Phyllopharyngea: Cyrtophorida: Chlamydodontina: Chilodonellidae

Chilodonella cucullulus
(Müller, 1786) Kahl, 1931
Synonyms: Colpoda cucullulus, Müller, 1786, Chilodon cucullulus Calkins, 1902

Family: Anterior preoral kinetal arcs of all, body tapers at forward end.
Genus (Strand, 1928): body ovoid, with pre-oral suture skewed left to a point; ventrally flattened, dorsally convex (How to know the protozoa, 1979). With distinct postoral ? beak or unciliated field in ventral body cilia; preoral kinety complete (Illustrated Guide, 1985).

Species: Nineteen to twenty ventral ciliary rows; oral basket with about twelve rods (nematodesmata) and with three preoral membranes; macronucleus oval, a characteristic concentric structure; micronuleus small; body 100-300 μm long (Kudo, 1966). 130-150 μm long (How to know the protozoa, 1979). 45 μm long, numerous contractile vacuoles (Carey, 1992).

Chilodonella ??, x 400, x 640, Uruguay Nov. 1999, photo by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400 : scale 31 μm scale 63 μm scale 94 μm; x 640

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