Kingdom Animalia Linnaeus, 1758 - animals Phylum Arthropoda Siebold, 1848 - arthropods Subphylum Cheliceriformes Class Pycnogonida Latreille, 1810 - pycnogonids Family Callipallenidae Hilton, 1942 Genus Callipallene Flynn, 1929 Genus Pallenopsis Wilson, 1881