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 Opisthobranchia Milne-Edwards, 1848 - opisthobranchs see Order Opisthobranchia Milne-Edwards, 1848
    Count: [*] 8o;119f;463g [31 Oct 2021]
       Order Cephalaspidea Fischer, 1883
      Count: [*] 19f;96g [21 Oct 2021]
         Superfamily Acteonoidea d'Orbigny, 1843
        Count: [*] 13f;77g [20 Oct 2021]
           Family Acteonidae d'Orbigny, 1843, nom. protect. - bubble shells
          Count: [*] 19g [19 Oct 2021]
             Subfamily Acteoninae d'Orbigny, 1843
            Count: [*] 18g [19 Oct 2021]
               Genus Pseudacteon Grassé (ed.), 1968, orth. inval. see Genus Pseudactaeon J. Thiele, 1925
              Count: -