Definition
*Gempylus* is a genus of snake mackerels belonging to the family Gempylidae. The most well-known species in this genus is *Gempylus serpens*, commonly called the snake mackerel. Fish in this genus are characterized by their elongated, slender bodies and sharp teeth. They are predatory, feeding on smaller fish and invertebrates in deep-sea environments. These fish are known to inhabit tropical and subtropical waters around the world. *Gempylus* is an important genus for understanding the diversity of deep-sea predatory fishes.