Acreichthys radiatus, commonly known as the radial filefish, is a species of demersal marine fish which belongs to the family Monacanthidae widespread throughout the tropical waters of the western Pacific Ocean, from Ryukyu Islands, the Philippines,the oriental part of Indonesia, the Papua New Guinea, the north east area of Australia, and New Caledonia. It's a small size fish that can reach a maximum size of 7 cm length.