[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 Buccinidae Rafinesque, 1815 - whelks
         Genus Colus Röding, 1798
           Colus gracilis (da Costa, 1778) - simple colus