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Heterotrichea: Heterotrichida: Stentoridae

Stentor polymorphus
(Müller 1773) Ehrenberg, 1830

Stentor polymorphus Species: Colorless; with symbiotic Chlorella; 1-2 mm long when extended; macronucleus beaded; anterior end expanded (Kudo, 1966). Elongate, may attain 1-2 mm; peristome wide; macronucleus moniliform; no somatic bristles; colourless but zoochlorellae may be present (Carey, 1992).
Cell body slenderly trumpet shaped, up to 2 mm long when fully extended; macronucleus moniliform (more than 10 connected beads); cortical granules colourless; with symbiotic green algae (Foissner and Wölfl, 1994).


Stentor polymorphus (?), cell body about 1120 μm long, peristome about 160 μm wide, macronuclei moniliform, x 100, x 200, x 400, x 640, Hannoki numa (pond), Aizu Recreation Park, Aizuwakamatsu city, Fukushima Pref., Japan, May 4, 2005 by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400 : scale 31 μm scale 63 μm scale 94 μm; x 640
Stentor Stentor Stentor Stentor Stentor Stentor Stentor Stentor


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