Arawana

Found close to the shore, lurking, under overhanging branches, in rivers, and streams.
They feed on bats, birds, surface fish, and insects, catching their prey, by leaping out of the water.
South America - Amazon River basin, Rupununi and Oyapock Rivers

Valued aquarium fish although hard to keep!
The name "bonytongues" is derived from a toothed bone on the floor of the mouth, the "tongue", equipped with teeth that bite against teeth on the roof of the mouth. The arowana is a facultative air breather and can obtain oxygen from air by sucking it into its swim bladder.