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 I", pg.36, Pl.8:12, 13, Pl. 9:1-3;
Diatoma auritum (Lyngbye, …), Biddulphia aurita (Lyngbe) Brebisson, 1838))
Cells oblonge to rectangular in girdle view, with elliptic-lanceolate valve face, 10-95µm lng. Valves linear elliptic, coarsely areolated 8-11 areole in 10µm, with protracted, obtusely rounded elevations, Midle portion of the valve convex with two long tubular processes.