Jack Crevalle is a type of fish species that is commonly found in saltwater regions. There are several synonyms that are used to refer to this fish, which include crevalle jack, common jack, toro, cavalla, and black-tailed trevally. These synonyms are used interchangeably based on the location and the specific sub-species of the fish. The crevalle jack is known for its high-quality meat and is a popular game fish that attracts fishing enthusiasts from around the world. It is a fast and powerful fish that can weigh up to 120 pounds, making it an exciting catch for any angler.