
H. stenostoma, from Kosakyan et al., 2025, and Deflandre, 1931
Hyalosphenia stenostoma Deflandre, 1931
Basionym: Hyalosphenia papilio stenostoma Deflandre, 1931
Diagnose. Shell shape differs from the type, gradually tapering towards the aperture in broad view, similar to the shape of Alabasta militaris for the anterior end, and by the narrower pseudostome.
Dimensions: Shell length 110–127 µm µm.
Ecology: Sphagnum mosses.
Geographical distribution: Europe: Belgium, France, Germany, Switzerland.
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.