In some classifications, the family is split into two subfamilies, with Mustelus, Scylliogaleus, and Triakis in the subfamily Triakinae, and the remaining genera in the subfamily Galeorhininae.
Based on specific classification systems, the family is split into two subgroups: Triakinae, which includes Mustelus, Scylliogaleus, and Triakis, and the remaining genera are categorized as belonging to Galeorhininae.