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Heterotrichea: Heterotrichida: Stentoridae

 Stentor igneus
Ehrenberg

Stentor igneus Genus: When extended, trumpet-shaped or cylindrical; highly contractile; some with mucilaginous lorica; conspicuous peristomal field frontal; contractile vacuole anterior-left; fresh water (Kudo, 1966).
Species: Rose-colored or colorless; 200-400 μm long; macronucleus oval; ciliation uniform (Kudo, 1966).

Stentor igneus Ehrenberg, cell body 380 μm long, 70 μm wide, x 200, x 400, x 640, Hakama marsh (or bog), Madarao highland (Niigata & Nagano Pref.), Myoko village, Niigata Pref., Japan, May 15, 2005 by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400
Stentor igneus Stentor igneus Stentor igneus Stentor igneus
Cell body 380 μm long, 65 μm wide, x 200, x 400, x 640
Stentor igneus Stentor igneus Stentor igneus Stentor igneus

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