Genus Cornuapyxis Coûteaux & Chardez, 1981
Diagnosis: Form similar to Cyclopyxis but aperture crescent-shaped. Shell hemispherical in lateral view, ventral sole weakly invaginated, smooth, dorsal surface covered with small mineral grains.
Ecology: From mosses and soil, tropical rain forests, French Guyana.
Monospecific. Ref. Coûteaux and Chardez (1981).
Type species: Cornuapyxis Iunaristoma Coûteaux & Chardez, 1981.
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