Pisces Class Actinopterygii Woodward, 1891 - ray-finned fishes Order Ophidiiformes Rafinesque, 1810 - cusk-eels 1 Family Ophidiidae Jordan & Evermann, 1898 - cuskeels 2 Family Carapidae 3 Family Bythitidae - livebearing brotulas 4 Family Aphyonidae - aphyonids 5 Family Parabrotulidae - false brotulas