Subclass Euhirudinea Lukin, 1956 - true leeches see Subclass Hirudinida
Ref: 1995
   Order Arhynchobdellida Blanchard, 1894
  Ref: 1995
     1 Family Americobdellidae
    Ref: 1995
     2 Suborder Erpobdelliformes
    Ref: 1995
     3 Suborder Hirudiniformes Caballero, 1952
    Ref: 1995