FIGURES 1–9 in Three new Craticula species (Bacillariophyta) from the Maritime Antarctic Region

FIGURES 1–9. Craticula australis. LM & SEM pictures taken from the holotype population (sample D02) from Lachman Lake I, James Ross Island. 1–7. Light microscopy observations. 8. Internal view of the central area with focus on the proximal raphe endings and the perforated areola occlusions. 9. Internal view of an entire valve showing the raphe and the variable distance between the striae. Scale bar represents 10 μm except for Fig. 8 where scale bar = 1 μm.