Diāo , also known as hunchback snapper , is a genus of pyrophea in the family Phylloscopidae. It is widely distributed in the Indo-Western Pacific sea area, inhabiting coral reef areas or mixed reef and sand areas, and often gathers in large groups to cruise between reefs. The general depth of its habitat is more than 60 meters. Feeds on fish, crustaceans, invertebrates, etc. Found in China in the South China Sea and Taiwan, it is a common edible fish in coastal areas, and it is suitable for fried or braised pork.
The body is 30–50 cm long, oval and tall, with a steep and straight back above the head, which distinguishes it from other species in this genus. The eye space is flat, the posterior margin of the anterior gill cap is finely serrated, and the upper and lower jaws are lined with fine teeth. The body is covered with medium-sized ctenophores. The pectoral fin is long, with the end reaching the beginning of the fin; The caudal fin is forked. Adults are uniformly reddish-grey in color, and the ends of the caudal fins, dorsal fins, and fins are darker in color and reddish-black. Juveniles are pale grey in colour with many thin bands and a yellow tail fin.
The phonopterae is a family of 5 subfamily and 21 genera and 125 species in 5 subfamily around the world, which are benthic food fish of great economic value. It is widely distributed in the temperate tropical waters of the Indian Ocean and the Pacific Ocean, and its habitat depth range is very large. The family is generally nocturnal, mostly clustered around the reef during the day and scattered on sandy ground at night to feed. The body is elongated and spindle-shaped or oblong-oval, and many species are attractive in color.