| WebNameShort | |
| Navicula tuscula var. densistriata Skvortzow 1936 |
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| Navicula undulata Skvortzow 1936 |
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| Neidium obliquestriatum (oblique-striatum) var. elongata Skvortzow 1936 |
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| Pinnularia braunii f. nipponica Skvortzow 1936 |
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| Pinnularia braunii var. nipponica Skvortzow 1936 |
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| Pinnularia cucumis Skvortzow 1936 |
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| Pinnularia gentilis var. neogena Skvortzow 1936 |
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| Pinnularia gibba var. biwensis Skvortzow 1936 |
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| Pinnularia kawamurae Skvortzow 1936 |
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| Pinnularia lacusbiwa (lacus biwa) Skvortzow 1936 |
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| Pinnularia major (maior) var. nipponica Skvortzow 1936 |
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| Pinnularia nakaii Skvortzow 1936 |
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| Pinnularia platycephala f. angustior Skvortzow 1936 |
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| Pinnularia polyonca var. nipponica Skvortzow 1936 |
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| Pinnularia striatula Skvortzow 1936 |
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| Pinnularia undulata var. nipponica Skvortzow 1936 |
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| Stephanodiscus biwensis Skvortzow 1936 |
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| Surirella gracilis f. curvata Skvortzow 1936 |
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| Surirella robusta var. nipponica Skvortzow 1936 |
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| Surirella tenera var. nipponica Skvortzow 1936 |
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