 
 
|  Genus: Pseudostome lacks lobed collar; test round or oval in cross-section; pseudostome relatively large, 
with or lacking a collar (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.5, Omine-numa (pond/marsh), Minakami town (formerly Tsukiyono town), Gunma Pref., Japan, October 12, 2008 by Y. Tsukii
 
 
