| Species | as Species | Doubtful |
|---|
Connected successfully| Achnanthes brevipes C.A. Agardh, 1824 | | |
| Achnanthes longipes Agardh, 1824 | | |
| Akashiwo sanguinea (K.Hirasaka) G.Hansen & Ø.Moestrup | ''Gymnodinium splendens''; | |
| Asteromphalus robustus Castracane, 1875 | | |
| Bellerochea horologicalis von Stosch, 1980 | ''Bellerochea malleus''; | Doubtful |
| Calyptrosphaera incisa Schill. | | |
| Cerataulina pelagica (Cleve) Hendey, 1937 | ''Cerataulina bergonii''; | |
| Chaetoceros affinis Lauder, 1864 | | |
| Chaetoceros curvisetus P.T. Cleve, 1889 | | |
| Chaetoceros danicus P.T.Cleve, 1889 | | |
| Chaetoceros dubius Pr.-Lavrenko | | |
| Chaetoceros insignis Prosckina-Lavrenko | | |
| Chaetoceros lauderi Ralfs in Lauder, 1864 | | |
| Chaetoceros lorenzianus Grunow, 1863 | | |
| Chaetoceros muelleri Lemmermann, 1898 | | |
| Chaetoceros rigidus Ostenfeld | | |
| Chaetoceros similis P.T. Cleve, 1896 | | |
| Chaetoceros socialis Lauder, 1864 | | |
| Chaetoceros subtilis (Proschkina-Lavrenko) Proschkina-Lavrenko, 1961 | | |
| Cocconeis scutellum (Grunow in Van Heurck) P.T. Cleve, 1896 | | |
| Coscinodiscus granii Gough, 1905 | | |
| Cyclotella caspia Grunow, 1878 | | |
| Dactyliosolen fragilissimus (Bergon) G. R. Hasle, 1991 | ''Rhizosolenia fragillissima''; | |
| Detonula confervacea (P.T. Cleve) Gran, 1900 | | |
| Diatoma tenue C.A. Agardh, 1812 | ''Diatoma elongatum''; | |
| Dinophysis fortii Pavillard, 1923 | | |
| Dinophysis hastata Stein, 1883 | | |
| Dinophysis ovum Schütt, 1895 | | |
| Dinophysis sacculus Stein, 1883 | | |
| Diplopsalis lenticula Bergh, 1881 | ''Glenodinium lenticula''; | |
| Distephanus speculum (Ehrenberg) Haeckel, 1887 | | |
| Ditylum brightwellii (T. West) Grunow in Van Heurck, 1883 | | |
| Ebria tripartita (Shumann) Lemmermann, 1899 | | |
| Emiliania huxleyi (Lohmann) Hay & Mohler, 1967 | ''Pontosphaera huxleyi''; | |
| Entomoneis alata (Ehrenberg) Ehrenberg, 1845 | ''Amphiprora alata''; | |
| Entomoneis paludosa (W. Smith) Reimer, 1975 | ''Amphiprora paludosa''; | |
| Eutreptia lanowii Steuer, 1904 | | |
| Fragilaria striatula Lyngbye, 1819 | | |
| Glenodinium paululum Lindemann | | |
| Glenodinium pilula (Ostenfeld) Schiller | | |
| Gonyaulax digitale (Pouchet, 1883) Kofoid, 1911 | | |
| Gonyaulax spinifera (Claparède & Lachmann, 1859) Diesing, 1866 | | |
| Grammatophora marina (Lyngbye) Kützing, 1844 | | |
| Gymnodinium agile Kofoid et Swezy | | |
| Gymnodinium helveticum Penard 1891 | ''Glenodinium apiculatum''; | |
| Gymnodinium rhomboides Schütt, 1895 | | |
| Gyrodinium fusiforme Koifoid & Swezy, 1921 | | |
| Gyrodinium lachryma (Meunier, 1910) Kofoid & Swezy, 1921 | | |
| Gyrodinium pingue (Schütt, 1895) Kofoid et Swezy, 1921 | | |
| Hermesinum adriaticum O.Zacharias, 1906 | | |
| Hyalodiscus ambiguus (Grun.) Temp. Et Perag. 1890 | | |
| Leptocylindrus minimus Gran, 1915 | | |
| Licmophora flabellata C. Agardh, 1830 | | |
| Licmophora gracilis (Ehrenberg) Grunow, 1867 | | |
| Lingulodinium polyedrum (Stein, 1883) Dodge, 1989 | ''Gonyaulax polyedra''; | |
| Navicula latissima var. capitata Pantocsek | | Doubtful |
| Navicula pennata A. Schmidt, 1876 | | |
| Neoceratium extensum (Gourret) F.Gomez, D.Moreira & P.Lopez-Garcia, 2009 | ''Ceratium extensum''; | |
| Neoceratium furca (Ehrenberg) F.Gomez, D.Moreira & P.Lopez-Garcia, 2009 | ''Ceratium furca''; | |
| Neoceratium fusus (Ehrenberg) F.Gomez, D.Moreira & P.Lopez-Garcia, 2009 | ''Ceratium fusus''; | |
| Neoceratium inflatum (Kofoid) F.Gomez, D.Moreira & P.Lopez-Garcia, 2009 | ''Ceratium inflatum''; | |
| Neoceratium macroceros (Ehrenberg) F.Gomez, D.Moreira & P.Lopez-Garcia, 2009 | ''Ceratium macroceros''; | |
| Neoceratium tripos (O.F.Müller) F.Gomez, D.Moreira & P.Lopez-Garcia, 2009 | ''Ceratium tripos''; | |
| Nitzschia closterium (Ehrenberg) W. Smith, 1853 | | |
| Nitzschia commutata Grunow in Cleve & Grunow, 1880 | | Doubtful |
| Nitzschia longissima (Brébisson in Kützing) Ralfs in Pritchard, 1861 | | |
| Nitzschia tenuirostris Mer. | | |
| Oblea rotunda (Lebour, 1922) Balech, 1964 ex Sournia, 1973 | ''Glenodinium rotundum''; | |
| Oolithotus fragilis (Lohmann) Martini & C.Müller, 1972 | ''Coccolithus fragilis''; | |
| Palusphaera vandeli Lecal, 1967 | ''Rhabdosphaera longistylis''; | |
| Paralia sulcata (Ehrenberg) P.T. Cleve, 1873 | ''Melosira sulcata''; | |
| Peridiniella danica (Paulsen, 1907) Okolodkov et Dogde, 1995 | ''Glenodinium danicum''; | |
| Phalacroma rotundata (Claparéde & Lachmann) Kofoid & Michener, 1911 | also ''Phalacroma rudgei''; | |
| Pleurosigma angulatum (Quekett, 1848) Wm. Smith, 1853 | | |
| Pleurosigma elongatum W. Smith, 1852 | | |
| Pleurosigma rigidum Smith, 1853 | | |
| Podosira hormoides (Montagne) Kützing | | |
| Proboscia alata (Brightwell) Sundström, 1986 | ''Rhizosolenia alata''; | |
| Prorocentrum compressum (Bailey, 1850) Abé ex Dodge, 1975 | ''Exuviaella compressa''; | |
| Prorocentrum cordatum (Ostenfeld, 1901) Dodge, 1975 | ''Exuviaella cordata''; | |
| Prorocentrum micans Ehrenberg, 1834 | | |
| Prorocentrum obtusum Ostenfeld, 1908 | | |
| Prorocentrum scutellum Schröder, 1900 | | |
| Protoceratium reticulatum (Claparède et Lachmann, 1859) Bütschli, 1885 | | |
| Protoperidinium brevipes (Paulsen, 1908) Balech, 1974 | ''Peridinium brevipes''; | |
| Protoperidinium crassipes (Kofoid, 1907) Balech, 1974 | ''Peridinium crassipes''; | |
| Protoperidinium depressum (Bailey, 1850) Balech, 1974 | ''Peridinium depressum''; | |
| Protoperidinium excentricum (Paulsen, 1907) Balech, 1974 | ''Peridinium excentricum''; | |
| Protoperidinium granii (Ostenfield, 1906) Balech, 1974 | ''Peridinium granii''; | |
| Protoperidinium pallidum (Ostenfeld, 1899) Balech, 1973 | ''Peridinium pallidum''; | |
| Protoperidinium pentagonum (Gran, 1902) Balech, 1974 | ''Peridinium pentagonum''; | |
| Protoperidinium steinii (Jörgensen, 1899) Balech, 1974 | ''Peridinium steinii''; | |
| Pseudo-nitzschia seriata (P.T. Cleve, 1883) H. & M. Peragallo, 1900 | ''Nitzschia seriata''; | |
| Pseudosolenia calcar-avis (Schultze) Sundström, 1986 | ''Rhizosolenia calcar-avis''; | |
| Pterosperma cristatum Schiller, 1925 | | |
| Pyrophacus horologicum Stein, 1883 | | |
| Rhabdosphaera hispida Lohmann | | |
| Rhoicosphenia abbreviata (C.A. Agardh) Lange-Bertalot, 1980 | ''Rhoicosphenia curvata''; | |
| Rhopalodia musculus (Kützing) O.F. Müller, 1900 | | |
| Skeletonema costatum (Greville) P.T. Cleve, 1878 | | |
| Thalassionema frauenfeldii (Grunow) Hallegraeff, 1986 | ''Thalassiothrix frauenfeldii''; | |
| Thalassionema nitzschioides (Grunow, 1862) Van Heurck, 1896 | | |
| Thalassiosira angulata (Gregory) Hasle, 1978 | ''Thalassiosira decipiens''; | |
| Thalassiosira antiqua var. septata Proschkina-Lavrenko 1955 | | |
| Thalassiosira baltica (Grunow in P.T. Cleve & Grunow) Ostenfeld, 1901 | ''Thalassiosira subsalina''; | |
| Thalassiosira eccentrica (Ehrenberg) P.T. Cleve, 1903-1904 | | |
| Thalassiosira parva Proshk.-Lavr., 1955 | | |