Callyodon urbanus, Scopoli, 1777

Smith, J. L. B., 1959, The identity of Scarus gibbus Rüppell, 1828 and of other parrotfishes of the family Callyodontidae from the Red Sea and the western Indian Ocean, Ichthyological Bulletin of the J. L. B. Smith Institute of Ichthyology 16, pp. 265-282 : 272

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