FIGURES 35–38 in Stenopterobia cataractarum sp. nov. (Bacillariophyta), a new benthic diatom from a waterfall in Zambia, Africa

FIGURES 35–38: Stenopterobia cataractarum sp. nov., type material from sample 12-349, Ntumbachushi Falls, Luapula Province, Zambia, SEM. Internal valve view. Figure 35. Overview of the entire valve. Figure 36. Detail in the middle of the valve showing the simple portulae and the bi- to triseriate striae composed of unoccluded areolae. Figure 37. Apical pole with simple, slightly bent internal terminal raphe fissures. Figure 38. Base pole with simple, straighter terminal raphe fissures extending slightly onto the valve mantle. Scale bars: 10 µm (in Fig. 35). Scales bar: 2 µm (in Figs 36–38).