Difflugia ampla Rampi, 1950

Diagnosis: The shell is broadly pyriform, with a wide, rounded posterior region that narrows regularly towards the apertural area. The pseudostome is round, without any distinct external differentiations. The shell is completely covered with mineral grains.

Dimensions: Rampi (1950): Shell length 225 µm; width 175 µm. Gauthier-Lièvre and 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.