Rhamphochromis lucius

Rhamphochromis lucius is a species of piscivorous cichlid endemic to Lake Malawi where it prefers deep, open waters. This species can reach a length of 40 cm TL. It can also be found in the aquarium trade. FishBase treats this species as a valid species, although note that it may be a synonym of Rhamphochromis woodi but the Catalog of Fishes treats it as a synonym of Rhamphochromis esox, as does the IUCN.