Phylum [Choanozoa] Cavalier-Smith, 1981 Class Mesomycetozoea Ajello & Mendoza, 2000 see Class Ichthyosporea Cavalier-Smith, 1998 Order Ichthyophonida Cavalier-Smith, 1998 Genus Ichthyophonus Plehn & Mulsow, 1911 Ichthyophonus hoferi Plehn & Mulsow, 1911