WAmphionides
WAnaspidacea
WAnostraca
WBathynellacea
WCephalocarida
WCalanoida
WCladocera
WCumacea
WClam shrimp
WCyclida
WCyclopoida
WDecapoda
WKrill
WGelyella
WHarpacticoida
WHymenocaris
WLeptostraca
WLophogastrida
WMictacea
WMyodocopida
WMysida
WRemipedia
WGoose barnacle
WPlatycopiidae
WPorocephalidaWClam shrimp
WThermosbaenacea