tilefish

n. (Zool.) A large, edible, deep-water food fish (Lopholatilus chamaeleonticeps) more or less thickly covered with large, round, yellow spots. [ 1913 Webster ]

☞ It was discovered off the Eastern coast of the United States in 1880, and was abundant in 1881, but is believed to have become extinct in 1882. [ 1913 Webster ]