Phylum Chordata Bateson, 1885 - chordates
   Subphylum Vertebrata Cuvier, 1812 - vertebrates
     Superclass Pisces Linnaeus, 1758 - fishes
       Osteichthyes Huxley, 1880 - bony fishes see [unranked] Euteleostomi
         Family Muraenidae Rafinesque, 1815 - morays
           01 Genus Echidna Forster, 1788
           02 Genus Enchelycore Kaup, 1856
           03 Genus Enchelynassa Kaup, 1855
           04 Genus Gymnomuraena Lacepède, 1803
           05 Genus Strophidon McClelland, 1844
           06 Genus Rhinomuraena Garman, 1888
           07 Genus Gymnothorax Bloch, 1795
           08 Genus Siderea Kaup, 1856
           09 Genus Pseudechidna Bleeker, 1863
           10 Genus Uropterygius Rüppell, 1838
           11 Genus Scuticaria Jordan & Snyder, 1901