Class Hirudinea Lamarck, 1818 - leeches see Subclass Hirudinida
   Subclass Euhirudinea Lukin, 1956 - true leeches see Subclass Hirudinida
     Order Arhynchobdellida Blanchard, 1894
       Suborder Hirudiniformes Caballero, 1952
         Family Haemadipsidae Blanchard, 1893
           1 Genus Chtonobdella Grube, 1866
           2 Genus Haemadipsa Tennent, 1861