Kingdom Animalia Linnaeus, 1758 - animals
   Phylum Craniata Linnaeus, 1758 see Subphylum Vertebrata Cuvier, 1812
     Pisces
       Class Actinopterygii Woodward, 1891 - ray-finned fishes
         Order Percopsiformes Berg, 1937 - trout-perches
           1 Family Percopsidae Regan, 1911 - trout-perches
           2 Family Aphredoderidae - pirate perches
           3 Family Amblyopsidae - cavefishes