Fishes
   Class Actinopterygii Woodward, 1891 - ray-finned fishes
     Order Syngnathiformes Berg, 1940 see Suborder Syngnathoidei
       Family Syngnathidae Günther, 1870 - pipefishes and seahorses
         1 Subfamily Syngnathinae - pipefishes
         2 Subfamily Hippocampinae - seahorses