Coris ballieui, commonly known as the yellowtail coris, is a striking marine fish characterized by its elongated body, vivid coloration transitioning from a reddish-brown in juveniles to a more subdued greenish-blue in adults, with a distinctive yellow tail. It inhabits coral reefs in the central Pacific, particularly around Hawaii. Typically reaching 14 inches in length, it displays active foraging behavior, often seen hunting invertebrates among the substrate.
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