Also known as Dragonfish, Silver Arowana, Water Monkey.
Found close to the shore in rivers and streams lurking under overhanging branches.
They feed on surface fish and bats, birds and insects catching their prey by leaping out of the water.
Length - 90cm
Depth - ?m
Widespread South America
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.
https://en.wikipedia.org/wiki/Arowana Ref: http://www.fishbase.org/summary/Osteoglossum-bicirrhosum.html