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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)

Amphora obtusa var. oceanica


Authority:
(Castracane, 1886) Cleve
Year:
1895
References:
Montgomery R.T. (1978). Environmental and ecological studies of the diatom communites associated with the coral reefs of the Florida Keys, Vol.II, Pl.10, fig.E
Synonyms:
Amphora oceanica (Castrane, 1886), Amphora fallax (Tempere at Brun in Brun et tempere, 1889), Amphora cyclops (Leuduger-Fortmorel, 1879), Amphora obtusa var. fallax (Mills, 1933)
Ecological Preference:
Marine
Description:
Valves linear with broadly rounded ends. Dorsal margin arcuate, ventral margin straight. Raphe branches abruptly arched. Axial area narrow, widened near the center; central area slightly expanded at the dorsal side, absent on the ventral side. Dorsal and ventral striae delicately punctuate, more or less parallel at the center becoming radiate towards the ends. Differentiate from A. obtuse by having more robust valve shape.
Length:
56.2 - 100.1 µm
Width:
19.3 - 21.9 µm
Strd:
15 - 19
Strv:
17 - 20
Projects:
  • Southeast Florida Coastal Mangroves


  • Sample localities:
  • Coastal Mangroves