Family: Anterior preoral kinetal arcs of all, body tapers at forward end (Illustrated Guide, 1985). Thigmotactic zone broad but no specialized adhesive area; cell body broad and flattened dorsoventrally; broad lobe projects to the left of the body; no isolated rows of somatic ciliature (Carey, 1992).
Genus: Cell 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). Dorsal surface lacks bristles (cf. with bristles Trithigmostoma) ; central zone devoid of cilia (Carey, 1992).

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C. cucullulus 150 μm 17 ciliary rows Japan, 199?	C. cucullulus 110 μm Japan, 199?	C. cucullulus 127 μm, x 640 18 ? ciliary rows Kurihashi Saitama, 2001	C. cucullulus 105 μm, x 640 ingesting food Uruguay, 1999
Chilodonella sp. 76 μm, x 640 Japan, 1998	C. bavariensis ? 63 μm Gumma, 2001	Chilodonella ? μm Iwatsuki Saitama, 2002	Chilodonella ? μm Higashi-Matsuyama Saitama, 2002
C. calkinsi ? 53-59 μm Japan, 1997	C. aplanata ? 55 μm Japan, 1997	C. capucina ? 50, 55 μm Japan, 1997	C. capucina ? 44-55 μm Japan, 199?
C. capucina ? 49 x 27 μm Saitama, 1999	C. capucina ? 46 x 23 μm cojugating pair Japan, 1998	C. capucina ? 43 x 21 μm near Ukima Park Tokyo, 2001	C. capucina ? 44 x 24 μm Japan, 1998
C. capucina ? 44 x 24 μm Japan, 1998	C. capucina cell μm Japan, 1998	C. capucina cell μm Japan, 1998	C. capucina ? cell μm Japan, 1998
Chilodonella sp. 34 x 20 μm Uruguay, 1999	Chilodonella sp. μm Otto-Numa Tsuchiura Ibaraki, 2002	Chilodonella sp. 31 x 20 μm Tochigi, 2001	Chilodonella sp. 28 x 15 μm Japan, 1998
Chilodonella sp. 32 x 20 μm Sagiyama m.p. Saitama Saitama, 2005

Similar Genus ->> Trithigmostoma; Chilodontopsis

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