 
 
|  Family: Test usually more or less compressed; pseudostome narrowly oval or slit-like. Genus: Test more or less flask-shaped, with more or less neck (Illustrated Guide, 1985). Species: | 
 31 μm
 31 μm
 63 μm
 63 μm
 94 μm; x 640
 94 μm; x 640
 
 
 
 
Images of collecting locality: 
No. 2, Jodo-daira (bog or marsh) , Azuma mountain, Fukushima city, Fukushima Pref., Japan, September 3, 2006 by Y. Tsukii
 
 
