| WebNameShort | |
| Eunotiopsis monilifera (Petit) Hustedt 1930 |
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| Biddulphia rhombus f. tetragona (Schmidt in Schmidt et al.) Hustedt 1930 |
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| Chaetoceros atlanticus var. neapolitana (Schroder) Hustedt 1930 |
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| Chaetoceros peruvianus (peruvianum) f. gracilis (Schroder) Hustedt 1930 |
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| Chaetoceros atlanticus var. skeleton (sceleton) (Schutt) Hustedt 1930 |
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| Chaetoceros concavicornis f. volans (Schutt) Hustedt 1930 |
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| Bellerochea malleus f. tetragona (Van Heurck) Hustedt 1930 |
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| Odontotropis danicus Debes ex Hustedt 1930 |
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| Odontotropis klavsenii Debes ex Hustedt 1930 |
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| Bacteriastrum varians Hustedt 1930 |
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| Ditylum brightwellii f. biangulata Hustedt 1930 |
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| Triceratium antediluvianum f. pentagona Hustedt 1930 |
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| Triceratium balearicum f. quadrata Hustedt 1930 |
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| Triceratium ischaboense Hustedt 1930 |
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| Triceratium pentacrinus f. quadrata Hustedt 1930 |
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| Triceratium reticulum f. pentagona Hustedt 1930 |
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| Triceratium reticulum f. quadrangularis Hustedt 1930 |
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| Triceratium robertsianum f. quadrata Hustedt 1930 |
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| Triceratium spinosum f. tetragona Hustedt 1930 |
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| Biddulphia minima Schiller in Hustedt 1930 |
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