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| Achnanthes biasolettiana var. fossilis Frenguelli 1936 |
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| Amphora oscitans Frenguelli 1936 |
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| Amphora rostrigera Frenguelli 1936 |
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| Anomoeoneis concreta Frenguelli 1936 |
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| Cocconeis rouxii var. calamae Frenguelli 1936 |
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| Cocconeis rouxii var. intermedia (M. Peragallo & Héribaud in Héribaud) Frenguelli 1936 |
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| Denticula thermalis var. fossilis Frenguelli 1936 |
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| Heribaudia fosculus Frenguelli 1936 |
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| Mastogloia atacamae var. calamae Frenguelli 1936 |
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| Mastogloia patens Frenguelli 1936 |
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| Navicula lorami Frenguelli 1936 |
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| Nitzschia calamae Frenguelli 1936 |
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| Nitzschia punae Frenguelli 1936 |
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| Nitzschia punae var. major Frenguelli 1936 |
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| Stephanopyxis avita Frenguelli 1936 |
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| Surirella (Suriraya) dubia Frenguelli 1936 |
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| Triceratium weissii (weissei) var. schmidti Frenguelli 1936 |
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| Vanheurckia loaensis Frenguelli 1936 |
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| Vanheurckia splendida Frenguelli 1936 |
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