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Bacillariophyceae: Pennales: Araphidineae: Diatomaceae

 Asterionella sp.
A.H. Hassall 1850

Asterionella Genus:
Species:

Asterionella sp., cell body 22 μm long, 2.5 μm wide, x 640, a pond near Omiya gymnasium, Owada Park, Saitama city, Saitama Pref., Japan, April 3, 2005 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
Asterionella Asterionella Asterionella
Cell body 27 μm long, 3 μm wide, x 640
Asterionella

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