Genus: Unicellular, solitary or gregarious; cells flask-shaped composed of globose basal portion and
a narrow cylindrical gelatinous sheath, with a long fine seta extending from the cell through
the sheath (Photomicrog. Fresh-w. Alg. 4, 1985).
Species:
Cells 10-20 μm in diameter at the base
(Photomicrog. Fresh-w. Alg. 4, 1985).
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