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world of amoeboid organisms

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Polytactic and orthotactic
Large polypodial amoebae with well pronounced pseudopodia; in fast locomotion monopodial form.

Palmate
Midsize polypodial amoebae with numerous pseudopodia which are formed rom the basal part of the body.

Dactylopodial

Usually small amoebae, wit characteristic finger-shaped hyaline subpseudopodia (dactylopodia).

Acanthopodial
Small amoebae with sharp, tapering, pointed, sometimes furcate, hyaline subpseudopodia.
Monotactic
Monopodial, elongate  amoebae without any lateral or dorsal wrinkles and with steady cytoplasmic flow.

Rhizotactic
Amoebae in rapid locomotion monotactic, with distinct adhesive uroid and usually with large hyaline cap. 

Flamellian
Amoebae elongate to semicircular, flattened, with frontal subpseudopodia, lobes and waves. 

Lens shaped
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.

Fan shaped
Amoebae flattened, fan shaped, semicircular or spatulate amoebae, without subpseudopodia.

Mayorellian
Amoebae elongate or irregularly triangular, with blunt conical or mammilliform 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. 

Eruptive
Monopodial amoebae, eruptive in locomotion. Eruptions may be more or less pronounced, but are always visible (distinguish from Rhizamoeba, which also has eruptive traits).

Vampyrellids
Filose amoebae which feed on algae.

Mastigamoeba
Amoebae with cilium, usually very long.

Pelomyxa
Amoebae oblong or ovoid, sometimes with small cilia

Not classified

Recent posts

Organic-walled species

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Velamentofex tyrolensis

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Raphidiophrys spec. nov.

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Lacogromia spec. Naardermeer

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Sphenoderia rhombophora

S. rhombophora , after Bonnet, 1966 Sphenoderia rhombophora Bonnet, 1966 Diagnosis: Test hyaline, ellipsoidal, very slightly compressed. Fundus relatively narrow. Pseudostome largely truncated. Neck very

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Sphenoderia ovoidea

S. ovoidea , after Jung, 1942 Sphenoderia ovoidea Jung, 1942 Diagnosis: Shell with four layers of plate-scales. Distinguished from S. fissirostris by the ovoid tapering

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Sphenoderia truncata

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Nebela gimlii

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Sphenoderia, with granules

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Nebela overview

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