The scales on the eyed side are ctenoid and cycloid on the blind side. The inter-orbital width is much wider in males. The upper pectoral fin rays are not prolonged. The subspecies in the Mediterranean and African coast, P. podas has 75-86 lateral line scales, with 13-20 scales making up the curved portion. Its eyed side has alight brown color, bearing darker spots. The subspecies in Madeira and the Canaries, B. p. maderensis, has 88-91 lateral line scales, with 20-21 on the lateral line curve. Its eyed side appears dark brown to dark violet and seldom spotted.