Polyopisthocotylea

Polyopisthocotylea is a subclass of parasitic flatworms in the class Monogenea.

==Classification== There are only two subclasses in the class Monogenea: Monopisthocotylea. The name means "a single posterior sucker" - the attachment organ (the haptor) is simple. Polyopisthocotylea. The name means "several posterior suckers" - the attachment organ (the haptor) is complex, with several clamps or suckers.