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| Campylodiscus thuretii var. lineolatus Proschkina-Lavrenko 1955 |
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| Chaetoceros affinis f. schuettii (Cleve) Proschkina-Lavrenko 1955 |
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| Chaetoceros lorenzianus var. solitarius Proschkina-Lavrenko 1955 |
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| Chaetoceros lorenzianus f. subsalinus Proschkina-Lavrenko 1955 |
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| Chaetoceros scabrosus Proschkina-Lavrenko 1955 |
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| Chaetoceros similis f. solitarius Proschkina-Lavrenko 1955 |
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| Synedra tabulata var. intermedia (Grunow in Van Heurck) Proschkina-Lavrenko 1955 |
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