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| Coscinodiscus radiatus var. oculusiridis (oculus-iridis) (Ehrenberg; Ehrenberg) Van Heurck 1896 |
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| Tetracyclus lacustris var. emarginatus (marginata) (Ehrenberg; Ehrenberg) Van Heurck 1896 |
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| Pleurosigma attenuatum var. scalprum (Gaillon in Turpin) Van Heurck 1896 |
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| Grunoviella (Grunowiella) marina (Gregory) Van Heurck 1896 |
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| Orthotropis lepidoptera (Gregory) Van Heurck 1896 |
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| Orthotropis lepidoptera var. pusilla (Gregory) Van Heurck 1896 |
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| Orthotropis maxima (Gregory) Van Heurck 1896 |
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| Synedra pulchella var. vertebra (vertebrata) (Gregory) Van Heruck 1896 |
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| Tropidoneis lepidoptera var. pusilla (Gregory) Van Heurck 1896 |
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| Coscinodiscus radiatus var. jonesianus (Greville) Van Heurck 1896 |
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| Coscinodiscus radiatus var. jonesianus (jonesiana) (Greville) Van Heurck 1896 |
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| Grammatophora serpentina var. pusilla (Greville) Van Heurck 1896 |
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| Pyxidicula brevis (Greville) Van Heurck 1896 |
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| Biddulphia eulensteinii (Grunow in A. Schmidt) Grunow in Van Heurck 1896 |
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| Leudugeria janischii (Grunow in Cleve & Moller; Grunow in Van Heurck) Van Heurck 1896 |
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| Fragilaria tenuicollis var. intermedia (Grunow in litt.) Van Heurck 1896 |
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| Cymbella laevis var. rupicola (Grunow in Schmidt et al.) Van Heurck 1896 |
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| Biddulphia consimilis (Grunow in Van Heurck) Van Heurck 1896 |
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| Biddulphia laevis f. minor (Grunow in Van Heurck) Van Heurck 1896 |
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| Chaetoceros paradoxus (paradoxum) var. eibenii (Grunow in Van Heurck) Grunow in Van Heurck 1896 |
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