WAlashan ground squirrel
WAllen's chipmunk
WCalifornia chipmunk
WCallospermophilus
WCaucasian Mountain ground squirrel
WIctidomys
WMenzbier's marmot
WMerriam's chipmunk
WNeotamias
WNotocitellus
WOtospermophilus
WPère David's rock squirrel
WPiute ground squirrel
WRelict ground squirrel
WSciurotamias
WSierra Madre ground squirrel
WUrocitellus
WWashington ground squirrel
WWhite-tailed prairie dog
WWyoming ground squirrel
WXerospermophilus
WYellow ground squirrel