FIGURES 66–68 in New Amphicocconeis (Bacillariophyta) from Raivavae and Tahiti Islands (South Pacific) and Porto Belo (Brazil), with re-examination of Psammococconeis

FIGURES 66–68. Amphicocconeis cf. mascarenica. (material from Raivavae, Tahiti and Moorea Isls, South Pacific). RV in internal view, with RVVC still in place, note the regularly biseriate row of alternate round pores corresponding to each RV stria (Fig. 66), RVVC apex in abvalvar side (Fig. 67), complete and open RVVC in advalvar view (Fig. 68). Scale bars: 3 µm (Figs 66, 68), 600 µm (Fig. 67).