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Colpodea: Colpodida: Colpodidae

 Colpoda sp.
Müller, 1773

Colpoda Genus: Body reniform; dorsoventrally flattened; right body edge convex, left concave; somatic groove originates on the dorsal surface, travels around the left side to the entrace of the vestibulum on the ventral surface (Carey, 1992). Oral cavity not tubular (Illustrated Guide, 1985).
Species: Cell body 50 μm long (Kahl, 1930).

Colpoda sp. (maupasi ?), cell body 53 μm long, 31 μm wide, L/W=1.7, x 640, Kumakubo, Nasu-shiobara city (formerly Kuroiso city), Tochigi Pref., Japan, December, 2005, collected by Eizaburo Tsukii, photo by Y. Tsukii
scale 31 μm scale 63 μm scale 94 μm; x 640
Colpoda Colpoda

C. maupasi Enriques, 1908: 35-80 μm long; 20-50 μm wide; resting cysts 21-28 μm diam. (Foissner, Blatterer, Berger & Kohmann, 1991).
C. aspera Kahl, 1926: 30-40 μm long; reproductive cysts with 4 tomites (Foissner, Blatterer, Berger & Kohmann, 1991).
C. steinii Maupas, 1883: Renifrom; cytostomial cleft 1/3 of the body length from the anterior end; 15-42 μm long; smatic ciliation in 10 rows; 2 caudal cilia; vestibulum equipped with a beard of 'pseudomembranelles' arising from posterior margin; a macronucleus ovoid (Carey, 1992). 20-40 μm long; 15-30 μm wide; but size is quite variable (Foissner, Blatterer, Berger & Kohmann, 1991). 15-40 μm; two long posterior cilia (How to know the protozoa, 1979).
C. ecaudata (Liebmann, 1936): 20-40 μm long (Foissner, Blatterer, Berger & Kohmann, 1991).
C. edaphoni Foissner, 1980: 25-40 μm long; 12-16 μm wide (Foissner, Blatterer, Berger & Kohmann, 1991).
C. ellioti Bradbury & Outka, 1967: 15-35 μm long; 7-18 μm wide (Foissner, Blatterer, Berger & Kohmann, 1991).

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