Description of Askenasia volvox
Colonies spherical or oblong, 40-300 microns large. Cells oval or pear-shaped, 14-18 microns long, 10-12 microns wide with the tapered posterior end. Main flagellum about twice as long as the cell. Gold-yellowisch chloroplast with oblong eye mark. Nucleus in central. A contractile vacuole in the front end.