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.
Krammer K. & Lange-Bertalot H. (1991): "Susswaserflora von Mitteleuropa", Vol.1, pg. 387, 388, Taf.171:1-11;
Navicula schumanniana (Grunow, 1880), Navicula trochus (sensu Schumann, 1863, non Ehrenberg 1838), Caloneis limosa (sensu Patrick in Patrick & Reimer, 1966)
Valves linear-elliptical with broadly rounded apices, 20-50µm long, 8-14µm broad. Raphe straight, axial area narrow-lanceolate, widened around the central nodule into a large elliptical central area, lunar-crescent-shaped markings in which the striae continue present on both sides of the raphe. Transapical striae slightly radiate, 17-20 in 10µm, often interrupted in the middle, crossed by longitudinal lines on both sides.
Located: PFB582, loc. 41 x 102.8