Phylum Chordata Bateson, 1885 - chordates
   Subphylum Vertebrata Cuvier, 1812 - vertebrates
     Class Chondrichthyes Huxley, 1880 - cartilaginous fishes
       Order Squaliformes Compagno, 1973 - dogfish sharks
         Family Dalatiidae Gray, 1851 - kitefin sharks
           Genus Centroscymnus Bocage & Capello, 1864 - velvet dogfishes
             Centroscymnus coelolepis Bocage & Capello, 1864 - Portuguese shark
             Centroscymnus crepidater (Bocage & Capello, 1864) - longnose velvet dogfish see Centroselachus crepidater (Bocage & Capello, 1864)
             Centroscymnus cryptacanthus Regan, 1906 - shortnose velvet dogfish