Abstract
Four new deep water species of volutid genera Amoria, Notovoluta, Notopeplum ,and Volutoconus are described from the central west coast of Western Australia. Another species of Notovoluta, previously described as a south eastenn Australian Miocene fossil, is recorded living on the outer part of the continental shelf, also off the central west coast of Western Australia. The relationships| and temporal and geographic distributions of all five species are discussed.
Notovoluta occidua Cotton, 1946 is removed from synonymy with N. verconis Tate , 1892; but Notovoluta rossiteri (Brazier, 1898) is considered to be a junior subjective synonym of N. kreuslerae Angas, 1865.