Trinema nassa Decloitre, 1965
Diagnosis: Test just as other Trinema species with similar arrangement of the plates, but the inner border of the pseudostome is ornamented with small plates each with a short spine that points to the centre of the aperture. Spines about 1.5 µm long. Test compressed.
Dimensions: length 50-55 µm; width 25-30 µm; aperture 10-12 µm.
Ecology: Freshwater, Congo, Mbila, Africa
Leptophrys vorax, Naardermeer, the Netherlands 2019 Leptophrys vorax
Difflugia globulosa, 70 µm, stacked image Difflugia globulosa (Dujardin, 1837) Penard, 1902 – Small species Diagnosis: Shell light to dark brown, spherical, composed of small
Ditrema spec. Ditrema spec. Diagnosis: Shell as with D. longicollis, but much smaller, surrounded by V-shaped structures that gave it the impression of a star.
Pompholyxophrys Pompholyxophrys Pompholyxophrys Rabdiophrys Rotosphaerida Rainer, 1968 Diagnosis: Aciliate predominantly spherical or flattened amoebae from which elongated actin-based filopodia extend; with flat discoid mitochondrial cristae;
Key to Centropyxis species 1 Test in dorsal view circular or almost circular 2 – Test in dorsal view irregular due to various outgrows and