FIGURES 7–10 in Three new Hantzschia species (Bacillariophyta) from the Maritime Antarctic Region

FIGURES 7–10. Hantzschia australabundans. Scanning electron micrographs (SEM) of the type population (Livingston Island, Byers Peninsula, sample LIV-BY16A). Fig. 7. External view of an entire valve showing the ventral hyaline border. Fig. 8. External detail of the central area with the interrupted proximal raphe endings and the shallow areolae. Fig. 9. Internal view of an entire valve showing the irregularly placed fibulae. Fig. 10. Internal detail of the central area with the interrupted proximal raphe endings located on a heavily silicified central nodule. Scale bar represents 10 μm except for figs 9 & 11 where scale bar = 1 μm.