FIGURES 24–29 in Two new freshwater species of Bacillaria (Bacillariophyta) from Dongting Lake, China

FIGURES 24–29. Bacillaria sinensis sp. nov., internal view, SEM. 24. A complete valve. 25. Middle detail of Fig. 24, note one transapical rib forming two branches (arrow) and fibulae (F). 26. An apical detail of Fig. 24, note two asymmetrical fibular ribs. 27. Another apical detail of Fig. 24, note one transapical rib forming two branches (arrow). 28. Other valve middle part, note one transapical ribs forming two branches (arrow). 29. Other valve apex, note one transapical ribs forming two branches (arrow) and two transapical ribs merging into one (three curved arrows). Scale bar = 10 μm (Fig. 24), 2 μm (Figs 25–29).