Difflugia angulostoma  Gauthier-Lièvre & Thomas, 1958

Diagnosis: The shell is transparent and spherical, with a rough surface primarily embedded with diatom valves. The xenosomes are packed tightly, often overlapping. The pseudostome is large, comprising more than one-third of the width. It is rounded, although its contour may be uneven due to protruding flaps.

Dimensions: According to Gauthier-Lièvre and Thomas (1958): Shell length 40—80 µm; width 40—73 µm; pseudostome 18—51 µm.

Habitat: Freshwater.

Geographical distribution: Africa.

References: Gauthier-Lièvre, L., and Thomas, R., 1958. Les genres Difflugia, Pentagonia, Maghrebia & Hoogenraadia (Rhizopodes testaces) en Afrique. Arch. Protistenkd., 103, 241–370.