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Heterotrichea: Heterotrichida: Stentoridae

Stentor pyriformis
Johnson 1893

Stentor 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 pyriformis Johnson 1893, with endosymbiotic algae, cell body μm long, μm wide, L/W=, x 640, No.2, Kuroyachi marsh, Hachimantai, Hachimantai city, Iwate Pref., Japan, August 23, 2007 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

Images of collecting locality: No.2, Kuroyachi marsh, Hachimantai, Hachimantai city, Iwate Pref., Japan, August 23, 2007 by Y. Tsukii


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