 
 
Chlorophyceae: 
Chlorococcales: Scenedesmaceae
Unidentified sp.
|  Genus: Species:
 | 
Scenedesmus asymmetricus (Schroeder) Chodat (by G.E. Dillard, 1989) 
or Scenedesmus heimii Bourrelly 1950 or similar species ?, 
cell body swelled at the center, 18 μm long, 5 μm wide, both ends rounded, 
outer cells with two spines at both ends, additional spines emerging from the center of the cell body, 
perpendicular to the plane of colony, 
x 640, Omine-numa (pond/marsh), Tsukiyono town, Gunma Pref., Japan, September 2003 by Y. Tsukii
 31 μm
 31 μm
 63 μm
 63 μm
 94 μm; x 640
 94 μm; x 640
 
 
 
 
 
 
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