This kind of deep-sea silverfish belongs to the order Macrostomy, the suborder Splendidus, the family Pleurophoridae, and the genus Silverfish. Its name comes from its axe-shaped body. This is a small fish that can grow up to 4 inches. But the strange thing is that the person who originally named it officially added "gigas" (giant) to the Latin name. As a result, the Chinese name did not live up to its name and was called "Giant Silver". Ax Fish".

It can survive at depths of 4,500 feet (1,372 meters) feeding on copepods and other small fish.

These fish have light-emitting devices along their entire bodies. Scientists believe that they use these light-emitting devices to signal the opposite sex during mating, and they can also use these lights to attract small fish around them when feeding. shrimp.