 
 
|  Genus: Species: Test small, brown or rarely colourless, oviform, compressed; trasverse section lenticular; 28-58 μm long, 19-50 μm wide, pseudostome 6-16 μm wide (Cash, 1915). | 
 31 μm
 31 μm
 63 μm
 63 μm
 94 μm; x 640
 94 μm; x 640
 
 
 
Images of collecting locality: 
No.2, Iroha-numa (marsh/bog), Zao mountain, Kaminoyama city & Yamagata city, Yamagata Pref., Japan, July 13, 2008 by Y. Tsukii
 
 
