The mandarin dogfish, Cirrhigaleus barbifer, is the only species in this genus found in Western Australia, and represents a significant range extension and first record in Australia. Most Cirrhigaleus sharks are clearly separable from other squalid sharks by the presence of conspicuous barbels on the anterior nasal flaps. Cirrhigaleus barbifer may be distinguished from its close relative C. australis by the structure of the CO1 gene and key measurements. In addition, this is only the second record of a gravid female of C. barbifer, with pups in an advanced stage of development. New data on the reproductive biology and range of C. barbifer are included.