WPolyopisthocotylea
WBychowskicotylidae
WChimaericola leptogaster
WChimaericolidae
WDiplozoidae
WDiplozoon paradoxum
WGastrocotylidae
WHaptor
WLethacotyle fijiensis
WMazocraeidea
WMicrocotylidae
WParadiplozoon
WParadiplozoon hemiculteri
WParadiplozoon yunnanense
WPolystoma integerrimum
WProtomicrocotylidae