Class Actinopterygii Woodward, 1891 - ray-finned fishes Subclass Neopterygii Regan, 1923 Infraclass Teleostei Müller, 1845 Supercohort Teleocephala de Pinna, 1996 Cohort Osteoglossomorpha Greenwood et al., 1966 Order Osteoglossiformes Berg, 1940 - bonytongues Family Mormyridae Bonaparte, 1831 - elephantfishes 1 Genus Gymnarchus Cuvier, 1829