Genus: Spherical or ellipsoidal colony composed of 2-50 ovoid cells arranged radially;
cell body usually covered by short bristles; two chloroplasts lateral; no stigma;
longitudinal cell division; fresh water (Kudo, 1966).
Species: |
50 μm
100 μm
150 μm; x 400
31 μm
63 μm
94 μm; x 640
