Protocucurbitella coroniformis var. pusilla f. ecornis Gauthier-Lièvre & Thomas, 1960
Diagnosis: This form only differs from the var. pusilla by the absence of horns; individuals were of variable shape, subglobose or ovoid and the collar sometimes well marked.
Dimensions: Height 130 μm; width 120 μm; pseudostome 50 μm.
Ecology: various wetlands, Africa, Uganda: