The Reavers are a race of aquatic monsters from Ravenloft, the gothic horror themed setting of Dungeons & Dragons.
They are visually inspired by the Universal movie monster The Gill-Man, though they are described as more malevolent than the Gillman.
The Reavers lives in the seas near the western shore of the Demiplane of dread, where they attack swimmers, fishermen and small ships. They feed primarily on the flesh of land dwelling creatures, including humans and demihumans.
Reavers are very territorial and tend to attack and ravage any settlement near the sea that they percieve as an intrusion.
Reavers usually live in schools but sometimes an individual reaver is exiled from the school for one reason or another. These outcasts usually go to live in lagoons, rivers or lakes.