Achnanthes subsessilis Kützing, 1833 accepted as Achnanthes brevipes var. intermedia (Kützing) Cleve, 1895 accepted as Achnanthes intermedia Kützing, 1833 (additional source)
Actinoptychus senarius (Ehrenberg) Ehrenberg, 1843 accepted as Actinocyclus senarius Ehrenberg, 1838 (additional source)
Amphora ovalis (Kützing) Kützing, 1844 (additional source)
Balaenoptera acutorostrata Lacépède, 1804 (additional source)
Balaenoptera physalus (Linnaeus, 1758) (additional source)
Ceratium fusus (Ehrenberg) Dujardin, 1841 accepted as Tripos fusus (Ehrenberg) F.Gómez, 2013 (additional source)
Ceratium tripos (O.F.Müller) Nitzsch, 1817 accepted as Tripos muelleri Bory de Saint-Vincent, 1826 (additional source)
Chaetoceros atlanticus Cleve, 1873 (additional source)
Chaetoceros concavicornis Mangin, 1917 (additional source)
Chaetoceros convolutus Castracane, 1886 (additional source)
Chaetoceros curvisetus Cleve, 1889 (additional source)
Chaetoceros debilis Cleve, 1894 emend Xu, Y.Li & Lundholm in Xu et al., 2020 (additional source)
Chaetoceros diadema (Ehrenberg) Gran, 1897 accepted as Syndendrium diadema Ehrenberg, 1854 † (additional source)
Chaetoceros laciniosus F.Schütt, 1895 (additional source)
Chaetoceros socialis H.S.Lauder, 1864 (additional source)
Cocconeis scutellum Ehrenberg, 1838 (additional source)
Coscinodiscus asteromphalus Ehrenberg, 1844 (additional source)
Coscinodiscus centralis Ehrenberg, 1844 (additional source)
Cyclotella operculata (C.Agardh) Brébisson, 1838 accepted as Frustulia operculata C.Agardh, 1827 accepted as Epithemia operculata (C.Agardh) Ruck & Nakov (basis of record)
Diploneis smithii (Brébisson) Cleve, 1894 accepted as Navicula smithii f. smithii Brébisson in W. Smith, 1856 (additional source)
Enteromorpha intestinalis (Linnaeus) Nees, 1820 accepted as Ulva intestinalis Linnaeus, 1753 (additional source)
Fragilaria capucina Desmazières, 1830 (additional source)
Guinardia flaccida (Castracane) H.Peragallo, 1892 accepted as Rhizosolenia flaccida Castracane, 1886 (additional source)
Hyalodiscus scoticus (Kützing) Grunow, 1879 † (basis of record)
Kogia breviceps (de Blainville, 1838) (additional source)
Leptocylindrus danicus Cleve, 1889 (additional source)
Melosira varians C.Agardh, 1827 (additional source)
Nitzschia closterium (Ehrenberg) W.Smith, 1853 (additional source)
Nitzschia subtilis (Kützing) Grunow, 1880 accepted as Nitzschia linearis var. subtilis (Grunow) Hustedt, 1923 (basis of record)
Odontella aurita (Lyngbye) C.Agardh, 1832 (additional source)
Paralia sulcata (Ehrenberg) Cleve, 1873 (additional source)
Petalonia fascia (O.F.Müller) Kuntze, 1898 (additional source)
Pinnularia viridis (Nitzsch) Ehrenberg, 1843 (additional source)
Proboscia alata (Brightwell) Sundström, 1986 (additional source)
Rhizosolenia hebetata Bailey, 1856 (additional source)
Rhizosolenia shrubsolei Cleve, 1881 (additional source)
Rhizosolenia styliformis T.Brightwell, 1858 (additional source)
Rhodochorton purpureum (Lightfoot) Rosenvinge, 1900 (additional source)
Rhopalodia gibba (Ehrenberg) Otto Müller, 1895 (additional source)
Scytosiphon lomentaria (Lyngbye) Link, 1833 (additional source)
Synedra pulchella (Ralfs ex Kützing) Kützing, 1844 accepted as Ctenophora pulchella (Ralfs ex Kützing) D.M.Williams & Round, 1986 (additional source)
Synedra radians Kützing, 1844 accepted as Fragilaria radians (Kützing) D.M.Williams & Round, 1987 (additional source)
Thalassionema nitzschioides (Grunow) Mereschkowsky, 1902 (additional source)
Thalassiosira gravida Cleve, 1896 (additional source)
Thalassiothrix longissima Cleve & Grunow, 1880 (additional source)