Esociformes

Esociformes are a small order of ray-finned fish (the Actinopterygii). There are two families, the Umbridae (mudminnows) and the Esocidae (pikes).
The Esocidae are named after the pike genus "Esox". One highly successful species is "Esox lucius" or northern pike. 
The Esociform fishes live in freshwater, in North America and northern Eurasia.
The order is very similar to the Salmonidae.