FIGURE 12 in Taxonomy of epilithic diatoms and teratological forms under the presence of metals in surface sediment

FIGURE 12. Epilithic diatoms from Cascavel River micro-watershed in SEM. A. Cyclotella kingstonii. B–C. Discostella stelligera. C. Internal view. D. Aulacoseira ambigua. E–F. A. tenella. F. Internal view. G. A. pusilla. H–I. Fragilaria radians. H. Internal view. J–K. F. pectinalis. Scale bars: 2 µm (Figs A–H, K), 5 µm (Figs I–J).