"Gnathobdellae" . . . . "The Hirudiniformes are one of the currently-accepted suborders of the proboscisless leeches (Arhynchobdellida). Their most well-known member is the European Medical Leech, Hirudo medicinalis, and indeed most of the blood-sucking \"worms\" as which leeches are generally perceived belong to this group."@en . . "Gnathobdellida (Vaillant, 1890)" . . . . "Hirudiniformes"@en . . "(but see text)" . .