Genus: Cell body asymmetrical, elongated, slightly curved; cytostome on an oval apical plate but not
centrally; nematodesmata of cytopharyngeal apparatus conspicuous; dorsal brush present;
macronucleus usually elongate or moniliform; cell body uniformly ciliated;
peribuccal trichocysts and small toxicysts present throughout the cytoplasm;
a contractile vacuole terminal and may have satellite vacuoles
(Carey, 1992).
Species:
Cell body like an elogate cylinder; buccal plateau distinct
(Carey, 1992).
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