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.
Bacillaria paradoxa var. tumidula
Witkowski et al. (2000):"Iconographia Diatomologica (Vol.VII). Diatom flora of marine coast I", pg.25, Pl.196:8;
Nitzschia paradoxa var. tumida (Grunow in Cleve and Grunow 1880)
Valves linear, spindle-shaped in outline, inflatedt in the middle part of the valve with slightly protracted ends 55-85µm long, 4-8µm broad. Central keel with 6-8 puncta in 10µm. Striae parallel throughout the valve 21 in 10µm.