Introduction:
Swallow fish (scientific name: Platax teira), also known as angelfish, angelfish. The fish is diamond-shaped and extremely flat, with the trailing edge of the caudal fin straight, and the dorsal fin and gluteal fin extending backward, symmetrical up and down, like an open sail. The ventral fin is long and filiform. From the side, it looks like a swallow flying in the air, so it is also called swallow fish. Distributed in Indian Ocean, East Coast of Africa, Red Sea, East Australia, North Japan, South China Sea of China and Strait of Taiwan Province Province, it belongs to warm pelagic fish. Most of them live under floating objects on the sea surface. This species of type species is in Lohaga.
Morphological characteristics:
Angel fish, also known as swallow fish, angel fish, cherub fish and pinfish, is a kind of Lycoris, native to Guyana and Brazil in South America. The length is 12- 15cm, and the height can reach 15-20cm. The head is small and the tip is flat and rhombic. Both dorsal fin and anal fin are very big, as tall and straight as a spinnaker, so they are called small fin sail fish. From the side, the angelfish swims like a swallow, so the angelfish is a swallow fish. The ventral fin has evolved into tentacles, white and soft, as long as tassels. The caudal stalk is short, the trailing edge of caudal fin is straight and the upper and lower ends are slightly longer. The pectoral fin is colorless and transparent, and the body surface color is silvery white with yellow, the abdomen is silvery white, and the back is light golden yellow. There are four thick black lines on its side, the first one passes through the orbit, the second one is at the front edge of dorsal fin and the base of gluteal fin, the third one is from dorsal fin to gluteal fin, and the fourth one is at the base of caudal stalk. The iris of the outer ring of black eyes is red with a black velvet belt on it.