Gamophyceae: 
Zygnematales: Desmidiaceae
(Chlorophyceae: Zygnematales: Gonatozygaceae or Mesotaeniaceae)
Mesotaenium sp.
 
Genus: Cell body ellipsoidal or short cylindrical; chloroplasts plate-like 
(Illustrations of The Japanese Fresh-water Algae, 1977) .
 
Species: 
 | 
Mesotaenium sp., 
cell body  μm long,  μm wide, L/W=, 
x 640, No.3, Shijuhachi-ike (pond), Shiga highland, Yamanouchi town, Nagano Pref., Japan, July 20, 2008 by Y. Tsukii
 31 μm
 63 μm
 94 μm; x 640
Images of collecting locality: 
No.3, Shijuhachi-ike (pond), Shiga highland, Yamanouchi town, Nagano Pref., Japan, July 20, 2008 by Y. Tsukii
Please click on images for viewing enlarged.
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