Phylum Chordata Bateson, 1885 - chordates Subphylum Vertebrata Cuvier, 1812 - vertebrates Pisces Class Actinopterygii Woodward, 1891 - ray-finned fishes Order Cyprinodontiformes Berg, 1940 - killifishes Family Anablepidae Garman, 1895 - four-eyed fish