Species: Cells 8-17 μm;
colony 20-50 μm to 250 μm;
16 cells as a tight sphere within clear matrix
(How to know the protozoa, 1979).
Colony barrel-shaped, 8- or 16-celled; cells wedge-shaped; chloroplast longitudinally striated;
colony 20-42 μm across, 60 μm
long; cells 8-17 μm diam. (Illustrated Guide, 1985).
Sexual reproduction by isogamy
(An Illustrated Guide to Freshwater Zooplankton in Japan, 2000).
Sexual reproduction by iso- or anisogamy
(Süßwasserflora von Mitteleuropa 9, Chlorophyta I, 1983).
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50 μm
