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 protracted, rostrate to sub-capitate ends deflected ventrally. Dorsal margin undulated; ventral margin more or less straight. Raphe branches straight, proximal and distal ends bent dorsally. Axial area narrow, linear. Dorsal striae parallel at the center, becoming radiate towards the ends, crossed by hyaline area clearly visible under LM especially along the raphe. Dorsal striae also crossed by thick longitudinal costae present in upper part of the valve, clearly visible under LM. Ventral striae absent.
43.3 - 63.5 µm
7.6 - 10 µm
18 - 21