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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)

Isthmia enervis

Isthmia enervis


Authority:
Ehrenberg
Year:
1838
References:
Peragallo MM.H. et M. (1897 - 1908):"Diatoms of France (Atlas)", PL.XCII, fig.1,2;
Synonyms:
Conferva obliquata (Smith, 1808), Diatoma obliquatum (Lyndgbye, 1819), Biddulphia obliquata (Gray, 1821), Istmia obliquata (Agardh, 1832)
Ecological Preference:
Marine
Description:
The valves are very big, having rhombish to trapezoid shape, smaller forms can have elliptic shapes, 60-360µm long. Areole have quadratic shapes, 3 in 10µm, the apices blountly rounded.
Projects:
  • Florida Bay Paleo Project


    • Sample localities:
  • Florida Bay