Fragilariaceae
| Asterionella | Campylosira | Campylostylus | Centronella | |
| Ceratoneis | Clavicula | Climacosphenia | Cyclophora | |
| Cymatosira | Diatoma | Dimerogramma | Entopyla | |
| Fragilaria | Fragilariopsis | Gephyra | Glyphodesmis | |
| Grammatophora | Licmophora | Licmopsphenia | Meridion | |
| Omphalopsis | Opephora | Plagiogramma | Podocystis | |
| Pseudoeunotia | Rhabdonema | Rhaphoneis | Sceptroneis | |
| Striatella | Synedra | Synedrosphenia | Tabellaria | |
| Tetracyclus | Thalassionema | Thalassiothrix | Trachysphenia | |
| Tubularia | Weissflogia | Ardissonia # | ||
Mit # gekennzeichnete Gattungen sind nicht im Bestimmungsschlüssel erfaßt.
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| Asterionella . |
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| Climacosphenia . |
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| Diatoma . |
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| Dimerogramma . |
2 |
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| Entopyla . |
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| Fragilaria . |
2 |
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| Glyphodesmis . |
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| Grammatophora . |
2 |
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| Licmophora . |
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| Meridion . |
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| Opephora . |
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| Plagiogramma . |
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| Podocystis . |
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| Rhabdonema . |
2 |
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| Rhaphoneis . |
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| Sceptroneis . |
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| Synedra . |
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| Tabellaria . |
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| Tetracyclus . |
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Ardissonia # |