Description: The cells are 1/3 longer than wide coarsely oval in shape, tri-radial, but similar to a Cosmarium. Thr central cuts are shallow, the cell edges with small waves. The cell wall is covered with concentric rings of small warts. The vertex view is triangular with broadly rounded off ends.

Dimension: Length appr. 40 µm, width appr. 30 µm.

Occurrence: Known only from northern areas (Baffin Island and Labrador).

Original graphic by Prof. Lenzenweger.

Copyright by Prof. Rupert Lenzenweger, Ried im Innkreis, Austria.