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| Navicula directa (W. Smith) Ralfs in Pritchard 1861 |
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| Navicula dissimilis (Rabenhorst) Ralfs in Pritchard 1861 |
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| Navicula distans (W. Smith) Ralfs in Pritchard 1861 |
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| Navicula dux (Ehrenberg) Ralfs in Pritchard 1861 |
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| Navicula elginensis (Gregory) Ralfs in Pritchard 1861 |
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| Navicula ergadensis (Gregory) Ralfs in Pritchard 1861 |
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| Navicula extensa Ralfs in Pritchard 1861 |
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| Navicula fortis (Gregory) Ralfs in Pritchard 1861 |
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| Navicula fusca (Gregory) Ralfs in Pritchard 1861 |
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| Navicula garganica (Rabenhorst) Ralfs in Pritchard 1861 |
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| Navicula globiceps (Gregory) Ralfs in Pritchard 1861 |
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| Navicula gracillima (Gregory) Ralfs in Pritchard 1861 |
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| Navicula gregorii Ralfs in Pritchard 1861 |
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| Navicula hebes Ralfs in Pritchard 1861 |
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| Navicula inflexa (Gregory) Ralfs in Pritchard 1861 |
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| Navicula integra (W. Smith) Ralfs in Pritchard 1861 |
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| Navicula kerguelensis (Ehrenberg) Ralfs in Pritchard 1861 |
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| Navicula leptostigma (Ehrenberg) Ralfs in Pritchard 1861 |
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| Navicula linearis (Gregory) Ralfs in Pritchard 1861 |
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| Navicula longa (Gregory) Ralfs in Pritchard 1861 |
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