Genus: One emergent flagellum; non-emergent flagellum ends within reservoir; colourless;
osmotrophic; no eyespot; rigid; solitary; elongated; curved; strongly flattened
(Illustrated Guide, 1985).
50 μm
100 μm
150 μm; x 400 :
31 μm
63 μm
94 μm; x 640
