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world of amoeboid organisms

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Order Euamoebida Lepşi 1960, emend. Smirnov et al. 2011

Naked amoebae with tubular, subcylindrical pseudopodia (or the entire cell is monopodial and subcylindrical); no alteration of the locomotive form; no adhesive uroidal structures; sorocarpic development in some species

Suborder Amoebina Cavalier-Smith, 2016

  1. Family Amoebidae (Ehrenberg, 1838) Page, 1987(Amoeba, Chaos, Polychaos, Parachaos, Trichamoeba, Deuteramoeba, Hydramoeba)
  2. Family Hartmannellidae Volkonsky, 1931 em. Smirnov et al., 2011(Cashia, Copromyxa, Copromyxella, Glaeseria, Hartmannella, Ptolemeba, Saccamoeba)

Suborder Nolandina Cavalier-Smith, 2016

  1. Family Nolandellidae Cavalier-Smith in Smirnov et al., 2011 (synonym Nolandellidae Lahr and Katz in Lahr et al., 2011) (Nolandella)

The diagrams below show the three morphotypes of locomotive forms of Amoebina:

Lobosea

Smirnov et al. (2011), A Revised Classification of Naked Lobose Amoebae   An excellent guide to the morphology and indentification of naked amoebae is: Smirnov, A. V., Brown, S. (2004): Guide to the study and identification of soil amoebae. Protistology 3:148–190.

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Zivkovicia compressoidea

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Zivkovicia flexa

Zivkovicia flexa, from Cash and Hopkinson, 1909 Zivkovicia flexa  (Cash and Hopkinson, 1909) Ogden, 1983 Basionym: Pontigulasia compressa var. flexa  Cash and Hopkinson, 1909 Diagnosis:

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Lagenodifflugia epiouxi

L. epiouxi, after Chardez, 1984 3 Lagenodifflugia epiouxi (Chardez, 1983) new comb. Basionym: Pontigulasia epiouxi Chardez, 1983 Diagnosis: Shell elongate, circular in cross-section or very

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Centropyxis lapponica

Centropyxis lapponica, after Grospietsch, 1954 Centropyxis lapponica  Grospietsch, 1954 Diagnosis: Shell nearly circular in circumference, without spines. Aperture clear square with rounded corners. Shell viewed

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Chaos spec. 6

Chaos spec., Crailoo, 2021 Chaos spec. This specimen was found in a samples from Crailoo, Netherlands. It was remarkable because of the absence of crystals.

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Bullinularia maxima

Bullinularia maxima – from Bobrov and Mazei, 2020 Bullinularia maxima Bobrov et Mazei, 2020 Diagnosis: Shell brown, opaque, elliptical in ventral view; ventral surface is

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Bullinularia macroporum

Bullinularia macroporum – from Bobrov and Mazei, 2020 Bullinularia macroporum Bobrov et Mazei, 2020 Diagnosis: Shell yellow-brownish, transparent, circular in ventral view; ventral surface is

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Nebela golemanskyi

N. golemanskyi, after Todorov, 2010 Nebela golemanskyi Todorov, 2010 Diagnosis: Shell large, colourless and pyriform, with a distinct short neck about one fourth of the

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Nebela nebeloides

N. nebeloides, after Gauthier-Lièvre and Thomas, 1958 Nebela nebeloides (Gauthier-Lièvre and Thomas, 1958) Todorov et al., 2010 Basionym: Difflugia nebeloides Gauthier-Lièvre and Thomas, 1958 Diagnosis:

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