Phylum [Choanozoa] Cavalier-Smith, 1981 Class Mesomycetozoea Ajello & Mendoza, 2000 see Class Ichthyosporea Cavalier-Smith, 1998 Order Ichthyophonida Cavalier-Smith, 1998 Genus Amoebidium Cienk. (1861) see Genus Amoebidium Cienkowski, 1861 Amoebidium parasiticum Cienkowski, 1861