Species: Lactophrys trigonus, Buffalo trunkfish, Trunkfish trunkfish

Lactophrys trigonus (Linnaeus, 1758)

Buffalo trunkfish

Body oblong, with an obvious hump on back, thick, enclosed in a bony box formed by thickened, joined, enlarged scale plates that are usually hexagonal in shape; carapace has openings for mouth, eyes, gill slits and fins and tail, completely surrounds base of anal fin but incomplete and partly open behind base of dorsal fin, behind which there is an isolated oval plate, without spines before eyes, with a pair of spines at lower rear corner, last plates above and below tail base not prolonged as spines; mouth small, at front, lips fleshy; teeth moderate, conical, usually <15 per jaw; gill openings short, oblique slits in front of pectoral bases; no spiny dorsal, soft dorsal and anal fins at rear of carapace; no pelvic fins;  tail base slender, flexible, tail fin a fan with a rounded end; dorsal, anal and pectoral fin rays branched; lateral line inconspicuous.