During locomotion most Tubulinea have a roughly cylindrical form or produce numerous cylindrical pseudopods. Each cylinder advances by a single central stream ofcytoplasm, granular in appearance, and has no subpseudopodia. This distinguishes them from other amoeboid groups, although in some members this is not the normal type of locomotion.
This class was anticipated by some biologists such as Jahn, who grouped all amoebae with granular pseudopodia together,[1] but most split the lobose amoebae into testateTestacealobosia and nakedGymnamoebia. These latter arepolyphyletic, but molecular trees by Bolivaret al.[2] identified a core monophyletic subgroup. Subsequent studies showed the testate lobose amoebae belong to the same group, which was thus renamed Loboseasensu stricto[3] or Tubulinea.[4]
^Cavalier-Smith, T.; Chao, E.-Y; Oates, B. (2004). "Molecular phylogeny of the Amoebozoa and evolutionary significance of the unikontPhalansterium".European Journal of Protistology.40:21–48.doi:10.1016/j.ejop.2003.10.001.
^Smirnov, A.V.; Nassonova, E.S.; Berney, C.; Fahrni, J.; Bolivar, I. & Pawlowski, J. (2005). "Molecular phylogeny and classification of the lobose amoebae".Protist.156 (2):129–142.doi:10.1016/j.protis.2005.06.002.PMID16171181.
