Class Lobosea (Carpenter, 1861) Cavalier-Smith, 1993 see Subphylum Lobosa Carpenter, 1861
   Subclass Gymnamoebia (Haeckel, 1862) Cavalier-Smith, 1993 see [unranked] Gymnamoebae
     Order Leptomyxida Pussard & Pons, 1976
       Suborder Rhizoflabellina Page, 1987 see Order Leptomyxida Pussard & Pons, 1976
         Family Leptomyxidae Pussard & Pons, 1976
           1 Genus Rhizamoeba F.C. Page, 1972
           2 Genus Leptomyxa Goodey, 1914