Hyalosphenia baliki Kosakyan et al., 2025

Diagnosis: Shell ovoid in broad view, compressed, wavy sides, pseudostome small. Shell colorless or yellowish, very smooth. Aperture straight in broad view, thickened at the edges, as in Hyalosphenia subflava.

Dimensions: Shell length 58–81 µm; width 36–52 µm; aperture 14–28 µm.

Ecology: Conifer forest (plantation), humus, and litter.

Geographical distribution: Europe, Czech Republik.

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.