The Lionhead Goldfish is by far the most popular and well known of the dorsal-less goldfish. The lack of a stabilizing dorsal fin is a trait that is also seen in the Bubble Eye and the Celestial Eye Goldfish. Unlike the Common Goldfish and the Shubunkins, which have a long, slender body, the Lionhead is also one of the more rounded or egg-shaped fancy goldfish.
This goldfish was bred in China to develop a "hood" that depicts the image of the mythical Chinese lion-dog. The distinctive raspberry or lion's mane appearance of the Chinese Lionhead Goldfish has led to its common name 'Lionhead' Goldfish. The amount of head growth differs for each individual fish. For some, the broad head, except for its eyes, mouth and nostrils, can become completely covered with the fleshy growth, which can sometimes even impede its vision. Other Lionhead Goldfish will develop hardly any head growth at all.