Species:
Cell body (cellwall) cylindrical, both ends rounded, anterior end slightly domed,
15-38 μm long, 8-20 μm wide;
cellwall thin; papilla absent; protoplast ovoid or ellipsoidal or spindle-shaped;
length of flagella the same as that of cell body; chloroplast cup-shaped; a single pyrenoid spherical, at
posterior half of the cell; stigma elliptical, anterior; nucleus anterior; two contractile vacuoles apical
(Süßwasserflora von Mitteleuropa 9, Chlorophyta I, 1983).
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