Superphylum Deuterostomia Grobben, 1908 - deuterostomes see Infrakingdom Deuterostomia Grobben, 1908
   Phylum Chordata Bateson, 1885 - chordates
     Subphylum Craniata auct. see Subphylum Vertebrata Cuvier, 1812
       Vertebrata (Lamarck, 1801) - vertebrates see Subphylum Vertebrata Cuvier, 1812
         Myopterygii - myopterygians
           Superclass Gnathostomata Gegenbaur, 1874 - jawed vertebrates
             Grade Teleostomi Bonaparte, 1836
               Euteleostomi - bony vertebrates
                 Class Actinopterygii Woodward, 1891 - ray-finned fishes
                   Subclass Neopterygii Regan, 1923
                     Division Teleostei Müller, 1845 see Infraclass Teleostei Müller, 1845
                       Elopocephala see Supercohort Teleocephala de Pinna, 1996
                         Subdivision Elopomorpha Greenwood et al., 1966 see Cohort Elopomorpha Greenwood et al., 1966
                           Order Anguilliformes Rafinesque, 1810 - eels
                             Suborder Congroidei (Regan, 1909)
                               Family Congridae Kaup, 1856 - conger eels
                                 Subfamily Congrinae
                                   01 Genus Acromycter Smith & Kanazawa, 1977
                                   02 Genus Conger Bosc, 1817
                                   03 Genus Gavialiceps Alcock, 1889
                                   04 Genus Gnathophis Kaup, 1860
                                   05 Genus Hildebrandia Jordan & Evermann, 1927 see Genus Rhynchoconger Jordan & Hubbs, 1925
                                   06 Genus Lumiconger Castle & Paxton, 1984
                                   07 Genus Macrocephenchelys Fowler, 1934
                                   08 Genus Rhechias Jordan, 1921
                                   09 Genus Rhynchoconger Jordan & Hubbs, 1925
                                   10 Genus Uroconger Kaup, 1856
                                   11 Genus Xenomystax Gilbert, 1891