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.
The family is divided into two subfamilies based on certain classifications: Triakinae, containing Mustelus, Scylliogaleus, and Triakis, while the rest belong to Galeorhininae.