Family: With two unequal flagella (heterokonta); no pellicle and plastic (Kudo, 1966).
Genus: Solitary or colonial; body surface delicate; one to two chloroplasts; usually with a stigma;
fresh water (Kudo, 1966).
One to several chloroplasts; pyrenoid and/or eyespot (stigma) in some; cells naked, globular,
ellipsoidal or pyriform (Illustrated Guide, 1985).
50 μm
100 μm
150 μm; x 400 :
31 μm
63 μm
94 μm; x 640
