| WebNameShort | |
| Gomphonema angustatum var. sarcophagus Hustedt 1942 |
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| Melosira italica subsp. subarctica Hustedt 1942 |
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| Rhizosolenia curviseta Hustedt 1942 |
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| Rhizosolenia eriensis var. comensis (Zacharias) Hustedt 1942 |
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| Stephanodiscus alpinus Hustedt 1942 |
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| Surirella skvortzowi Hustedt 1942 |
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| Surirella (Suriraya) asperrima Hustedt 1942 |
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| Surirella (Suriraya) bidentula Hustedt 1942 |
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| Surirella (Suriraya) elegans f. constricta (Mayer) Hustedt 1942 |
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| Surirella (Suriraya) elegans f. lata Hustedt 1942 |
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| Synedra rumpens var. neogena (Grunow) Hustedt 1942 |
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