Fishes Class Actinopterygii Woodward, 1891 - ray-finned fishes see Clade Actinopterygii Woodward 1891 [Moore & Near 2020] Order Cyprinodontiformes Berg, 1940 - killifishes Family Cyprinodontidae Wagner, 1828 - killifishes Subfamily Cubanichthyinae Parenti, 1981 - island pupfishes