| Nominal Species (n = 7) | Present allocation (n = 6) | Ref. |
|---|---|---|
| Phormidium corallyticum Rützler & Santavy | Phormidium corallyticum | 80701 |
| Trichodesmium errythraeum Ehrenberg ex Gomont, 1892 | Trichodesmium erythraeum | 129013 |
| Trichodesmium erythraeum Ehrenberg ex Gomont, 1892 | Trichodesmium erythraeum | 3477 |
| Microcoleus lyngbyaceus Kützing ex Forti, 1907 | Microcoleus lyngbyaceus | 3477 |
| Phormidium mucicola Huber-PeStalozzi & Naumann | Phormidium mucicola | 80701 |
| Oscillatoria nigroviridis Thwaites ex Gomont, 1892 | Phormidium nigroviride | 3477 |
| Trichodesmium thiebautii Gomont | Trichodesmium thiebautii | 81807 |