Family: Two long flagella, 1-2 chloroplasts and 1-2 contractile vacuoles present (Starmach, 1985). Genus: Cell body naked, colorless (without chloroplasts), a contractile vacuole present, colony embedded in a gelatinous matrix of various shape (Starmach, 1985). Species:

31 μm 63 μm 94 μm; x 640