Order Echinamoebida (Cavalier-Smith, 2004) Smirnov et al, 2011
Diagnosis: Flattened limax amoebae with or without spine-like subpseudopodia; if spiny subpseudopodia absent, length/breadth ratio >6.
Two families:
Family Echinamoebidae Page, 1975 em. Cavalier-Smith and Smirnov 2011
Echinamoeba
Micriamoeba
Family Vermamoebidae Cavalier-Smith and Smirnov 2011
Vermamoeba
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