 
 
Bacillariophyceae: 
Pennales: Raphidineae: Naviculaceae
Navicula sp.
Bory 1822
|  Genus: Species:
 | 
Navicula sp. ??, 
cell body 29 μm long, 9 μm wide, 
x 400, x 640, Uruguay, November 1999, photo by Y. tsukii
 50 μm
 50 μm
 100 μm
 100 μm
 150 μm; x 400 :
 150 μm; x 400 : 
 31 μm
 31 μm
 63 μm
 63 μm
 94 μm; x 640
 94 μm; x 640
 
 
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