Nitzschia sigmoidea
(Nitzsch) W. Smith 1853
Genus:
Species:
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Nitzschia sigmoidea,
cell body 300 μm long, 21 μm wide,
x 400, x 640, Japan, 1998 by Y. Tsukii
50 μm
100 μm
150 μm; x 400
31 μm
63 μm
94 μm; x 640
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