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Heterotrichea: Heterotrichida: Spirostomatidae

 Spirostomum

Genus: Body blunt at rear; kineties spiralled when body contracts (Illustrated Guide, 1985).@
Species:

Spirostomum sp., cell body μm long, μm wide, x 100 & x 200 ?, Japan, 199? by Y. Tsukii
scale 200 μm scale 400 μm scale 600 μm; x 100
Spirostomum Spirostomum

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