Bacillariophyceae
: Pennales:
Araphidineae
: Diatomaceae
Synedra
acus
Kützing
Genus:
Species:
Synedra
sp. or
Navicula
?, cell body
52
μm long,
5
μm wide, x 400, Japan, 1997 by Y. Tsukii
50 μm
100 μm
150 μm; x 400
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