 
 Navicula sp.
Navicula sp.
Bory 1822
|  Genus: Species:
 | 
Navicula sp. (N. pusilla or Cymbella cuspidata ?), 
cell body 71 μm long, 23 μm wide, 
x 400, x 640, Uruguay, November 1999, photo by Y. tsukii
 31 μm
 31 μm
 63 μm
 63 μm
 94 μm; x 640
 94 μm; x 640
 
 
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