Pinnularia quadratarea (A. Schmidt) Cleve (Figure 78)

Literature: (Snoeijs and Vilbaste 1994, p. 94, fig. 182; Witkowski et al. 2000, p. 335, pl. 155, figs. 17–21).

Description: Length 44–95 µm, width 10–13 µm, striae 8–10 in 10 µm.

Remarks: In our previous records of 2003, this species was less common in Potter Cove but in the present study it appeared in high numbers with larger valve size.

Ecology and distribution: Widely distributed marine species in temperate and polar regions (Cardinal et al. 1984; Hsiao 1980). Common in Potter Cove.