Genus: Body blunt at rear; kineties spiralled when body contracts (Illustrated Guide, 1985).
Species: 1-3 mm long (without expansion or attenuation); peristome 2/3 body length; macronucleus moniliform; size and the length of the peristome separate this species from S. intermedium (600 μm long , peristome1/2 the body length) (Carey, 1992). |
200 μm
400 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
Spirostomum ambiguum,
cell body slightly contracted, 420 μm long, 34, 56 μm wide,
peristome μm long (? of the body length), macronuclei moniliform,
x 100, x 200, x 400, x 640, Kanayama green park, Kiyose city, Tokyo, Japan, August 2001 by Y. Tsukii
200 μm
400 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
