Wikipedia
Ctenoluciidae
The Ctenoluciidae (meaning "comb light family"), also known as pike-characins, are a small family of freshwater fishes from Panama and South America.
They have elongated, pike-like bodies, and several sharp and conical teeth. They are relatively large (up to in length), predatory fish.
Some of these fish, such as Ctenolucius hujeta, enter the aquarium fish hobby, often being labeled a "freshwater barracuda" or "freshwater needlefish", descriptions of fish that are both unrelated to members of this family.