Genus: Ectoplasm consists of large vacuoles in one or several layres; endoplasm with numerous small
vacuoles; numerous nuclei; axopodia end in the inner zone of ectoplasm (Kudo, 1966).
Species:
Cell body spherical, 200-1000 μm in diam.;
ectoplasm vacuolated; endoplasm containing both granules and small vacuoles;
several contractile vacuoles present; many nuclei located at the perphery of endoplasm.
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