Genus: Similar to Chlamydomonas, but pyrenoids absent.
Species: Cell body ellipsoidal or nearly spherical, 19-31 μm long, 14-24 μm wide; a small dome-like papilla present; chloroplast(s) grooved at periphery showing tile-like structure; "watch glass" like stigma near anterior end; nucleus centrally located (Süßwasserflora von Mitteleuropa 9, Chlorophyta I, 1983).
Chloromonas maculata Korschikoff (Syn: Chamydomonas korschkoffii Pascher): Cell body spherical, 15-26 μm in diam.; 2 flagella approximately equal to cell-body length; papilla small, flat in shape; many chloroplast small plate-like, without pyrenoids; stigma elliptical; 2 contractile vacuoles at the base of flagella; nucleus located at the center of the cell body (Photomicrographs of the Freshwater Algae, vol. 17, 1996).