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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 .

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You can also click on one of labeled areas on the map to browse by location.
Map of south Florida Loxahatchee (LOX) WCA 2A WCA 3A Biscayne Bay Shark River Slough (SRS) Taylor Slough (TS) Florida Bay Everglades National Park (ENP) Everglades National Park (ENP)

Caloneis excentrica

Caloneis excentrica

Caloneis excentrica

(Grunow) Boyer
Witkowski, A. (2000). Diatom Flora of Marine Coast. Iconographia Diatomologica, Vol.7, Pg.744, Fig.6;
Ecological Preference:
Valves broadly linear with rounded or cuneate ends, 90-140µm long, 17-25µm broad. Raphe slightly undulating, central ends bent in the same direction, central area often slightly dilated unilaterally, axial area narrow. Transapical striae 20-22 in 10µm, parallel throughout the valve, striae on both sides of the raphe crossed by longitudinal lines.
  • Southeast Florida Coastal Mangroves
  • Florida Bay Paleo Project

  • Sample localities:
  • Florida Bay