Species: Cell body ovoid, posteriorly rounded, tapered to anterior end, up to 12.5 μm long 4.5 μm wide; papilla absent; cellwall thin; flagella two times longer than cell body; chloroplast cup-shaped, occupying posterior 2/3 of the cell body (i.e., chloroplast absent at anterior 1/3 of the cell body); stigma small, located at the margin of the chloroplast; nucleus centrally located (Süßwasserflora von Mitteleuropa 9, Chlorophyta I, 1983).

31 μm 63 μm 94 μm; x 640

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).