Pegasus, a genus of small fishes of uncertain affinities. The body is covered with bony plates, the pectoral fins are broad and horizontal, the upper part of the snout is prolonged beyond the mouth, which is toothless. Four species are known: P. draconis, from the Indian Ocean; P. volans, often put inside Chinese insect-boxes; P. natans and P. lanceifer, from Chinese and Australian coasts.