Unidentified sp.
 
Genus: 
 
Species: 
 | 
xxxx, 
test 110 μm in diam., pseudostome 55 μm in diam., 
x 400, x 640, Riverside green land (near Tone river), Sawara city, Chiba Pref., Japan, October 11, 2004 by Y. Tsukii
 50 μm
 100 μm
 150 μm; x 400
 31 μm
 63 μm
 94 μm; x 640
xxxx, 
test 114 μm in diam., pseudostome 55 μm in diam., 
x 400, x 640, Riverside green land (near Tone river), Sawara city, Chiba Pref., Japan, October 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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