[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Pisces
     Class Osteichthyes Huxley, 1880 - bony fishes and tetrapods see Clade Osteichthyes Huxley 1880 [Moore & Near 2020]
       Order Saccopharyngiformes - sackpharynx fishes see Suborder Anguilloidei
         Family Saccopharyngidae Bleeker, 1859 - swallower eels
           Genus Saccopharynx Mitchill, 1824
             1 Saccopharynx ampullaceus (Harwood, 1827) - pelican-fish
             2 Saccopharynx harrisoni Beebe, 1932
             3 Saccopharynx hjorti Bertin, 1938
             4 Saccopharynx paucovertebratis Nielsen & Bertelsen, 1985
             5 Saccopharynx ramosus Nielsen & Bertelsen, 1985
             6 Saccopharynx thalassa Nielsen & Bertelsen, 1985
             7 Saccopharynx trilobatus Nielsen & Bertelsen, 1985