- Bacillariophyta
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- Bacillariophyceae
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- Rhaponeidales
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- Rhaphoneidaceae
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- Sceptroneis
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- Sceptroneis humuncia
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- Sceptroneis humuncia var. tridens
Sceptroneis humuncia var. tridens
Fenner in Schrader & Fenner
- Omnidia : SHTD
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