Caloneis sp. (Figure 65)

Description: Length 72–85 µm, width 10–14 µm, striae 18– 20 in 10 µm.

Remarks: The specimens observed were similar to some forms of the freshwater species Caloneis silicula (Ehrenberg) Cleve but with denser striae and raphe proximal endings bent when entering the central area.

Ecology and distribution: Rare in Potter Cove.