Genus: Spindle, cylindrical or band-form; pellicle usually marked by longitudinal or spiral
stirae; some with a thin pellicle highly plastic; stigma usually anterior; chloroplasts discoid,
band-form, or fusiform; two paramylum bodies located on
either side of nucleus, rod-like to ovoid in shape or numerous and scattered throughout; contractile vacuole
near reservoir; cell division longitudinal (Kudo, 1966).
Species:
80-170 μm long,
25-45 μm wide;
posterior bluntly rounded; flagellum about the body length; pellicle striated;
chloroplasts elongated, parallel to the striae;
haematochrome granules scattered in sun light and gathered in central area in darkness
(Kudo, 1966).
Body broadly fusiform;
90-120 μm long,
25-35 μm wide;
anterior rounded, posterior tapered with a short process;
chloroplasts tasselized and forming chromatophore bands, 12-16 in number;
flagellum = body length
(Photomicrographs of the Freshwater Algae, 1996).