Diatom Image Database   Click on an image to see a larger version
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Neidium affine (Ehrenberg) PfitzerNeidium affine (Ehrenberg) PfitzerNeidium affine (Ehrenberg) PfitzerNeidium affine (Ehrenberg) Pfitzer
Neidium affine (Ehrenberg) PfitzerNeidium affine var. amphirhynchus (Ehrenberg) CleveNeidium affine var. amphirhynchus (Ehrenberg) CleveNeidium affine var. amphirhynchus (Ehrenberg) Cleve