Hyalosphenia rotunda (Van Oye, 1958)
Basionym: Hyalosphenia schoutedeni var. rotunda Van Oye, 1958

Diagnose. Shell differs from the type by its smaller size, and almost circular shape in broad view.

Dimensions: According to Van Oye (1958): Shell length 20 μm; width 17 μm.

Habitat: Freshwater, wetland. Sphagnum mosses, pH 3.8.

Geographical distribution: Africa: Congo.

References: Kosakyan, A., Meisterfeld, R., Lara, E., Duckert, C., Mitchell, E., 2025. A taxonomic monograph of hyalospheniid testate amoebae. Amoebozoa: Arcellinida: Hyalospheniformes, Mémoire XIV. Éditions Alphil-Presses universitaires suisses, Neuchâtel.