Trachyneis aspera (Ehrenberg) Cleve (Figure 74)

Literature: (Cardinal et al. 1984, p. 391, figs. 98–102; Hendey 1964, p. 236, pl. 29, fig. 13; Witkowski et al. 2000, p. 355, pl. 159, figs. 1–6, 9).

Description: Length 62–104 µm, width 12–15 µm, striae 14–16 in 10 µm.

Remarks: A species with variable outline and wide size variation. Specimens observed in the present study had denser striae than normally found in this species (6–8 in 10 µm) and vary from previous observations in the same region (9–11 in 10 µm, Al-Handal and Wulff 2008b).

Ecology and distribution: A widely distributed marine littoral species. Recorded from the sub-Arctic and the Arctic (Cardinal et al. 1984; von Quillfeldt 2000). Frequent in Potter Cove.