| Species | as Species | Doubtful |
|---|
Connected successfully| Acanthoica quattrospina Lohman, 1903 | | |
| Akashiwo sanguinea (K.Hirasaka) G.Hansen & Ø.Moestrup | | |
| Amphora hyalina Kützing, 1844 | | |
| Anacanthoica acanthos (Schiller) Deflandre, 1952 | ''Acanthoica acanthos''; | |
| Apedinella radians (Lohmann) Campbell, 1973 | ''Apedinella spinifera''; | |
| Ardissonea crystallina (C.A. Agardh) Grunow in Cleve & Grunow, 1880 | | |
| Bacillaria paxillifera (O.F.Müller) T.Marsson, 1901 | ''Bacillaria paradoxa''; | |
| Calyptrosphaera dalmatica | | |
| Cerataulina pelagica (Cleve) Hendey, 1937 | | |
| Chaetoceros abnormis Proschkina-Lavrenko, 1953 | | |
| Chaetoceros compressus Lauder, 1864 | | |
| Chaetoceros insignis Prosckina-Lavrenko | | |
| Chaetoceros scabrosus Prosckina-Lavrenko | | |
| Chaetoceros socialis Lauder, 1864 | | |
| Chaetoceros subtilis (Proschkina-Lavrenko) Proschkina-Lavrenko, 1961 | | |
| Chaetoceros subtilis var. abnormis f. simplex | | |
| Chaetoceros wighamii Brightwell, 1856 | | |
| Cochlodinium adriaticum Schiller, 1933 | ''Gyrodinium adriaticum''; | |
| Coscinodiscus radiatus Ehrenberg, 1841 | | |
| Cyclotella caspia Grunow, 1878 | | |
| Dactyliosolen fragilissimus (Bergon) G. R. Hasle, 1991 | | |
| Dinobryon borgei Lemmermann 1900 | | |
| Diploneis notabilis (Grev.) Cleve, 1894 | | |
| Diplopsalis lenticula Bergh, 1881 | | |
| Ebria tripartita (Shumann) Lemmermann, 1899 | | |
| Emiliania huxleyi (Lohmann) Hay & Mohler, 1967 | | |
| Eutreptia lanowii Steuer, 1904 | | |
| Eutreptia viridis Perty | | |
| Gonyaulax cochlea Meunier, 1919 | | |
| Gonyaulax digitale (Pouchet, 1883) Kofoid, 1911 | | |
| Gonyaulax scrippsae Kofoid, 1911 | | |
| Grammatophora marina (Lyngbye) Kützing, 1844 | | |
| Gymnodinium agile Kofoid et Swezy | | |
| Gymnodinium najadeum Schiller, 1928 | | |
| Gyrodinium aureolum Hulbert, 1957 | | |
| Gyrodinium cornutum (Pouchet, 1885) Kofoid & Swezy, 1921 | | |
| Hermesinum adriaticum O.Zacharias, 1906 | | |
| Heterocapsa triquetra (Ehrenberg, 1840) Stein, 1883 | | |
| Hillea fusiformis (Schiller) Schiller, 1925 | | |
| Leptocylindrus minimus Gran, 1915 | | |
| Licmophora ehrenbergii (Kützing) Grunow, 1867 | | |
| Licmophora flabellata C. Agardh, 1830 | | |
| Lingulodinium polyedrum (Stein, 1883) Dodge, 1989 | | |
| Monoraphidium arcuatum (Korshikov) Hindák, 1970 | | |
| Neoceratium extensum (Gourret) F.Gomez, D.Moreira & P.Lopez-Garcia, 2009 | ''Ceratium strictum''; | |
| 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''; | |
| Nitzschia closterium (Ehrenberg) W. Smith, 1853 | | |
| Nitzschia tenuirostris Mer. | | |
| Oolithotus fragilis (Lohmann) Martini & C.Müller, 1972 | | |
| Peridiniella danica (Paulsen, 1907) Okolodkov et Dogde, 1995 | ''Glenodinium danicum''; | |
| Pleurosigma elongatum W. Smith, 1852 | | |
| Polykrikos schwartzii Bütschli 1873 | | |
| Proboscia alata (Brightwell) Sundström, 1986 | | |
| Prorocentrum compressum (Bailey, 1850) Abé ex Dodge, 1975 | | |
| Prorocentrum cordatum (Ostenfeld, 1901) Dodge, 1975 | | |
| Prorocentrum micans Ehrenberg, 1834 | | |
| Protoperidinium decipiens (Jørgensen, 1899) Parke et Dodge, 1976 | | |
| Protoperidinium divergens (Ehrenberg, 1841) Balech, 1974 | | |
| Protoperidinium granii (Ostenfield, 1906) Balech, 1974 | | |
| Protoperidinium pyriforme var. breve (Paulsen) Balech, 1988 | | |
| Protoperidinium steinii (Jörgensen, 1899) Balech, 1974 | | |
| Pseudo-nitzschia delicatissima (P.T. Cleve, 1897) Heiden, 1928 | | |
| Pseudo-nitzschia pungens (Grunow ex P.T. Cleve, 1897) Hasle, 1993 | | |
| Pseudo-nitzschia seriata (P.T. Cleve, 1883) H. & M. Peragallo, 1900 | | |
| Pseudosolenia calcar-avis (Schultze) Sundström, 1986 | | |
| Scrippsiella trochoidea (Stein, 1883) Balech ex Loeblich III, 1965 | | |
| Skeletonema costatum (Greville) P.T. Cleve, 1878 | | |
| Spirulina tenuissima Kutzing | | |
| Striatella unipunctata (Lyngb.) Ag. | | |
| Surirella minuta Brébisson in Kützing, 1849 | ''Surirella ovata''; | |
| Syracosphaera coronata Schiller | | |
| Tabularia fasciculata (C. Agardh) D.M. Williams & Round, 1986 | ''Tabularia tabulata''; | |
| Tetraselmis inconspicua Butcher | | |
| Thalassionema nitzschioides (Grunow, 1862) Van Heurck, 1896 | | |