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Cercomonadida:

Cercomonas sp.
Dujardin (= Cercobodo Krassilotschick)

Cercomonas Genus: Biflagellate, both arising from anterior end; one directed anteriorly and the other runs backward over body surface as a trailing (recurrent) flagellum; body plastic (Kudo, 1966). Small (10-15 μm); body is generally pyriform to cylindrical except for an ameboid variable posterior (Illustrated Guide, 1985).
Species:

Cercomonas sp. ?, cell body spindle-shaped, 10 μm long, 4 μm wide, anterior flagellum 8 μm long, recurrent flagellum about 17 μm long ?, a contractile vacuole present at the base of anterior flagellum, x 640, rice field, Tennoh, Tessei-cho, Okayama Pref., Japan, November 22, 2004 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Cercomonas Cercomonas Cercomonas

Cercomonas longicauda Dujardin: Cell body pyriform or ovoid, 18-36 μm long, 9-14 μm wide; posterior end drawn out; flagella as long as body; pseudopodia present; fresh water and coprozoic (Kudo, 1966).

Cercomonas crassicauda Dujardin: Cell body 10-16 μm long, 7-10 μm wide; fresh water and coprozoic (Kudo, 1966).

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