Fishes
   Class Elasmobranchii Bonaparte, 1838 see Subclass Elasmobranchii Bonaparte, 1838
     Order Heterodontiformes Compagno, 1973 - bullhead sharks
       Family Heterodontidae Gray, 1851 - bullhead and horn sharks
         1 Genus Centracion Gray, 1831
         2 Genus Cestracion Oken, 1817, nom. illeg. see Genus Heterodontus Blainville, 1816
         3 Genus Gyropleurodus Gill, 1862
         4 Genus Heterodontus Blainville, 1816
         5 Genus Molochophrys Whitley, 1931
         6 Genus Tropidodus Gill, 1863
         7 Genus Wuia Fowler, 1934