Kingdom Animalia Linnaeus, 1758 - animals Phylum Pogonophora Johansson, 1937 - beard worms see Family Siboglinidae Caullery, 1914 Order Athecanephria A.V. Ivanov, 1955 see Family Siboglinidae Caullery, 1914 Family Oligobrachiidae see Family Siboglinidae Caullery, 1914 Genus Oligobrachia Ivanov, 1957