Kingdom Animalia Linnaeus, 1758 - animals
   Phylum Craniata Linnaeus, 1758 see Subphylum Vertebrata Cuvier, 1812
     Pisces
       Class Actinopterygii Woodward, 1891 - ray-finned fishes
         Order Syngnathiformes Berg, 1940 see Suborder Syngnathoidei
           1 Family Aulostomidae Rafinesque, 1815 - trumpetfishes
           2 Family Fistulariidae - cornetfishes
           3 Family Centriscidae Rafinesque, 1826
           4 Family Solenostomidae - ghost pipefishes
           5 Family Syngnathidae Günther, 1870 - pipefishes and seahorses