| WebNameShort | |
| Diploneis contraversa (Mann) F.W. Mills 1934 |
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| Frustulia lewisinana var. julieni (Heribaud & Brun in Heribaud) F.W. Mills 1934 |
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| Navicula cincta var. striata 'Rochoux d'Aubert in Héribaud et al.' according Mills 1934 |
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| Navicula clavata f. minor (Cleve) F.W. Mills 1934 |
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| Navicula clavata f. minuta (Cleve) F.W. Mills 1934 |
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| Navicula contigua var. zechenteri (Pantocsek) F.W. Mills 1934 |
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| Navicula crabro var. confecta (Schmidt in Schmidt et al.) F.W. Mills 1934 |
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| Navicula crabro var. dirhombus (Schmidt in Schmidt et al.) F.W. Mills 1934 |
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| Navicula crabro var. expleta (Schmidt in Schmidt et al.) F.W. Mills 1934 |
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| Navicula crabro var. giebelii (gibelii) (Schmidt) F.W. Mills 1934 |
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| Navicula crabro var. gloriosa (Brun) F.W. Mills 1934 |
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| Navicula cuspidata var. longicolis (Suringar) F.W. Mills 1934 |
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| Navicula cynthia var. elongata (Cleve) F.W. Mills 1934 |
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| Navicula cynthia var. intermedia (M. Peragallo in Peragallo & Peragallo) F.W. Mills 1934 |
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| Navicula cynthia var. sibirica (Cleve) F.W. Mills 1934 |
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| Navicula dactylus var. horrida (M. Peragallo & Heribaud in Heribaud) F.W. Mills 1934 |
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| Navicula dactylus var. miocenica (Heribaud & M. Peragallo in Heribaud) F.W. Mills 1934 |
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| Navicula decurrens var. brevistriata (Grunow) F.W. Mills 1934 |
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| Navicula didelta (Hustedt) F.W. Mills 1934 |
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| Navicula distinctepunctatum (distincte-punctatum) (Hustedt) F.W. Mills 1934 |
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