If the carp is divided according to the place of production, it can be divided into offshore carp and ocean carp. There are mainly Chinese sea squid, Chinese squid, sword tip squid, Kobe squid, and Pacific Turtle.
It belongs to more than a dozen families and is characterized by large mouth, large eyes, and light emitters in one or more parts of the body. Light emitters are used both to trap prey and to lure mates.
The body is thick and flat and is spindle-shaped. It is generally 20 to 40 cm in length and 150 to 400 grams in weight. The head is large, the tip of the tip is conical, the eye is large, the mouth is large