Family:
Genus:
(Illustrations of The Japanese Fresh-water Algae, 1977).
Species:
Similar genus -->> Tetraedriella;
Tetraedron;
Tetraplektron torsum or similar species (?),
cell body 30 μm long, μm wide, L/W=,
x 640, Yakebe-ike (pond), Sayama park, Higashi-Murayama city, Tokyo, Japan, February 11, 2006 by Y. Tsukii 31 μm
63 μm
94 μm; x 640
Family:
31 μm
