Genus: Body spherical or oval; one or two yellowish-brown chloroplasts
(How to know the protozoa, 1779).
Flagellate often becoming amoeboid or palmelloid; a single external flagellum emerging apically;
second very short flagellum in a pocket detected when examined by electron microscopy;
1 or 2 chloroplasts; eyespot present in some species;
cysts smooth or ornamented; many species with peripheral muciferous bodies;
discobolocysts (a kind of extrusome) in some species;
freshwater or marine (Illustrated Guide, 1985).
Species: 15-20 μm (How to know the protozoa, 1779).
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50 μm
100 μm
150 μm; x 400 :
31 μm
63 μm
94 μm; x 640
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