Heterotrichea
: Heterotrichida: Spirostomatidae
Spirostomum
minus
Roux
Genus: Body blunt at rear; kineties
spiralled
when body contracts (Illustrated Guide, 1985).@
Species:
500-600
μm long; with slender, tapered "tail" (How to know the protozoa, 1979).
500-800
μm long; macronucleus moniliform (Kudo, 1966).
Spirostomum minus
, cell body
780
μm long,
34
μm wide, peristome
214
μm long (about 1/3 body length), macronucleus
moniliform
, x 100, x 200, x 400, x 640, Vermont-Maine U.S.A., August 7-13, 1999, by Y. Tsukii
200 μm
300 μm
600 μm; x 100
100 μm
200 μm
300 μm; x 200
50 μm
100 μm
150 μm; x 400
31 μm
63 μm
94 μm; x 640
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