Genus: Unicellular or colonial within a gelatinous sheath; planktonic; cell body spherical; 1 or several chloroplasts cup-shaped, with a pyrenoid (Guide book to the "Photomicrographs of the Freshwater Algae", 1998).
Similar genus -->
sp. ?, cell body spherical,
μm in diam., x 640, Koma river, Sakado city, Saitama Pref., Japan, December 24, 2003 by Y. Tsukii
94 μm; x 640
Please click on images for viewing enlarged.
Protist Information Server