Genus: Elongate, with a broad rounded or truncate posterior end during locomotion; highly plastic;
delicate pellicle shows a fine striation; a free flagellum, long and conspicuous, tapers toward free
end; a second flagellum adheres to the pellicle; a contractile vacuole, anterior, close to the reservoir
(Kudo, 1966).
Species:
Peranema sp. (trichophorum large variety ?),
cell body 90 μm long, 20 μm wide, L/W=4.5,
flagellum about 50 μm long ?,
x 640, No.2, Kannon-numa Forest Park (pond), Shimogo town, Fukushima Pref., Japan, November 15, 2008, by Y. Tsukii 50 μm
100 μm
150 μm; x 400
Images of collecting locality:
No.2, Kannon-numa Forest Park (pond), Shimogo town, Fukushima Pref., Japan, November 15, 2008, by Y. Tsukii