 
 
Heterotrichea: 
Heterotrichida: Stentoridae
Stentor pyriformis
Johnson 1893
|  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  μm long,  μm wide, L/W=, 
x 640, No.2, Yokotashiro, Oze-ga-hara (Oze marsh), Katashina village, Gunma Pref., Japan, October 6, 2007 by Y. Tsukii
 50 μm
 50 μm
 100 μm
 100 μm
 150 μm; x 400 :
 150 μm; x 400 : 
 31 μm
 31 μm
 63 μm
 63 μm
 94 μm; x 640
 94 μm; x 640
 
 
 
Images of collecting locality: 
No.2, Yokotashiro, Oze-ga-hara (Oze marsh), Katashina village, Gunma Pref., Japan, October 6, 2007 by Y. Tsukii
 
 
 
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