The Viruses
   The RNA Viruses
     The dsRNA Viruses
       Family Hypoviridae [monotypic]
         Genus Hypovirus
           1 Cryphonectria hypovirus 1ᵀ
           2 Cryphonectria hypovirus 2
           3 Cryphonectria hypovirus 3
           4 Cryphonectria hypovirus 4