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Heliozoea: Actinophryida

Actinosphaerium sp.
Stein, 1857

Actinosphaerium 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).

A cells of Trithigmostoma trapped by axopodia of Actinosphaerium sp. (Echinosphaerium), x 400, Japan, 1998 by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400

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