| WebNameShort | |
| Achnanthidium brevipes var. minor (H. Peragallo in H. Peragallo & M. Peragallo) Mereschkowsky 1902 |
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| Actinoneis lorenziana (Grunow) Mereschkowsky 1902 |
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| Actinoneis lorenziana var. parva Mereschkowsky 1902 |
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| Biddulphia laevis f. minor Mereschkowsky 1902 |
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| Licmophora inflata var. intermedia Mereschkowsky 1902 |
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| Nitzschia incolor var. sigmoidea Mereschkowsky 1902 |
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| Nitzschiella tenuirostris f. directa Mereschkowsky 1902 |
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| Nitzschiella tenuirostris f. semicircularis Mereschkowsky 1902 |
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| Opephora pacifica f. parva Mereschkowsky 1902 |
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| Rhoicosphenia curvata var. sessilis Mereschkowsky 1902 |
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| Synedra grandis Mereschkowsky 1902 |
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