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Brachysira brebissonii form thermalis
Form, Diatom
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Brachysira zellensis form difficilis
Form, Diatom
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Caloneis silicula form peisonis
Form, Diatom
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Cavinula cocconeiformis form parva
Form, Diatom
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Craticula halophila form robusta
Form, Diatom
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Craticula halophila form tenuirostris
Form, Diatom
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Diatomella balfouriana form constricta
Form, Diatom
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Diploneis subconstricta fo. alpina
Form, Diatom
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Frustulia rhomboides fo. capitata
Form, Diatom
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Frustulia rhomboides form undulata
Form, Diatom
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Frustulia rhomboides var. saxonica fo. undulata
Form, Diatom
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Luticola mutica form gibbosa
Form, Diatom
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Luticola mutica form intermedia
Form, Diatom
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Navicula approximata form morei
Form, Diatom
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Navicula cocconeiformis form parva
Form, Diatom
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Navicula cryptocephala form terrestris
Form, Diatom
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Navicula digitoradiata form linearis
Form, Diatom
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Navicula latissima f. latissima
Form, Diatom, Marine
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Navicula mutica form gibbosa
Form, Diatom
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Navicula mutica form intermedia
Form, Diatom