Family:
Genus:
(Illustrations of The Japanese Fresh-water Algae, 1977).
Species:
Similar genus -->> Tetraedriella;
Tetraedron;
Tetraplektron torsum (Skuja) Dedusenko Scegoleva,
cell body 39 μm long between projections,
x 640, Shikinawa-ike (pond, near Kayoicho Park), Kasuya town, Fukuoka Pref., Japan, October 2001 by Y. Tsukii 31 μm
63 μm
94 μm; x 640
Family:
31 μm
