain > unassessed )
Fragilariopsis sublinearis (Van Heurck) Heiden & Kolbe, 1943 accepted as Fragilariopsis obliquecostata (van Heurck) Heiden, 1928
Haslea trompii (Cleve) Simonsen, 1974 accepted as Navicula trompii var. trompii Cleve, 1900
Hemiaulus sinensis Greville, 1865 (uncertain > unassessed )
Hemidiscus cuneiformis Wallich, 1860
Lauderia glacialis (Grunow) Gran, 1900 accepted as Podosira hormoides var. glacialis Grunow, 1884
Leptocylindrus minimus Gran, 1915 (uncertain > unassessed )
Melosira costata Greville, 1866 (uncertain > unassessed )
Moelleria antarctica Castracane, 1886 accepted as Neomoelleria antarctica (Castrac.) S.Blanco & C.E.Wetzel, 2016
Navicula directa (W.Smith) Ralfs, 1861 accepted as Pinnularia directa var. directa W. Smith, 1853
Navicula trompii Cleve, 1901 accepted as Haslea trompii (Cleve) Simonsen, 1974 accepted as Navicula trompii var. trompii Cleve, 1900
Navicula trompii var. trompii Cleve, 1900 (uncertain > unassessed )
Neomoelleria antarctica (Castrac.) S.Blanco & C.E.Wetzel, 2016
Nitzschia bicapitata Cleve, 1901 (uncertain > unassessed )
Nitzschia braarudii G.R.Hasle, 1960 (uncertain > unassessed )
Nitzschia closterium (Ehrenberg) W.Smith, 1853 (uncertain > unassessed )
Nitzschia cylindrus (Grunow) Hasle, 1972 (uncertain > unassessed )
Nitzschia delicatissima Cleve, 1897 (uncertain > unassessed )
Nitzschia delicatula Hasle, 1965 (uncertain > unassessed )
Nitzschia grunowii Hasle, 1972 (uncertain > unassessed )
Nitzschia heimii (Manguin) Hasle, 1965 accepted as Pseudonitzschia heimii Manguin, 1960
Nitzschia lineola Cleve, 1897 (uncertain > unassessed )
Nitzschia longissima (Brébisson) Ralfs, 1861
Nitzschia pseudodelicatissima Hasle, 1976 (uncertain > unassessed )
Nitzschia pseudonana Hasle, 1974 (uncertain > unassessed )
Nitzschia seratia Cleve accepted as Nitzschia seriata Cleve, 1883 accepted as Pseudo-nitzschia seriata (Cleve) H.Peragallo, 1899
Nitzschia seriata Cleve, 1883 accepted as Pseudo-nitzschia seriata (Cleve) H.Peragallo, 1899
Pinnularia directa W.Smith, 1853 accepted as Navicula directa (W.Smith) Ralfs, 1861 accepted as Pinnularia directa var. directa W. Smith, 1853
Pinnularia directa var. directa W. Smith, 1853 (uncertain > unassessed )
Pleurosigma directum Grunow, 1880
Podosira hormoides (Mont.) Kutzing
Podosira hormoides var. glacialis Grunow, 1884 (uncertain > unassessed )
Porosira glacialis (Grunow) Jörgensen, 1905 (uncertain > unassessed )
Porosira pseudodenticulata (Hustedt) Jousé, 1962 accepted as Coscinodiscus pseudodenticulatus Hustedt, 1958
Proboscia alata (Brightwell) Sundström, 1986 (uncertain > unassessed )