Protocucurbitella coroniformis var. pusilla Gauthier-Lièvre & Thomas, 1960
Diagnosis: The general appearance of this variety is that of a small Difflugia corona, with a generally transparent test; other characters are those of the type.
Dimensions: Height with horns (-135) 150-170 (-185) μm; without horns: 110-150 μm; width 120-130 (-60) μm;
Ecology: ponds and marshes, Africa, Uganda, Madagascar.