Tarellians, more commonly known in the Imperium of Man as Tarellian Dog-Soldiers because of their snouts and their preference for working as mercenaries for other alien races, are a minor reptilian species of xenos found throughout the galaxy, but are of little consequence to its affairs. They most often are encountered as mercenaries for the Tau Empire, particularly when Tau forces face the Imperium because of the Tarellians' ancient grudge against Mankind as a species.