Species: Cell body broad ellipsoidal or nearly spherical, 17-24 μm long, 15-24 μm wide; chloroplast cup-shaped with a large concavity; papilla present, broad with flattend apex; a pyrenoid anterio-posteriorly depressed, located at posterior half of the cell body; nucleus at anterior (Süßwasserflora von Mitteleuropa 9, Chlorophyta I, 1983).

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C. heterogama 20 μm φ Ishibashi Tochigi, 2004

C. heterogama ? 27 μm φ s: present ? Kami-muneoka Shiki Saitama, 2004

C. heterogama ? 20 μm φ s: absent ? Takahagi Hidaka Saitama, 2003

C. heterogama ? 18 μm φ s: absent ? Iida-shinden Nishi-ku Saitama, 2004

Similar genus -> Chloromonas; Chlorococcum;

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