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 Amoebidae Ehrenberg, 1838 Genus Amoeba Bory de St. Vincent, 1822 Amoeba leningradensis Page & Kalinina, 1984