Class Lobosea (Carpenter, 1861) Cavalier-Smith, 1993 see Subphylum Lobosa Carpenter, 1861 Subclass Gymnamoebia (Haeckel, 1862) Cavalier-Smith, 1993 see [unranked] Gymnamoebae Order Euamoebida Lepşi, 1960 Family Hartmannellidae Volkonsky, 1931 Genus Saccamoeba Frenzel, 1892 Saccamoeba wellneri Siemensma, 1987