 
 Navicula sp.
Navicula sp.
Bory 1822
|  Genus: Species:
 | 
Navicula sp. (or Nitzschia ?), 
cell body 20 μm long, 8 μm wide, 
x 640, Kawagoe, Saitama Pref., Japan, May 2001 by Y. Tsukii
 31 μm
 31 μm
 63 μm
 63 μm
 94 μm; x 640
 94 μm; x 640
 
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