Cell body spherical in shape, 18-28 μm in diam.;
a single pyrenoid located at the center of the cell body;
papillae absent; stigma and nucleus located anteriorly
(Süßwasserflora von Mitteleuropa 9, Chlorophyta I, 1983).
Similar tetra-flagellates -->> Zoospores of Geminella; Carteria globosa Korschikoff in Pascher 1927 ?,
cell body 19 μm long, 18 μm wide, four flagella 22 μm long,
x 640, Demaru-nakago (near Shimo-Oyashiki), Kawajima (Kawashima) town, Saitama Pref., March 21, 2005 by Y. Tsukii
94 μm; x 640