Jacks Fish
Jack Crevalle
Horse Eye Jacks
African Pompanos
Bluefin Trevally
Giant Trevally
These different species of jacks all vary in appearance but have common traits like sloping foreheads and big crescent shaped tails. The IGFA lists Atlantic and Pacific jack crevalle as two different species although their markings and physical appearance are nearly identical, right down to the black spots on the pectoral fins and gill plate. The bluefin trevally is the most beautiful of the jack family and is easily identifiable with its turquoise spots and blue fins. The giant trevally and the African pompano both have visible curved lateral lines but can be distinguished by the steep forehead and dorsal fin of the African pompano.