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Bacillariophyceae: Pennales: Raphidineae: Naviculaceae

 Gyrosigma sp.
Hassall 1845

Gyrosigma Genus:
Species:

Gyrosigma sp. or Pleurosigma sp., cell body μm long, μm wide, x 640, Doman-green Park, Nishi-Urawa, Saitama Pref., Japan, February 2003 by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400 : scale 31 μm scale 63 μm scale 94 μm; x 640
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