Euamoebida Lepsi 1960, emend. Smirnov et al. 2011
Diagnosis: Naked amoebae with subcylindrical pseudopodia in locomotion (or the entire cell is monopodial and subcylindrical); without alteration of the locomotive form to a flattened expanded and branched one; without adhesive uroid; glycocalyx amorphous, filamentous or consisting of prismatic, cup-shaped structures.
The diagrams below show the three morphotypes of locomotive forms of Euamoebida: