 
 Amphora sp.
Amphora sp.
Ehrenberg ex Kützing 1844
|  Genus: Species:
 | 
Amphora sp. (left) & Fragilaria sp. (right; Araphidineae), 
cell body  μm long,  μm wide, 
x 400, Japan, 199? by Naoki Sugiyama
 50 μm
 50 μm
 100 μm
 100 μm
 150 μm; x 400
 150 μm; x 400
 
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