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).
P. trichophorum
large variety
5 clips
cell 100 x 20 μm
Japan, 1998
P. trichophorum
excystment
3 clips
cell 50 μm
Japan, 1999
P. trichophorum
3 clips
cell 50 μm
Japan, 1998
Peranema sp.1
small variety
5 clips
cell 31 x 11 μm
Japan, 1998