image_list image_listE

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., silver stained, cell body 65-75 μm long, 34-44 μm wide, x 400, Japan, 199? by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400
Tetrahymena Tetrahymena Tetrahymena Tetrahymena


Please click on images for viewing enlarged.
Copyright Protist Information Server