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.
Norpel, Lange-Bertalot & Alles
Krammer & Lange-Bertalot (1997), Vol. 2/3, pg. 197, fig. 143: 1-9A
Eunotia impressa var. angusta (Grunow in Van Heurck 1881), Eunotia impressa var. angusta f. vix impressa (Grunow in Van Heurck 1881)
Ventral margin slightly concave, dorsal margin convex with narrower, slighly drown out and rounded ends. Striae straight, slightly radiate towards the ends.
Found in the bottom part (ca. 158cm and lower) of the sediment core collected in Featherbed Bank, central part of Biscayne Bay.