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Heterotrichea: Heterotrichida: Spirostomatidae

Spirostomum teres
Claparède & Lachmann, 1859

Spirostomum teres Genus: Body blunt at rear; kineties spiralled when body contracts (Illustrated Guide, 1985).
Species: 300 μm long; no expansion or attenuation of the body (?); peristome 1/2 body length; simple ovoid macronucleus; (Carey, 1992). 150-400 μm long; with one, oval macronucleus (How to know the protozoa, 1979).


Spirostomum teres, cell body 500 μm long, 44 μm wide, peristome 200 μm long (2/5 of the body length), a single elongated ellipsoidal (or rod-shaped ?) macronucleus, x 400, x 640, Japan, April 1999, by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400
Spirostomum teres
scale 31 μm scale 63 μm scale 94 μm; x 640
Spirostomum teres

Cell division, x 200, x 400, x 640
scale 50 μm scale 100 μm scale 150 μm; x 400 : scale 31 μm scale 63 μm scale 94 μm; x 640
Spirostomum teres Spirostomum teres Spirostomum teres Spirostomum teres Spirostomum teres Spirostomum teres Spirostomum teres Spirostomum teres Spirostomum teres Spirostomum teres Spirostomum teres Spirostomum teres Spirostomum teres


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