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 Neotaenioglossa Haller, 1882 see Order Sorbeoconcha Ponder & Lindberg, 1997
        Count: [*†*] 36f;328g; †33g [10 Sep 2021]
           Superfamily Cassoidea Latreille, 1825
          Count: [*] 7f;37g [10 Sep 2021]
             Family Cassidae P.A. Latreille, 1825 - helmet snails see Subfamily Cassinae Latreille, 1825
            Count: [*] 12g [9 Sep 2021]
               Subfamily Cassinae Latreille, 1825
              Count: [*] 5g [9 Sep 2021]
                 Genus Cypraecassis Stutchbury, 1837
                Count: -
                   Subgenus Levenia Gray, 1847
                  Count: -