| WebNameShort | |
| Asteromphalus ingens Simonsen 1974 |
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| Bacteriastrum furcatum var. hispida (Castracane) Simonsen 1974 |
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| Coscinodiscus concinniformis Simonsen 1974 |
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| Coscinodiscus concinnoides Simonsen 1974 |
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| Coscinodiscus nobilis Grunow emend Simonsen 1974 |
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| Coscinodiscus plicatoides Simonsen 1974 |
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| Cymatonitzschia marina (Lewis) Simonsen 1974 |
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| Cymatonitzschia shulzei (Boyer) Simonsen 1974 |
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| Glyphodesmis rhombica (Cleve) Simonsen 1974 |
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| Haslea crucigera (W. Smith) Simonsen 1974 |
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| Haslea crucigeroides (Hustedt) Simonsen 1974 |
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| Haslea crystallina (Hustedt) Simonsen 1974 |
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| Haslea frauenfeldii (Grunow) Simonsen 1974 |
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| Haslea gigantea (Hustedt) Simonsen 1974 |
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| Haslea gretharum Simonsen 1974 |
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| Haslea hyalinissima Simonsen 1974 |
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| Haslea kjelmanii (Cleve) Simonsen 1974 |
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| Haslea ostrearia (Gaillon) Simonsen 1974 |
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| Haslea sulcata (Cleve) Simonsen 1974 |
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| Haslea trompii (Cleve) Simonsen 1974 |
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