Genus: Postoral kineties usually to left of oral poykinetids (Illustrated Guide, 1985).
Left edge is more curved than right edge; cytopharynx with numerous strong fibrils; ectoplasm with
numerous fusiform trichocysts; macronucleus oval; one to several micronulei (Kudo, 1966).
Species: Anterior wider than the posterior,
200-300 μm long; cytostome small & elongate;
preoral suture distinctive; an elongate macronucleus; large contractile vacuole;
many small trichocysts (Carey, 1992).
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