Kingdom Fungi R.T.Moore (1980) - fungi
   Phylum Chytridiomycota Doweld (2001)
     Class Chytridiomycetes Moebius (1929)
       Genus Ichthyochytrium Plehn (1920), incertae sedis [monotypic]
         1 Ichthyochytrium vulgareᵀ Plehn (1920)