| WebNameShort | |
| Fragilariopsis linearis var. curta (Van Heurck) Frenguelli in Frenguelli & Orlando 1958 |
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| Gomphonema cymbelloides Frenguelli & Orlando 1958 |
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| Gomphonema margaritae Frenguelli & Orlando 1958 |
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| Gyrosigma attenuatum var. antarcticum (antarctica) Frenguelli & Orlando 1958 |
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| Gyrosigma balticum var. lorenzii (Grunow) Frenguelli & Orlando 1958 |
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| Gyrosigma subsalinum (H. Peragallo) Frenguelli & Orlando 1958 |
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| Gyrosigma subsalinum var. antarctica Frenguelli & Orlando 1958 |
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| Hemiaulus rusticus Frenguelli & Orlando 1958 |
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| Licmophora pseudohyalina Frenguelli & Orlando 1958 |
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| Melosira pantocseki (pantocsekii) (Van Heurck) Frenguelli in Frenguelli & Orlando 1958 |
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| Navicula antarctica Frenguelli & Orlando 1958 |
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| Navicula lauriensis Frenguelli & Orlando 1958 |
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| Navicula multicopsis var. cymbelloides (M. Peragallo) Frenguelli & Orlando 1958 |
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| Navicula multicopsis var. producta Frenguelli & Orlando 1958 |
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| Navicula puchella var. antarctica Frenguelli & Orlando 1958 |
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| Navicula sulphurea Frenguelli & Orlando 1958 |
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| Nitzschia bilobata var. antarctica Frenguelli & Orlando 1958 |
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| Nitzschia dissipata var. capitellata Frenguelli & Orlando 1958 |
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| Nitzschia solida Frenguelli & Orlando 1958 |
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| Pinnularia debenedettii (de benedetii) Frenguelli & Orlando 1958 |
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