Kingdom Animalia Linnaeus, 1758 - animals Phylum Annelida Lamarck, 1809 - segmented worms Class Hirudinida Subclass Acanthobdellida see Subclass Acanthobdellidea Livanow, 1905 Family Acanthobdellidae Livanow, 1905 Genus Acanthobdella Grube, 1850