Suborder: With organelle of Lieberkühn (watch-glass organelle). Family & Genus: Oral apparatus of trophont complex with rear of polykinetid 2 enlarged; histophagous on dying or dead invertebrates (Illustrated Guide, 1985). Genus: Cytostome anterior ventral and spirals down into the body; watch-glass body with a pigment spot on the left of the cytostome (Carey, 1992). Species: Cell body pyriform, elongate, 250-500 μm long; oral area small; the pigment spot not conspicuous; macronucleus ellipsoidal; two contractile vacuoles; many trichocysts (Carey, 1992).

50 μm 100 μm 150 μm; x 400 : 31 μm 63 μm 94 μm; x 640