 
 
|  Genus: Test variable, chitinoid; binucleate (Illustrated Guide, 1985). Group: Discoides (Test flattened; height < 1/2 greatest diam.) Species: | 
 31 μm
 31 μm
 63 μm
 63 μm
 94 μm; x 640
 94 μm; x 640
 
 
 
 
 
Images of collecting locality: 
near Lake Aoki, Omachi city, Nagano Pref., Japan, May 8, 2006 by Y. Tsukii
 
 
