Unidentified sp.
 
Genus: 
 
Species: 
 | 
Unidentified sp., outline shape similar to 
Euglena mutabilis, 
cell body plastic, about 103 μm long, 7 μm wide, 
x 640, Shiba river, near Owada Park, Saitama city, Saitama Pref., Japan, April 3, 2005 by Y. Tsukii
 31 μm
 63 μm
 94 μm; x 640
Cell body plastic, about 90 μm long, 7 μm wide, x 640
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