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| Rhopalodia musculus var. succincta Peragallo & Peragallo 1897-1908 |
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| Rhopalodia musculus f. typica Peragallo & Peragallo 1897-1908 |
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| Surirella smithii var. medulica Peragallo & Peragallo 1897-1908 |
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| Synedra laevigata var. provincialis Peragallo & Peragallo 1897-1908 |
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| Triceratium antediluviana var. minor Peragallo & Peragallo 1897-1908 |
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| Trigonium arcticum f. campechiana Peragallo & Peragallo 1897-1908 |
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| Trigonium arcticum var. formosa Peragallo & Peragallo 1897-1908 |
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| Trigonium repletum Peragallo & Peragallo 1897-1908 |
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| Navicula lyra var. densestriata Peragallo & Pergallo 1897-1908 |
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| Navicula lyra var. robertsoniana (robertsiana) sensu Peragallo & Peragallo 1897-1908 |
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| Navicula scopulorum var. perlonga sensu Peragallo & Peragallo 1897-1908 |
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| Synedra superba sensu Peragallo & Peragallo 1897-1908 |
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| Trachyneis aspera var. pulchella sensu Peragallo & Peragallo 1897-1908 |
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| Nitzschia frauenfeldii var. major Tempère in Peragallo 1897-1908 |
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