Polytactic and orthotactic
Large polypodial amoebae with well pronounced pseudopodia; in fast locomotion monopodial form.
Midsize polypodial amoebae with numerous pseudopodia which are formed rom the basal part of the body.
Usually small amoebae, wit characteristic finger-shaped hyaline subpseudopodia (dactylopodia).
Small amoebae with sharp, tapering, pointed, sometimes furcate, hyaline subpseudopodia.
Monopodial, elongate, amoebae, without any lateral or dorsal wrinkles and with steady cytoplasmic flow.
Amoebae in rapid locomotion monopodial, with distinct adhesive uroid and usually with large hyaline cap.
Amoebae elongate to semicircular, flattened, with frontal subpseudopodia, lobes and waves.
Amoebae lens shaped, dorsal surface covered by a flexible tectum or cuticle.
Striate and rugose
Amoebae oblong or rounded with several parallel dorsal folds and/or with numerous irregular dorsal wrinkles.
Lanceolate or lingulate
Amoebae lancet or tongue like, with lateral flatness, without folds or wrinkles, except Paradermamoeba.
Amoebae flattened, fan shaped, semicircular or spatulate amoebae, without subpseudopodia.
Amoebae elongate or irregularly triangular, with blunt conical or mamilliform subpseudopodia.
Branched, but not reticulate, pseudopodia without granules
Amoebae flattened, branched without any reticulum. Pseudopodia without granules or only at the base.
Branched and reticulate, pseudopodia without granules
Amoebae flattened, branched with anastomosing pseudopodia. Pseudopodia without granules or only at the base.
Branched and reticulate, with granulopodia
Amoebae flattened, branched with anastomosing pseudopodia. Pseudopodia with bi-directional streaming.
Monopodial amoebae, eruptive in locomotion. Eruptions may be more or less pronounced, but are always visible (distinguish from Rhizamoeba, which also has eruptive traits).
Filose amoebae which feed on algae
Amoebae with cilium, usually very long
Amoebae oblong or ovoid, sometimes with small cilia