 
 
|  Genus: Cells arranged three-dimentionally; cell body spherical or triangular pyramid in shape 
(Illustrations of The Japanese Fresh-water Algae, 1977). Species: | 
 31 μm
 31 μm
 63 μm
 63 μm
 94 μm; x 640
 94 μm; x 640
 
 
Images of collecting locality: 
Kashiwa Village Mizube Park, Kashiwa city, Chiba Pref., Japan, February 11, 2008 by Y. Tsukii
 
 
