The taxon dingo always refers to the native dog found in Australia, but may at times also refer to other dogs native to peninsular and island southeast Asia and neighboring regions, such as the New Guinea singing dog (halstromi). It has variously been considered a species of the dog genus (Canis dingo), a subspecies of gray wolf (Canis lupus dingo), and an invalid taxon or taxonomically synonymous with Canis lupus familiaris.