Phylum Chordata Bateson, 1885 - chordates Subphylum Vertebrata Cuvier, 1812 - vertebrates Pisces Class Actinopterygii Woodward, 1891 - ray-finned fishes Order Stomiiformes Rosen, 1973 - dragonfishes see Order Stomiatiformes Rosen, 1973, orth. inval. Family Astronesthidae see Subfamily Astronesthinae Family Chauliodontidae see Subfamily Chauliodontinae Family Gonostomatidae - bristlemouths Family Idiacanthidae see Subfamily Idiacanthinae Family Malacosteidae see Subfamily Malacosteinae Family Melanostomiidae see Subfamily Melanostomiinae Family Phosichthyidae - lightfishes Family †Protostomiidae Arambourg, 1943 Family Sternoptychidae Rafinesque, 1815 Family Stomiidae Rosen, 1973