 
 
Arthropoda: Crustacea: Branchiopoda: Cladocera: Chydoridae
Alona sp.
|  Genus: Species:
 | 
Alona sp. (A. rectangula ?) (Subfamily Aloninae, Family Chydoridae, Order Cladocera, Subclass Bfranchiopoda), 
body  μm long,  μm wide, L/W=, 
x 200, x 400, x 640, Kisuge konuma (a small pond near Mikura mountain 1888 h), Shimogo town, Fukushima Pref. (boundary at Nasu-shiobara city, Tochigi Pref.), Japan, August 29, 2005, collected by Eizaburo Tsukii, photo by Y. Tsukii
 50 μm
 50 μm
 100 μm
 100 μm
 150 μm; x 400
 150 μm; x 400
 
 
 
x 640
 
 
 
 
x 400, x 640
 
 
 
 
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