FIGURES 36–39 in Adlafia sinensis sp. nov. (Bacillariophyceae) from the Wuling Mountains Area, China, with reference to the structure of its girdle bands

FIGURES 36–39. Adlafia sinensis sp. nov., SEM. 36–38. External view of valves, showing hooked terminal raphe fissures, the areolae covered by hymenes externally and two rows of poroids on the girdle band (Fig. 38, arrow). 39. The internal view of valve, note the deep mantles. Scale bars = 5 μm.