[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 Synaphobranchidae Johnson, 1862 - cutthroat eels
           Genus Histiobranchus Gill, 1883
             Histiobranchus bathybius (Günther, 1877) - deep-water arrowtooth eel