Genus: Spheroid, with a single flagellum and radiating pseudopods; ordinary attached to foreign
object with a cytoplasmic process, but swim freely by withdrawing it; nucleus central;
several contractile vacuoles (Kudo, 1966).
Species:
Actinomonas sp., very thin radiating pseudopods present (indistinguishable on photo microscopy),
x 400, x 640, Japan, 1998 by Y. Tsukii
50 μm
100 μm
150 μm; x 400 :
31 μm
63 μm
94 μm; x 640
a dividinn cell ?, thin radiating pseudopods present
A. mirabilis Kent: Numerous filopodia; about 10 μm
diam., flagellum 20 μm long; fresh water
(Kudo, 1966).