The Atlantic Wolf fish is a large bottom-dwelling predatory marine fish. Adults can weigh almost 20 kilograms and reach a length of 150 centimeters. The atlantic Wolf fish has a heavy head. a blunt snout, its profile is rounded, and it lacks pelvic fins. Like other Wolf fish, it has large canine-like teeth in the front of its jaws with flattened, grinding teeth in behind. The color of Atlantic Wolf fish varies with its surroundings, from slate blue to dull olive green to purplish brown. Individuals of this species also bare nine to thirteen darkly colored transverse bars on their bodies.