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Oligohymenophorea: Hymenostomatia: Hymenostomatida: Tetrahymenidae

Tetrahymena sp.
Furgason, 1940

Tetrahymena 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. ?, cell body 78 μm long, 35 μm wide, L/W=2.2, x 640, drainage ditch, Tanadare-fureai-no-mori (& Center for Environmental Science), Kisai town, Saitama Pref., Japan, March 11, 2006 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Tetrahymena Tetrahymena

Images of collecting locality: Drainage ditch, Tanadare-fureai-no-mori (& Center for Environmental Science), Kisai town, Saitama Pref., Japan, March 11, 2006 by Y. Tsukii


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