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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Amphora corpulenta var. capitata
Tempere et Peragallo
Tempere & Peragallo 1909, p.145, No. 268
Valves semi-elliptic with protracted sub-capitate to capitate ends. Dorsal margin convex, ventral margin straight. Raphe filiform, raphe branches straight; proximal and distal ends deflected dorsally. Axial area narrow, central area not expressed. Dorsal striae composed of rectangular puncta; slightly radiate at the center becoming more radiate towards the ends. Ventral striae very dense, dash-like, hardly resolvable under LM.
Common in surface sediments and sediment cores collected near Bob Allen Key and Russell Bank, Florida Bay with water depth < 2m and salinity ranging between 30 – 35ppt and in Biscayne Bay at sites with similar environmental conditions.
50.4 - 79.2 µm
17.2 - 22.2 µm
11 - 14