The ten rare species of swallowfish include Egyptian swallowfish, mandarin duck swallowfish, tricolor swallowfish, marble swallowfish, gilt-head swallowfish, red-eyed swallowfish, diamond swallowfish and panda swallowfish.

Plataxteira (scientific name: Plataxteira), also known as angel fish and angel fish. The body of the fish is diamond-shaped, extremely flat on the sides, the trailing edge of the caudal fin is straight, the dorsal fin and anal fin rays are extended backward, symmetrical up and down, like an open sail.

The pelvic fin is extra long and filamentous. From the side, it looks like a swallow flying in the air, so it is also called a swallow fish. Distributed in the Indian Ocean, the east coast of Africa, the Red Sea, east to Australia, north to Japan, the South China Sea, Taiwan Strait and other waters, it is a warm-water pelagic fish. They mostly live under floating objects on the sea surface. The type locality of this species is Lohaja.