Six of the genus representatives inhabit the waters of Eastern Atlantic Ocean, but only one, Trachinus cornutus, inhabits the South-Eastern Pacific Ocean. Three of the Atlantic species occur near the coasts of Europe. An eighth extinct species, T. minutus, is known from Oligocene-aged strata from the Carpathian Mountains, while a ninth species, also extinct, T. dracunculus, is known from middle-Miocene-aged strata from Piemonte, Italy.