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.
Cocconeis placentula var. euglypta
Krammer K. & Lange-Bertalot H. (1991): "Susswaserflora von Mitteleuropa", Vol.4, Taf.53, fig.15, p.87
structure of raphid valve is the same as in the nominate, araphid valve has robust areolae; striae are areolate; length is 10-46µm; striae count is 19-22 in 10µm