Genus: Hemicaranx, Bluntnose Jack, Jacks, Scads
D1 VII
D & A: no finlets behind

both jaws: 1 row comblike teeth
pectorals > head
LL: straight part with scutes
HEMICARANX
JACKS, SCADS
Body moderately compressed in adult; both jaws with a comb-like single row of small teeth; no papillae on edge of shoulder immediately after gill chamber; dorsal fin VIII; no finlets behind dorsal and anal fins; pectoral fins longer than head; tail base slender; tail strongly forked; no branch of lateral line along besides base of dorsal fin; straight rear part (but not curved front part) of lateral line with well developed scutes (large, hard, spiny scales); most of body with small but easily visible scales.
An Atlantic and eastern Pacific genus with 4 species, 1 West Atlantic species in our area.