| Species | as Species | Doubtful |
|---|
Connected successfully| Achnanthes brevipes C.A. Agardh, 1824 | | |
| Achnanthes longipes Agardh, 1824 | | |
| Actinocyclus octonarius Ehrenberg, 1838 | ''Actinocyclus ehrenbergii''; | |
| Actinocyclus octonarius var. crassus (W. Smith) Hendey, 1954 | ''Actinocyclus ehrenbergii var. crassa''; | |
| Bacillaria paxillifera (O.F.Müller) T.Marsson, 1901 | ''Bacillaria paradoxa''; | |
| Cerataulina velifera Mereschkowsky | | |
| Chaetoceros affinis Lauder, 1864 | | |
| Chaetoceros ceratosporus Ostenfeld, 1910 | | |
| Chaetoceros curvisetus P.T. Cleve, 1889 | | |
| Chaetoceros danicus P.T.Cleve, 1889 | | |
| Chaetoceros densus P.T. Cleve, 1901 | | |
| Chaetoceros holsaticus Schütt, 1895 | | |
| Chaetoceros laciniosus Schütt, 1895 | | |
| Chaetoceros lauderi Ralfs in Lauder, 1864 | | |
| Chaetoceros mitra (J.W. Bailey) P.T. Cleve, 1896 | | |
| Chaetoceros neogracilis VanLand., 1968 | ''Chaetoceros gracilis''; | |
| Chaetoceros peruvianus Brightw. | | |
| Chaetoceros similis P.T. Cleve, 1896 | | |
| Chaetoceros simplex Ostenfeld, 1901 | | |
| Chaetoceros socialis f. radians (F. Schütt) A.I. Proshkina-Lavrenko, 1963 | ''Chaetoceros radians''; | |
| Chaetoceros subtilis (Proschkina-Lavrenko) Proschkina-Lavrenko, 1961 | | |
| Cocconeis scutellum (Grunow in Van Heurck) P.T. Cleve, 1896 | | |
| Coscinodiscus gigas Ehrenb. 1841 | | |
| Coscinodiscus granii Gough, 1905 | | |
| Coscinodiscus granii var. aralensis (Ostenfeld 1908) Hustedt | | |
| Coscinodiscus marginatus Ehrenberg, 1841 (1843, 1844) | | |
| Coscinodiscus nitidus W. Gregory, 1857 | | |
| Coscinodiscus oculus-iridis (Ehrenberg) Ehrenberg, 1854 | | |
| Coscinodiscus perforatus var. pavillardii (Forti) Hust., 1928 | | |
| Coscinodiscus radiatus Ehrenberg, 1841 | | |
| Dinophysis acuminata Claparède & Lachmann, 1859 | | |
| Dinophysis acuta Ehrenberg, 1841 | | |
| Dinophysis caudata Saville-Kent, 1881 | | |
| Dinophysis fortii Pavillard, 1923 | | |
| Dinophysis hastata Stein, 1883 | | |
| Dinophysis pulchella (Lebour) Balech | ''Phalacroma pulchellum''; | |
| 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 | | |
| Endictya oceanica Ehrenberg, 1845 | | |
| Gonyaulax diegensis Kofoid, 1911 | | |
| Gonyaulax digitale (Pouchet, 1883) Kofoid, 1911 | | |
| Gonyaulax minima Matzenauer, 1933 | | |
| Gonyaulax polygramma Stein, 1883 | | |
| Gonyaulax scrippsae Kofoid, 1911 | | |
| Gonyaulax spinifera (Claparède & Lachmann, 1859) Diesing, 1866 | also ''Peridinium spiniferum''; | |
| Grammatophora angulosa Ehrenberg, 1841 | | |
| Grammatophora marina (Lyngbye) Kützing, 1844 | | |
| Hemiaulus hauckii Grunow in Van Heurck, 1882 | | |
| Heterocapsa triquetra (Ehrenberg, 1840) Stein, 1883 | ''Peridinium triquetrum''; | |
| Leptocylindrus adriaticus Schroder | | |
| Leptocylindrus danicus P.T. Cleve, 1889 | | |
| Licmophora abbreviata C.A. Agardh, 1831 | | |
| Lingulodinium polyedrum (Stein, 1883) Dodge, 1989 | ''Gonyaulax polyedra''; | |
| Lyngbya semiplena (C. Agardh) J. Agardh, 1842 | | |
| Melosira dubia C.G. Kützing, 1844 | | |
| Melosira lineata (Dillwyn) C.A. Agardh, 1824 | ''Melosira juergensi''; | |
| Melosira moniliformis (O.F. Müller) C. Agardh, 1824 | | |
| Melosira nummuloides C.A. Agardh, 1824 emend. Crawford, 1975 | | |
| Meridion circulare (Greville) C. Agardh, 1831 | | |
| 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 tripos (O.F.Müller) F.Gomez, D.Moreira & P.Lopez-Garcia, 2009 | ''Ceratium tripos''; | |
| Nitzschia closterium (Ehrenberg) W. Smith, 1853 | | |
| Odontella mobiliensis (J.W. Bailey) Grunow, 1884 | ''Biddulphia mobiliensis''; | |
| Oscillatoria bonnemaisonii Crouan in Desmazières ex Gomont, 1892 | | |
| Paralia sulcata (Ehrenberg) P.T. Cleve, 1873 | ''Melosira sulcata''; | |
| Phalacroma rotundata (Claparéde & Lachmann) Kofoid & Michener, 1911 | | |
| Phormidium nigroviride (Thwaites ex Gomont) Anagnostidis & Komárek, 1988 | ''Oscillatoria nigroviridis''; | |
| Pleurosira laevis (Ehrenberg) Compère, 1982 | ''Biddulphia laevis''; | |
| Porosira glacialis (Grunow) E. Jørgensen, 1905 | | |
| Preperidinium meunierii (Pavillard, 1907) Elbrächter, 1993 | ''Glenodinium lenticula f. minor''; | |
| Proboscia alata (Brightwell) Sundström, 1986 | ''Rhizosolenia alata f. gracillima''; | |
| Prorocentrum balticum (Lohmann, 1908) Loeblich, 1970 | ''Exuviaella baltica''; | |
| Prorocentrum compressum (Bailey, 1850) Abé ex Dodge, 1975 | ''Exuviaella compressa''; | |
| Prorocentrum micans Ehrenberg, 1834 | | |
| Protoceratium reticulatum (Claparède et Lachmann, 1859) Bütschli, 1885 | | |
| Protoperidinium bipes (Paulsen, 1904) Balech, 1974 | ''Peridinium minusculum''; | |
| Protoperidinium brevipes (Paulsen, 1908) Balech, 1974 | ''Peridinium brevipes''; | |
| Protoperidinium brochii (Kofoid & Swezy) Balech | ''Peridinium brochii''; | |
| Protoperidinium conicum (Gran, 1900) Balech, 1974 | ''Peridinium conicum f. concava''; | |
| Protoperidinium crassipes (Kofoid, 1907) Balech, 1974 | ''Peridinium crassipes''; | |
| Protoperidinium divergens (Ehrenberg, 1841) Balech, 1974 | ''Peridinium divergens''; | |
| Protoperidinium globulus (Stein, 1883) Balech, 1974 | ''Peridinium globulus''; | |
| Protoperidinium granii (Ostenfield, 1906) Balech, 1974 | ''Peridinium granii''; | |
| Protoperidinium oceanicum (VanHöffen, 1897) Balech, 1974 | ''Peridinium oceanicum''; | |
| Protoperidinium pallidum (Ostenfeld, 1899) Balech, 1973 | ''Peridinium pallidum''; | |
| Protoperidinium pedunculatum (Schütt) Balech, 1895 | ''Peridinium pedunculatum''; | |
| Protoperidinium pellucidum Bergh, 1882 | ''Peridinium pellucidum''; | |
| Protoperidinium solidicorne (Mangin, 1922) Balech, 1974 | ''Peridinium solidicorne''; | |
| Protoperidinium steinii (Jörgensen, 1899) Balech, 1974 | ''Peridinium steinii''; | |
| Protoperidinium subinerme (Paulsen, 1904) Loeblich III, 1970 | ''Peridinium subinerme''; | |
| Pseudosolenia calcar-avis (Schultze) Sundström, 1986 | ''Rhizosolenia calcar-avis''; | |
| Pyrophacus horologicum Stein, 1883 | | |
| Rhabdonema adriaticum Kützing, 1844 | | |
| Skeletonema costatum (Greville) P.T. Cleve, 1878 | | |
| Spirulina subsalsa Örstedt ex Gomont 1892 | | |
| Surirella spiralis Kützing, 1844 | | |
| Synedra brockmanii Hust. | | |
| Tabularia fasciculata (C. Agardh) D.M. Williams & Round, 1986 | ''Synedra tabulata''; | |
| Thalassionema nitzschioides (Grunow, 1862) Van Heurck, 1896 | | |
| Thalassiosira angulata (Gregory) Hasle, 1978 | ''Thalassiosira decipiens''; | |
| Thalassiosira eccentrica (Ehrenberg) P.T. Cleve, 1903-1904 | ''Coscinodiscus excentricus''; | |
| Thalassiosira excentrica var. fasciculata Hustedt | ''Coscinodiscus excentricus var. fasciculata''; | |
| Thalassiosira oestrupii (Ostenfeld) Hasle | ''Coscinosira oestrupii''; | |
| Toxarium undulatum J.W. Bailey, 1854 | ''Synedra undulata''; | |
| Triceratium antediluvianum (Ehrenberg) Grunow in Hustedt, 1927 | | |
| Trochiscia brachiolata (Möbius) Lemmermann | | |