Genus: Unicellular; planktonic; cell body elongated cylindroid, both ends with long spiny projections;
cell wall separated into two parts overlapping at the mid-region;; several chloroplasts plate-like, without pyrenoids
(Guide book to the "Photomicrographs of the Freshwater Algae", 1998).
Species:
(Süßwasserflora von Mitteleuropa 3, Xanthophyceae 1, 1978).
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