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
200 μm
400 μm
600 μm; x 100
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