Blue-spotted butterfly fish. Common name: blue seal butterfly. The body is yellow, with a horizontal band passing through the eyes on the head. There are about 20 brown longitudinal lateral lines on the side of the body. There are blue patches between the longitudinal stripes near the lateral lines, which appear as it grows. The caudal peduncle has a blue ink spot, and the body is long. 12 cm. Distribution areas: South China Sea, coastal Taiwan, Indian Ocean and Pacific tropical waters.
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