Fishes Class Actinopterygii Woodward, 1891 - ray-finned fishes Order Cyprinodontiformes Berg, 1940 - killifishes Family Aplocheilidae Bleeker, 1860 - killifishes 1 Subfamily Aplocheilinae Bleeker, 1860 - Old World rivulines see Family Aplocheilidae Bleeker, 1860 2 Subfamily Rivulinae Hoedemann, 1962 - New World rivulines see Family Rivulidae Hoedemann, 1962