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Prostomatea: Prorodontida: Prorodontidae

 Prorodon sp.
Ehrenberg, 1833

Prorodon Genus: Ovoid to cylindrical; ciliation uniform; oral basket made up of double trichites which end up deep in ectoplasm; contractile vacuole terminal (Kudo, 1966). Brosse as 3 longitudinal files (Illustrated Guide, 1985). Body ellipsoidal, ovoid or cylindrical in shape; cytostome apical, circular; cytopharynx equipped with well-developed double nematodesmata; somatic ciliation uniform, kinetosomes paired; macronucleus ovoid, reniform or ellongate; as many species descriptions are insufficient, many are indistinguishable (Carey, 1992).
Species:

Prorodon sp., cell body 356 μm long, 155 μm wide, L/W=2.3, x 200, x 400, x 640, No.6, Mizunashi-Yachi, Komado marsh (No.13), Showa village and Tajima town, Fukushima Pref., Japan, May 21, 2007, by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400 : scale 31 μm scale 63 μm scale 94 μm; x 640
Prorodon Prorodon
x 640
Prorodon Prorodon Prorodon Prorodon Prorodon

Images of collecting locality: No.6, Mizunashi-Yachi, Komado marsh (No.13), Showa village and Tajima town, Fukushima Pref., Japan, May 21, 2007, by Y. Tsukii

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