Welcome to the Diatom Image Database! The Periphyton Group at Florida International University created and maintains the Diatom Image Database, which includes over 980 diatom taxa found in the greater Everglades region of south Florida. Please send questions or comments about the Diatom Image Database to Franco Tobias .
You can also click on one of labeled areas on the map to browse by location.
Witkowski et al. (2000). Iconographia Diatomologica (Vol.VII). Diatom flora of marine coast. Part 1. pg.146, Pl.162:26,27;
Valves semi-elliptic with dorsal side convex, and slightly concave ventral side, 10-15µm long, 2.5-4µm broad. Raphe arcuate, axial area narrow, linear, central area only at the ventral side, triangular, riching valve margin. Dorsal striae parallelin the middle, becoming radiate towards the ends, ventral striaein the middle radiate, becoming convergent towards the ends.