Phylum Mollusca Linnaeus, 1758 - molluscs
Count: [*†*] 8c;49o;641f;6099g; †2f;162g [24 Jan 2022]
   Class Gastropoda Cuvier, 1795 - snails and slugs
  Count: [*] 21o;416f;4650g; †136g [13 Dec 2021]
     Subclass Prosobranchia Milne-Edwards, 1848 - prosobranchs see Class Gastropoda Cuvier, 1795
    Count: [*†*] 6o;172f;2489g; †135g [14 Oct 2021]
       Order Caenogastropoda Cox, 1960 see Superorder Caenogastropoda Cox, 1960
      Count: [*†*] 110f;1268g; †39g [17 Sep 2021]
         Suborder Architaenioglossa Haller, 1890
        Count: [*†*] 28f;234g; †2g [18 Jul 2021]
           Superfamily Cerithioidea Fleming, 1822
          Count: [*†*] 21f;150g; †2g [18 Jul 2021]
             Family Litiopidae Gray, 1847
            Count: [*] 3g [15 Jul 2021]
               Genus Obstopalia Iredale, 1936
              Count: -