Difflugia ampla Rampi, 1950
Diagnosis: Test broadly pyriform, with a wide and rounded posterior region with sides regularly narrowing towards the apertural area. Pseudostome round without particular external differentiations. Test completely covered with mineral grains.
Dimensions: Rampi (1950): Length 225 µm, width 175 µm. Gauthier-Lièvre et Thomas (1958): Length 145-150 µm, width 130-138 µm, diameter of the aperture 45-48 µm.
Ecology: Freshwater. In sediment of Lake Frissón, Italy; Africa.