Fragilaria sp.
Lyngbye 1819
Genus:
Species:
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Fragilaria sp. ?,
cell body 38 μm long, 4 μm wide,
x 640, Tama river, Fuchu city, Tokyo, March 10, 2004 by Y. Tsukii
31 μm
63 μm
94 μm; x 640
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