Phylum Chordata Bateson, 1885 - chordates
   Subphylum Vertebrata Cuvier, 1812 - vertebrates
     Pisces
       Class Actinopterygii Woodward, 1891 - ray-finned fishes
         Order Siluriformes Rafinesque, 1810 - catfishes
           Family Diplomystidae Eigenmann, 1890 - diplomystid catfishes