| Species | as Species | Doubtful |
|---|
Connected successfully| Alexandrium ostenfeldii (Paulsen) Balech & Tangen, 1985 | | |
| Asterionellopsis glacialis (Castracane) Round in Round et al., 1990 | | |
| Bacteriastrum hyalinum Lauder, 1864 | | |
| Cochlodinium citron Kofoid & Swezy, 1921 | | |
| Dinophysis odiosa (Pavillard, 1930) Tai & Skogsberg, 1934 | | |
| Gymnodinium stellatum Hulbult, 1957 | | |
| Lioloma pacificum (Cupp) Hasle, 1996 | | |
| Lithodesmium undulatum Ehrenberg, 1841 | | |
| Odontella sinensis (Greville) Grunow, 1884 | | |
| Oxytoxum variabile Schiller, 1937 | | |
| Phaeocystis pouchetii (M.P. Hariot, 1892) G. Lagerheim, 1896 | | |
| Rhizosolenia setigera Brightwell, 1858 | | |
| Rhizosolenia styliformis Brightwell, 1858 | | |
| Thalassionema frauenfeldii (Grunow) Hallegraeff, 1986 | ''Thalassiothrix frauenfeldii''; | |