Nitzschia sp. (Figure 101)

Description: Raphe broadly linear, constricted in the middle with rounded, slightly produced apices, 110–140 µm, 11–14 µm wide. Raphe eccentric, fibulae 4–6 in 10 µm, median fibulae distant. Striae very fine, not resolved in LM, areole irregularly and randomly dispersed.

Ecology and distribution: Not known.