Among the fishermen working on the ocean, there is a legend that in the depths of the ocean inhabits the "messenger of the Dragon Palace", who is impossible to catch. If someone does not heed the advice to catch them, it will make the gods angry and send down earth-shaking heavenly punishments. Legends are of course legends, but this "messenger of the Dragon Palace" does exist. It's the royal stripe fish.
The royal striped fish, also known as the "White Dragon King", "Sea Dragon King", and "Dragon Palace Messenger", is a species of the Royal Belt Fish genus in the Family Royal Banded Fish (there are two species under its genus, and one is the Le-style Royal Ribbon Fish). This fish is the longest bony fish in the world, generally about 3 meters long, up to 11 meters long, and the maximum weight reaches 272 kg.
The body of the kingfish is flattened and slender, and resembles a large banded fish, which is also the origin of its name (it is not the same family as the belt fish). The fish is scaleless and covered with knotted protrusions. The head is small, the mouth is prominent, and there are no obviously exposed teeth in the mouth. The dorsal fin has an elongated base that extends from above the eye to the end of the tail, with the 5 to 6 dorsal fins at the front often filamentous. The caudal fin of the royal band is degenerate, the fin is missing, and the ventral fin becomes a whip. It is silvery-white throughout, with wavy or spotted stripes of varying sizes, most of which are dark.
The kingfish mainly inhabits the warm waters of the Pacific Ocean or the Atlantic Ocean, it lurks in the deep sea of 200-1000 meters for many years, mainly hunting a variety of small and medium-sized fish, squid, krill, crabs and so on. Its swimming posture is very special, mainly floating on the bottom of the sea in a head-to-tail down posture, and when the prey passes by the mouth, it rushes to the prey like a spring.
However, regarding the royal ribbon fish, people are most impressed no matter where it is, as long as the fish is caught, there is a high probability that an earthquake will occur there, so it is also called "Devil's Messenger" and "Earthquake Fish". However, the connection between this is still unknown to the scientific community. It can only be roughly speculated that it is related to the impact of geological changes on the seabed affecting its habitat. Hopefully, one day in the future, we can crack the mystery.