 
 
Bacillariophyceae: 
Pennales: Raphidineae: Naviculaceae
Pinnularia sp.
Ehrenberg 1843
|  Genus: Species:
 | 
Pinnularia sp., 
cell body 85 μm long, 20 μm wide, 
x 640, a small pond at Kusatsu Onsen bus terminal, Kusatsu town, Gunma Pref., Japan, June 5, 2005 by Y. Tsukii
 31 μm
 31 μm
 63 μm
 63 μm
 94 μm; x 640
 94 μm; x 640
 
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