| WebNameShort | |
| Stephanodiscus subtilis var. kriegeri Cleve-Euler 1951 |
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| Stephanodiscus subtilis var. van goori Cleve-Euler 1951 |
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| Stephanopyxis broschii var. spinifera Cleve-Euler 1951 |
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| Stephanopyxis melosiroides Cleve-Euler 1951 |
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| Stephanopyxis turris f. fae solutae Cleve-Euler 1951 |
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| Stephanopyxis turris f. globosa Cleve-Euler 1951 |
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| Stephanopyxis vasta var. genuina Cleve-Euler 1951 |
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| Surirella variabilis Cleve-Euler 1951 |
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| Surirella variabilis f. cuneata Cleve-Euler 1951 |
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| Surirella variabilis f. oblonga Cleve-Euler 1951 |
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| Thalassiosira ostenfeldii Cleve-Euler 1951 |
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| Triceratium antediluvianum var. typicum Cleve-Euler 1951 |
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| Triceratium favus f. typica Cleve-Euler 1951 |
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| Triceratium flos var. genuinum Cleve-Euler 1951 |
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| Triceratium heibergii var. genuinum Cleve-Euler 1951 |
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| Triceratium parallelum var. genuinum Cleve-Euler 1951 |
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| Triceratium reticulum f. pentagona Cleve-Euler 1951 |
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| Triceratium reticulum f. trigona Cleve-Euler 1951 |
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| Eunotia fallax f. subimpressa Cleve-Euler in Cleve-Euler et al. 1951 |
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| Eunotia grunowi (grunovii) f. subundulata Cleve-Euler in Cleve-Euler et al. 1951 |
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