Phylum Mollusca Linnaeus, 1758 - molluscs
   Class Gastropoda Cuvier, 1795 - snails and slugs
     Subclass Prosobranchia Milne-Edwards, 1848 - prosobranchs see Class Gastropoda Cuvier, 1795
       Order Neogastropoda Wenz, 1938 see Suborder Neogastropoda Wenz, 1938
         Suborder Stenoglossa Bouvier, 1887
           Superfamily Muricoidea Rafinesque, 1815
             Family Nassariidae Iredale, 1916 (1835) - mud snails
               1 Subfamily Nassariinae Iredale, 1916 (1835)
               2 Subfamily Cylleninae Bellardi, 1882 [monotypic]
               3 Subfamily Dorsaninae Cossmann, 1901
               4 Subfamily Bulliinae Allmon, 1990
               5 Genus Fluviodorsum Boettger, 1885, incertae sedis
               6 Genus Austrocominella Ihering, 1907, incertae sedis
               7 Genus †Ancillopsis Conrad, 1865, incertae sedis
               8 Genus Ilyanassa Stimpson, 1865, incertae sedis
               9 Genus Adinus Adams, 1853, incertae sedis