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| Coscinodiscus oculusiridis f. subbulliens M. Peragallo 1921 |
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| Coscinodiscus omphalanthus var. minor M. Peragallo 1921 |
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| Coscinodiscus pacificus var. australis M. Peragallo 1921 |
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| Coscinodiscus pseudoradiolatus M. Peragallo 1921 |
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| Eunotia tridentula var. ventricosa M. Peragallo 1921 |
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| Fragilaria bongrainii M. Peragallo 1921 |
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| Fragilaria californica var. antarctica M. Peragallo 1921 |
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| Fragilaria californica var. intermedia M. Peragallo 1921 |
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| Fragilaria charcotii M. Peragallo 1921 |
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| Fragilaria islandica var. producta M. Peragallo 1921 |
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| Fragilaria islandica var. stricta M. Peragallo 1921 |
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| Fragilaria sublinearis var. ambigua M. Peragallo 1921 |
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| Fragilaria vanheurckii M. Peragallo 1921 |
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| Gomphonema charcotii M. Peragallo 1921 |
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| Gomphonema groenlandicum var. clusa M. Peragallo 1921 |
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| Gomphonema kamtschaticum var. antarcticum (antarctica) M. Peragallo 1921 |
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| Grammatophora antarctica M. Peragallo 1921 |
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| Grammatophora charcotii M. Peragallo 1921 |
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| Hantzschia amphioxys var. antarctica M. Peragallo 1921 |
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| Hantzschia amphioxys f. minor M. Peragallo 1921 |
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