(formerly Heliozoea: Ciliophryida)
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).
Actinomonas sp., very thin radiating pseudopods present (indistinguishable on photo microscopy),
x 400, x 640, Japan, 1998 by Y. Tsukii
150 μm; x 400 :
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
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