WIsopoda
WAncinidae
WAntarcturidae
WArmadilloniscus
WArmadilloniscus ellipticus
WAsellota
WCubaris
WCubaris murina
WCylisticidaeWCylisticusWCylisticus convexusWCymothoida
WDetoWDetonidae
WEpicaridea
WEubelidae
WExosphaeroma laeviusculum
WFlabellifera
WGlyptidotea
WGribble
WHaplophthalmus danicus
WLigia occidentalis
WLigia pallasii
WLigidium elrodii
WLimnoria lignorumWGribble
WLittorophiloscia
WMacrostylidae
WWoodlouse
WOrthione griffenis
WPhreatoicidaeWPhreatoicidea
WPlatyarthrus
WSphaeromatidea
WValvifera
WVenezillo parvusWWoodlouse