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Oligohymenophorea: Hymenostomatia: Hymenostomatida: Tetrahymenidae

Tetrahymena sp.
Furgason, 1940

Genus: Oral polykinetids straight, never sigmoid (Illustrated Guide, 1985). Small, ovoid or pyriform, anterior pointed; cytostome anterior 1/3 of body where an undulating membrane on the right and three small membranelles on the left; macrostome forms with large buccal ciliation; somatic ciliation complete; a contractile vacuole terminal; a spherical macronucleus central (Carey, 1992).
Species:


Tetrahymena sp., intact cells, axenic culture, cell body μm long, μm wide, x 1000, Japan, 199? by Y. Tsukii
scale 20 μm scale 40 μm scale 60 μm; x 1000
Tetrahymena Tetrahymena


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