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.
Wachnicka & Gaiser
Valves semi-lanceolate with rostrate ends slightly deflected ventrally. Dorsal margin convex; ventral margin straight. Raphe branches straight, proximal and distal ends deflected dorsally. Axial area narrow on the dorsal side, somewhat more expanded on the ventral side. Central nodule easily visible under LM. Dorsal striae parallel becoming slightly radiate towards the ends; ventral striae delicate, parallel, moderately long, shorter at the center.
Commonly recorded in surface sediment samples collected from several locations in Florida Bay at sites with water depth < 2m and salinity ranging between 25 - 35ppt.