| Species | as Species | Doubtful |
|---|
Connected successfully| Anabaena spiroides Klebahn, 1895 | | |
| Aphanizomenon flos-aquae (Linnaeus) Ralfs ex Bornet & Flahault, 1888 | also ''Anabaena flos-aquae''; | |
| Asterionella gracillima (Hantzsch) Heiberg, 1863 | | |
| Cymbella inaequalis Grunow & Cleve, 1878 | ''Cymbella ehrenbergii''; | |
| Diatoma tenue C.A. Agardh, 1812 | ''Diatoma elongatum var. tenue''; | |
| Dinobryon sertularia Ehrenberg, 1834 | | |
| Dinophysis caudata Saville-Kent, 1881 | ''Dinophysis homunculus''; | |
| Microcystis aeruginosa (Kützing) Kützing, 1846 | ''Clathrocystis aeruginosa''; | |
| Microcystis ichthyoblabe Kützing, 1843 | | |
| 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''; | |
| Noctiluca scintillans (Macartney, 1810) Kofoid, 1920 | ''Noctiluca miliaris''; | |
| Protoperidinium divergens (Ehrenberg, 1841) Balech, 1974 | ''Peridinium divergens''; | |
| Scenedesmus quadricauda (Turpin) Brébisson in Brébisson & Godey, 1835 | | |
| Skeletonema costatum (Greville) P.T. Cleve, 1878 | | |
| Stenopterobia delicatissima (Lewis) Brébisson ex Van Heurck, 1896 | ''Synedra acus var. delicatissima''; | |