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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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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)

Hantzschia elongata

Hantzschia elongata

(Hantzsch) Grunow
Krammer, K. and Lange-Bertalot, H. (1991). Baccilariophyceae: Bacillariaceae, Epithemiaceae, Surirellaceae. in: Süßwasserflora von Mitteleuropa (H. Ettl, J. Gerloff, H. Heynig & D. Mollenhauer, eds), 2(2), pp. 128-129; 394-395 [t.89:1-2A]
Nitzschia vivax var. elongata Hantzsch 1860; Nitzschia elongata (Hantzsch) Grun. 1867 non Hassall 1845; Hantzschia (amphioxys var.?) elongata Grunow in Van Heurck 1881; Hantzschia amphioxys var. elongata (Hantzsch) Van Heurck 1885
Frustule is curved with slightly capitate ends, and pinched in the middle of the raphe keel; the two middle striae are further apart from each other than the rest; 7-8(10) fibulae in 10µm; length is 230-430µm, breadth is 10-14µm; striae count is 12-19 in 10µm
  • Transect Project

  • Sample localities:
  • Shark River Slough (SRS)