Xyrichtys trivittatus is a species of razorfish

Xyrichtys

Xyrichtys is a genus of wrasses found in sandy-bottomed ocean habitats throughout the world. They are commonly known as razorfishes as they are very laterally compressed with a sharp bony ridge at the front of the head...

. It is currently only known from Hong Kong

Hong Kong

Hong Kong is one of two Special Administrative Regions of the People's Republic of China , the other being Macau. A city-state situated on China's south coast and enclosed by the Pearl River Delta and South China Sea, it is renowned for its expansive skyline and deep natural harbour...

 and Taiwan

Taiwan

Taiwan , also known, especially in the past, as Formosa , is the largest island of the same-named island group of East Asia in the western Pacific Ocean and located off the southeastern coast of mainland China. The island forms over 99% of the current territory of the Republic of China following...

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This fish reaches a total length of around 30 cm. It is deep bodied and extremely laterally compressed as in all members of its genus. It is distinctively coloured, generally pale yellow with three broad dark vertical bars on its body. A further diagnostic trait is the presence of a deep notch between the first two spines of the dorsal fin

Dorsal fin

A dorsal fin is a fin located on the backs of various unrelated marine and freshwater vertebrates, including most fishes, marine mammals , and the ichthyosaurs...

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