The photo of Eggfish(left) and Wenfish(right). (IMAGE)

Proceedings of the National Academy of Sciences

The photo of Eggfish(left) and Wenfish(right).

Caption

The photo of Eggfish(left) and Wenfish(right). Wen goldfish has a fancy tail with dorsal fin, the classic type contained Fantails and Veiltails ("Wen"-? is also the name of the characteristic head growth on such strains as oranda and lionhead). Egg goldfish have no dorsal fin with an 'egg-shaped' body.

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Image credit: Liming Qu

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