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).
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Other endosymbioses
Stentor pyriformis
Johnson 1893, with endosymbiotic algae, x 100, x 200, Vermont-Maine U.S.A., August 7-13, 1999, by Y. Tsukii
50 μm
100 μm
150 μm; x 400 :
31 μm
63 μm
94 μm; x 640
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