Soliman I.A.F., 1974. Variations of fishes of genus Merluccius in Atlantic Ocean and Mediterranean Sea. Acta Ichthyol. Piscat. 3 (2): 29-65.
In this study, the association between morphometric, meristic and osteological characters was used comparatively. Therefore, as a result of this work, five subspecies were determined along the coasts of NE-Atlantic, Mauritania, SW- and S-Africa, and Mediterranean Sea; and one species off shores of the United States; namely: Merluccius merluccius atlanticus, M. m. senegalensis, M. m. capensis, M. m paradoxus and M. m. mediterraneus and M bilinearis.