Yes According to the detailed information of the yellow flag fish, the yellow flag fish has a typical streamlined body, with a smooth body surface, a long and sharp upper jaw, a small fin on the back, a flat mouth and no gills and ventral fins. Yellow swordfish, also known as yellow diamond fish, has a slender, streamlined body, a tapered head, a long snout, a large mouth crack, small eyes and a beak-shaped jaw. Because its head and cheeks are all brass, people call it "yellow flag fish" or "copper head fish"