Genus: Two flagella of equal length inserted close together into an anterior papilla of variable shape usually directed anteriorly; chloroplast form variable; usually 2 contractile vacuoles; cell division producing 2-8 zoospores; sexual reproduction usually isogamous, anisogamy and oogamy known but rare; > 500 species, mostly fresh water (Illustrated Guide, 1985). A large chloroplast; stigma; a single nucleus; two contractile vacuoles anterior (Kudo, 1966).

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Pseudagloë: Chloroplast centrally located, concaved at both ends; pyrenoid central; nucleus anterior
C. biciliata ? 5 samples 9-15 μm 2000-2005	Chlamydomonas sp. 15 x 8 μm st. present Tachikawa Tokyo, 2004	C. mutabilis 9 samples 18-31 μm s: anterior 2003-2006	Chlamydomonas sp. ? μm Torinome Kasen p. Kuroiso Tochigi, 2004
Chlamydomonas sp. ? μm s: xxxx Kodaira Central Park Tokyo, 2003	C. christensenii ? 23 x 18 μm s: anterior papilla present Showa-machi G.P. Showa Saitama, 2003	Chlamydomonas ? 10-15 x 8-14 μm s: xxxx Fujioka Tochigi, 2001	Chlamydomonas ? 12 x 10 μm s: xxxx Ishibashi Tochigi, 2001

Similar genus -> Chloromonas; Chlorococcum;

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