Bacillariophyceae: 
Pennales: Raphidineae: Naviculaceae
Amphipleura sp.
Kützing 1844
 
Genus: 
 
Species: 
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Amphipleura Kützing (A. lindheimeri Grunow ?), 
cell body 210 μm long, 22 μm wide, 
x 640, a small pond near Shin-Akitsu railway station, Higashi-Murayama city, Tokyo, Japan, February 11, 2004 by Y. Tsukii
 
 50 μm
 100 μm
 150 μm; x 400 : 
 31 μm
 63 μm
 94 μm; x 640
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