[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Phylum Mollusca Linnaeus, 1758 - molluscs
     Class Gastropoda Cuvier, 1795 - snails and slugs
       Family Cerithiidae Fleming, 1822 - ceriths
         Genus Bittium Gray, 1847
           Bittium depauperatum Watson, 1897
           Bittium incile Watson, 1897
           Bittium lacteum (Philippi, 1836)
           Bittium latreillii (Payraudeau, 1826)
           Bittium proteum (Jousseaume, 1930)
           Bittium reticulatum (da Costa, 1778)
           Bittium simplex (Jeffreys, 1867)
           Bittium submamillatum (de Rayneval & Ponzi, 1854)
           Bittium watsoni (Jeffreys, 1885)