[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 Naticidae Guilding, 1834 - moon snails
         Genus Cryptonatica Dall, 1892
           Cryptonatica affinis (Gmelin, 1791) - Arctic moon snail
           Cryptonatica bathybii (Friele, 1879)
           Cryptonatica operculata (Jeffreys, 1885)