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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 μm long, μm wide, L/W=, x 640, No.1, Near Omine-numa (pond/marsh), Omine, Minakami town (formerly Tsukiyono town), Gunma Pref., Japan, October 12, 2008 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Stentor igneus Stentor igneus Stentor igneus Stentor igneus Stentor igneus

Images of collecting locality: No.2, Near Omine-numa (pond/marsh), Omine, Minakami town (formerly Tsukiyono town), Gunma Pref., Japan, October 12, 2008 by Y. Tsukii

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