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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)

Brachysira neoexilis var. neoexilis Morph.1

Brachysira neoexilis var. neoexilis  Morph.1

Lange-Bertalot H. & Moser G. (1994):"Brachysira. Monographie der gattung", p.51, Taf.7, fig.1-7
Navicula exilis, Anomoeoneis exilis, Navicula variabilis var. capitata, Anomoeoneis fo.undulata
Ecological Preference:
Valve is lanceolate, elliptical- to rhombic-lanceolate with apices that are distinctly rostrate; raphe is filiform; axial area is linear, leading to a circular or moderately rhombic central area; transapical striae are radiate; length is 12-34(36)µm, breadth is 3-5(7)µm; striae count is 30-36 in 10µm
  • Southeast Florida Coastal Mangroves
  • Florida Bay Paleo Project
  • Dosing Project
  • CERP
  • Transect Project

  • Sample localities:
  • Water Conservation Areas (WCAs)