[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Pisces
     Class Osteichthyes Huxley, 1880 - bony fishes see [unranked] Euteleostomi
       Order Anguilliformes Rafinesque, 1810 - eels
         Family Ophichthidae Günther, 1870 - snake eels and worm eels
           Genus Ophichthus Ahl, 1789
             1 Ophichthus ophis (C. Linnaeus, 1758) - spotted snake eel
             2 Ophichthus rufus (Rafinesque, 1810) - rufus snake eel