Paramoebidae

Belongs within: Amoebozoa.

The Paramoebidae are a family of flattened amoebae that produce finger-like anterior subpseudopodia. At least some paramoebids host minute endosymbionts close to the nucleus that were once mistaken for organelles, called parasomes.

Characters (from Microworld): Locomotive form with digitiform, blunt subpseudopodia frequently extending from the anterior hyaloplasm; temporarily lacking in some species. Floating form often with radiating pseudopodia. Uninucleate with central nucleolus. Surface layer complex, highly differentiated as a cuticle or as boat-shaped microscales discernable at the TEM level. Pseudopodia without a filamentous core.

<==Paramoebidae
    |  i. s.: Janickina Chatton 1953DF03
    |           |--J. chaetognathi (Grassi 1881)DF03
    |           `--J. pigmentifera (Grassi 1881)DF03
    |--CuneaC-SCL16
    |    |--C. profundataC-SCL16
    |    `--C. thuwalaC-SCL16
    `--+--Pseudoparamoeba pageiC-SCL16
       `--+--KorotnevellaC-SCL16
          |    |--K. hemistylolepisSN05
          |    `--+--K. monacantholepisKB05
          |       `--K. stellaSN05
          `--+--Neoparamoeba Page 1987DF03
             |    |--+--N. aestuarinaDF03 [=Paramoeba aestuarinaC-SCL16]
             |    |  |    |--N. a. aestuarinaDFP08
             |    |  |    `--N. a. antarcticaDFP08
             |    |  `--N. pemaquidensis (Page 1970)DF03
             |    `--+--N. branchiphilaSN05
             |       `--N. perurans Young et al. 2007DFP08
             `--Paramoeba Schaudinn 1896C-SCL16, DF03
                  |--P. atlanticaC-SCL16
                  |--P. eilhardi Schaudinn 1896DF03
                  |--P. invadens Jones 1985DF03
                  `--P. perniciosa Sprague, Beckett & Sawyer 1969DF03

*Type species of generic name indicated

References

[C-SCL16] Cavalier-Smith, T., E. E. Chao & R. Lewis. 2016. 187-gene phylogeny of protozoan phylum Amoebozoa reveals a new class (Cutosea) of deep-branching, ultrastructurally unique, enveloped marine Lobosa and clarifies amoeba evolution. Molecular Phylogenetics and Evolution 99: 275–296.

[DF03] Dyková, I., I. Fiala, J. Lom & J. Lukeš. 2003. Perkinsiella amoebae-like endosymbionts of Neoparamoeba spp., relatives of the kinetoplastid Ichthyobodo. European Journal of Protistology 39 (1): 37–52.

[DFP08] Dyková, I., I. Fiala & H. Pecková. 2008. Neoparamoeba spp. and their eukaryotic endosymbionts similar to Perkinsela amoebae (Hollande, 1980): coevolution demonstrated by SSU rRNA gene phylogenies. European Journal of Protistology 44 (4): 269–277.

[KB05] Kudryavtsev, A., D. Bernhard, M. Schlegel, E. E-Y. Chao & T. Cavalier-Smith. 2005. 18S ribosomal RNA gene sequences of Cochliopodium (Himatismenida) and the phylogeny of Amoebozoa. Protist 156: 215–224.

[SN05] Smirnov, A., E. Nassonova, C. Berney, J. Fahrni, I. Bolivar & J. Pawlowski. 2005. Molecular phylogeny and classification of the lobose amoebae. Protist 156: 129–142.