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.3, Taf.44, fig.1-10, p.44,45; Guide methodologique pour la mise en oeuvre de I'Indice biologique diatomees"(2000), Pl.4
Surirella melosiroides (Meneghini 1844), Cyclotella operculata B Rectangula (Kutzing 1849), Cyclotella rectangula (Brebisson ex Rabenhorst 1853), Cyclotella meneghiniana var. rectangulata (Grunow in Van Heurck 1882), Cyclotella kuetzingiana (Twaites 1848), Cyclotella meneghiniana var. vogesiaca (Grunow in Van Heurck 1882), Cyclotella meneghiniana var. binotata (Grunow in Van Heurck 1882), Cyclotella meneghiniana var. plana ((Fricke) Hustedt 1928), Cyclotella laevissima (Van Goor 1920), Cyclotella meneghiniana var. laevissima ((Van Goor) Hustedt 1928)
Cells are barrel-shaped, with more-or-less tangentially undulate valves, and are strongly striated from the marginal area to halfway towards the middle; all ribs are the same (bumps and thickened ribs are absent), widening towards the margins and narrowing towards the centre (8-9 in 10µm); central area is plain, or with faint radiate, punctate striae, sometimes with a few solitary large punctae; diameter is 10-30µm