Species:
Cell body broadly trumpet shaped, up to 700 μm long when fully extended;
macronucleus consists of two (rarely one, three, four or five) isolated beads;
cortical granules colourless; with symbiotic green algae
(Foissner and Wölfl, 1994).
Stentor pyriformis Johnson 1893, with endosymbiotic algae,
cell body 230 μm long, 125 μm wide, L/W=1.8,
x 200, x 400, x 640, Tashirodaira marsh, Hakkoda mountain, Aomori city, Aomori Pref., Japan, July 17, 2005 by Y. Tsukii
200 μm
400 μm
600 μm; x 100