Kingdom Animalia Linnaeus, 1758 - animals Phylum Arthropoda Siebold, 1848 - arthropods Subphylum Cheliceriformes Class Pycnogonida Latreille, 1810 - pycnogonids Family Phoxichilidiidae Sars, 1891 Genus Phoxichilidium Milne-Edwards, 1840