WEptatretus
WEptatretus minor
WEudontomyzon
WEudontomyzon stankokaramani
WFar Eastern brook lamprey
WGill slit
WEptatretus polytrema
WGulf hagfish
WInshore hagfish
WSouthern hagfish
WHyperoartia
WIchthyomyzon
WLampetra
WLombardy lamprey
WMordacia
WMordacia lapicida
WMyxine
WNorthern lampreys
WTFM (piscicide)
WUkrainian brook lamprey
WWestern brook lamprey