Kingdom Animalia Linnaeus, 1758 - animals
   Phylum Priapula - priapulans see Phylum Priapulida Delage & Hérouard, 1897
     Family Priapulidae Gosse, 1855
       Genus Halicryptus v. Siebold, 1849
         Halicryptus spinulosus Von Siebold, 1849