| Species | as Species | Doubtful |
|---|
Connected successfully| Akashiwo sanguinea (K.Hirasaka) G.Hansen & Ø.Moestrup | | |
| Alexandrium monilatum (Howell, 1953) Balech, 1985 | | |
| Cerataulina pelagica (Cleve) Hendey, 1937 | | |
| Chaetoceros curvisetus P.T. Cleve, 1889 | | |
| Chaetoceros similis P.T. Cleve, 1896 | | |
| Chaetoceros simplex Ostenfeld, 1901 | | |
| Chaetoceros socialis Lauder, 1864 | | |
| Cyclotella caspia Grunow, 1878 | | |
| Cylindrotheca closterium (Ehrenberg) Reiman & Lewin, 1964 | | |
| Dactyliosolen fragilissimus (Bergon) G. R. Hasle, 1991 | ''Rhizosolenia fragillissima''; | |
| Detonula confervacea (P.T. Cleve) Gran, 1900 | | |
| Detonula pumila (Castracane) Gran, 1900 | | |
| Ditylum brightwellii (T. West) Grunow in Van Heurck, 1883 | | |
| Emiliania huxleyi (Lohmann) Hay & Mohler, 1967 | 'Gephyrocapsa huxleyi''; | |
| Eutreptia viridis Perty | | |
| Gymnodinium uberrimum (G.J. Allman) Kofoid & Swezy, 1921 | | |
| Heterocapsa triquetra (Ehrenberg, 1840) Stein, 1883 | | |
| Leptocylindrus minimus Gran, 1915 | | |
| Lingulodinium polyedrum (Stein, 1883) Dodge, 1989 | | |
| Monoraphidium convolutum (Corda) Komárková-Legnerová | ''Monoraphidium convolutus''; | |
| Nitzschia tenuirostris Mer. | | |
| Oxyphysis oxytoxoides Kofoid, 1926 | | |
| Phaeocystis pouchetii (M.P. Hariot, 1892) G. Lagerheim, 1896 | | |
| Porosira glacialis (Grunow) E. Jørgensen, 1905 | | |
| Prorocentrum cordatum (Ostenfeld, 1901) Dodge, 1975 | ''Prorocentrum minimum''; | |
| Prorocentrum micans Ehrenberg, 1834 | | |
| Pseudo-nitzschia delicatissima (P.T. Cleve, 1897) Heiden, 1928 | | |
| Pseudo-nitzschia seriata (P.T. Cleve, 1883) H. & M. Peragallo, 1900 | | |
| Pseudosolenia calcar-avis (Schultze) Sundström, 1986 | | |
| Rhizosolenia setigera Brightwell, 1858 | | |
| Scrippsiella trochoidea (Stein, 1883) Balech ex Loeblich III, 1965 | | |
| Skeletonema costatum (Greville) P.T. Cleve, 1878 | | |
| Thalassiosira baltica (Grunow in P.T. Cleve & Grunow) Ostenfeld, 1901 | ''Thalassiosira subsalina''; | |