Distribution: Antarctic, Atlantic, Indian, and Pacific (reported primarily off South Africa and southern Australia). Very deep-bodied and compressed. Mouth superior; protractile. Small cycloid or ctenoid scales. Body of young bear conical scutes in some parts. A single spine on pelvic fin; soft rays 5-7. Spines in dorsal fin 5-8; soft rays 29-35. Anal fin spines 2-4; soft rays 28-33.