Subclass Euhirudinea Lukin, 1956 - true leeches see Subclass Hirudinida Order Arhynchobdellida Blanchard, 1894 Suborder Hirudiniformes Caballero, 1952 Family Hirudinidae Whitman, 1886 Subfamily Semiscolecinae (Scriban & Autrum, 1934)