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Diatom Image Database

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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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)

Amphora securicula

Amphora securicula


Authority:
Peragallo
Year:
1899
References:
Witkowski et al. (2000):"Iconographia Diatomologica (Vol.VII). Diatom flora of marine coast I", pg.150, Pl.167:23, 24;
Ecological Preference:
Marine
Description:
Valves semi-lanceolate with convex dorsal margin and triundulate ventral margin, inflated in the middle with acute apices, 50-80µm broad, 13-18µm broad. Raphe biarcuate, axial area narrow, central area absent. Transapical striae radiate, 10-14 in 10µm.
Notes:
Rare in surface sediment samples collected from Florida Bay at sites with water level < 1m and salinity between 29 – 35ppt
Length:
58.2 µm
Width:
10 µm
Strd:
17
Strv:
19
Projects:
  • Southeast Florida Coastal Mangroves
  • Florida Bay Paleo Project


    • Sample localities:
  • Florida Bay