WAmargosa River pupfish
WBlackspotted snake eel
WCarolina madtom
WClown toado
WCtenacanthus
WCtenacanthus
WCyprinodon nevadensis
WElegant wrasse
WExerpes asper
WFroghead eel
WGulf grouper
WKyphosus azureus
WLake Chala tilapia
WMoringua edwardsi
WNeoglyphidodon polyacanthus
WOrange roughy
WOrangefin madtom
WOrnate dogfish
WPangani barb
WPercina roanoka
WPseudoplatystoma reticulatum
WRoanoke logperch
WRonquilus jordani
WSakhalin stickleback
WSarato's goby
WSebastes levis
WStegastes fasciolatus
WStriped jumprock
WSturisoma panamense
WSwannanoa darter