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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)

Seminavis ventricosa


Authority:
(Gregory) Garcia - Baptista
Year:
1993
References:
D.B. Danielidis & D.G. Mann (2003). New species and new combinations in the genus Seminavis (Bacillariopyta). Diatom Research, Vol.18(1), pg.21-39;
Synonyms:
Amphora ventricosa (Gregory, 1857)
Ecological Preference:
Marine
Description:
Valves semi-lanceilate with convex dorsal margin and straight or slightly concave ventral margins, 50-75µm long, 6-10µm broad. Axial area wider on the dorsal side, dorsal mantel is deep with no distinct boundery towards the valve face, raphe parallel and cloase to the ventral margin with central ends deflected ventrally, dorsal striae very weekly radial, 10-12 in 10µm, the middle striae usually missing or reduced , not reaching the axial area.
Projects:
  • Amphora Project


    • Sample localities: