Padaungiella magna  (Van Oye, 1956)

Diagnosis: Shell lageniform with a thick, distinct apertural rim (“annulus”). Shell structure like that of other Padaungiella, Nebela, and similar taxa.

Dimensions: According to Van Oye (1956): Shell length 177 μm; width 103 μm; aperture 35 μm; L/B 1.72.

Habitat: Sphagnum peatlands.

Geographical distribution: New Zealand.

Remarks: Kosakyan et al., 2025: “The taxon was described based on a single specimen. Because of its large size, however, it is unlikely that it belongs to any previously described species. Further investigations are needed to confirm the validity of this species.”

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.