Caranx Crysos, commonly known as yellow jack, is a type of fish that belongs to the same family as tuna and mackerel. This fish, which is commonly caught for sport and food, is also known by a variety of synonyms. Some of the most commonly used terms to refer to Caranx Crysos include bar jack, yellow crevalle, and green crevalle. This fish is also commonly referred to as a yellow fin or green fin, depending on the individual's preference. Regardless of the name used, Caranx Crysos is a popular and versatile species of fish that is enjoyed by many anglers and seafood lovers alike.