| WebNameShort | |
| Navicula congolensis Hustedt 1949 |
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| Navicula exiguiformis f. elliptica Hustedt 1949 |
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| Navicula exiguiformis f. undulata Hustedt 1949 |
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| Navicula faceta Hustedt 1949 |
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| Navicula finitima Hustedt 1949 |
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| Navicula molestiformis Hustedt 1949 |
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| Navicula muraliformis Hustedt 1949 |
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| Navicula muticoides Hustedt 1949 |
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| Navicula subcontenta var. africana Hustedt 1949 |
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| Navicula submolesta Hustedt 1949 |
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| Navicula zanonii Hustedt 1949 |
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| Nitzschia accommodata Hustedt 1949 |
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| Nitzschia adapta Hustedt 1949 |
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| Nitzschia aequalis Hustedt 1949 |
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| Nitzschia amphioxoides Hustedt 1949 |
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| Nitzschia bacata (baccata) f. linearis Hustedt 1949 |
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| Nitzschia confinis Hustedt 1949 |
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| Nitzschia congolensis Hustedt 1949 |
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| Nitzschia consummata Hustedt 1949 |
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| Nitzschia damasi Hustedt 1949 |
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