Family: Ventral body kineties run from right ventral body surface to dorsal right and anterior left surfaces; local region of thigmotactic cilia at rear of ventrum.
Genus: Ellipsoid, anterior third bent to left; ventral surface flat; dorsal surface with hump; oval cytostome at anterior end; no cytopharynx; two macronuclei; one micronucleus; two contractile vacuoles (Kudo, 1966).
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Cryptopharynx sp.
22 x 13 μm
Saitama, 1998
Cryptopharynx ?
34 x 18 μm
Ishibashi
Tochigi, 2003
