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Oligohymenophorea: Hymenostomatia: Scuticociliatida: Philasterina: Uronematidae

Cyclidium sp.
Müller, 1786

Cyclidium Genus: Small, 15-60 μm long; with a caudal cilium; on the right edge of peristome occurs a membrane which forms a pocket around cytostomal groove; contractile vacuole posterior (Kudo, 1966). Ovoid body with flattened anterior cap; long peristome with large, undulatory membrane, extended in feeding, one long caudal cilium (How to know the protozoa, 1979). No somatic cilia at the anterior apex; no cilia around the posterior where a single, long caudal cilium usually merges; buccal ciliature proportionally smaller in comparison to Pleuronema (Carey, 1992).
Similar Genus ->> Uronema; Pleuronema

Cyclidium glaucoma, cell body 21 μm long, 10 μm wide, body cilia 8 μm long, caudal cilia 15 μm long, x 640, drainage ditch near Gunma Prefectural Livestock Experiment Station (Chikusan-shikenjo), Kogure, Fujimi village, Gunma Pref., Japan, April 30, 2005 by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Cyclidium Cyclidium

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