Genus: Spindle, cylindrical or band-form; pellicle usually marked by longitudinal or spiral striae; 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:

->> Description at WPRNO

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E. bivittata ? 28 x 7 μm Kaga Ishikawa, 2000

E. bivittata ? 29 x 7.5 μm Sannoh park Nishi-ku Saitama, 2004

E. bivittata ?? 42 x 7 μm Ikenokochi marsh Tsuruga Fukui, 2004

E. bivittata ? 45 x 9 μm near Oyomi marsh Hakuba Nagano, 2004