Hoser 2013. African Adders (Bitis Gray, 1842), reviewed, including, two new subgenera, five new species of Puff Adder, all formerly Bitis arietans (Merrem, 1820) subspecific division of Bitis caudalis (Smith, 1839) and division of the Berg Adders Bitis atropos (Linnaeus, 1758) (Serpentes: Viperidae: Bitisini). Australasian Journal of Herpetology, 19, 10 July 2013: 3-24