Protozoa Guide review

Spirostomum

genus / HETEROTRICHIDA / SPIROSTOMIDAE

Description

Body blunt at posterior; somatic kineties spiralled when body contracts ; oral region usually at least 1/2 body length; oral infundibulum shallow ; incomplete somatic kineties insert on p right of oral region ; with huge non-contractile vacuole in posterior that is evacuated by cell contraction (Fig. 13) .

Type species

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Raw text

Body blunt at posterior; somatic kineties
spiralled when body contracts ; oral region usually
at least 1/2 body length; oral infundibulum
shallow ; incomplete somatic kineties insert on p
right of oral region ; with huge non-contractile
vacuole in posterior that is evacuated by cell
contraction (Fig. 13) .