Subspecies and Distribution. T.m.mazamaMerriam,1897—CascadeRange,fromCOregonthroughNCalifor- nia,USA. T.m.couchiGoldman,1939—vicinityofShelton,MasonCounty,Washington,USA. T.m.glacialisDalquest&Scheffer,1942—RoyPrairie,PierceCounty,Washington,USA. T.m.helleriElliot,1903—mouthoftheRogueRiver,CurryCounty,Washington,USA. T.m.hesperusMerriam,1901—coastalrangesofNWOregon,USA. T.m.lowieiGardner,1950—NECathlamet,WahkiakumCounty,Washington,USA. T.m.melanopsMerriam,1899—OlympicMts,ClallamCounty,Washington,USA. T.m.nasicusMerriam,1897—DeschutesRiverregion,COregon,USA. T.m.nigerMerriam,1901—coastofCOregon,USA. T.m.oregonusMerriam,1901—N&NWedgeofWillametteValley,Oregon,USA. T.m.premaxillarisGrinnell,1914—YollaBollyMts,TehamaCounty,California,USA. T.m.pugetensisDalquest&Scheffer,1942—vicinityofOlympia,ThurstonCounty,Washington,USA. T.m.tumuliDalquest&Scheffer,1942—NofTenino,ThurstonCounty,Washington,USA. T. m. yelmensis Merriam, 1899 — vicinity of Yelm Prairie, Thurston County, Washington, USA. in Geomyidae

Subspecies and Distribution. T.m.mazamaMerriam,1897—CascadeRange,fromCOregonthroughNCalifor- nia,USA. T.m.couchiGoldman,1939—vicinityofShelton,MasonCounty,Washington,USA. T.m.glacialisDalquest&Scheffer,1942—RoyPrairie,PierceCounty,Washington,USA. T.m.helleriElliot,1903—mouthoftheRogueRiver,CurryCounty,Washington,USA. T.m.hesperusMerriam,1901—coastalrangesofNWOregon,USA. T.m.lowieiGardner,1950—NECathlamet,WahkiakumCounty,Washington,USA. T.m.melanopsMerriam,1899—OlympicMts,ClallamCounty,Washington,USA. T.m.nasicusMerriam,1897—DeschutesRiverregion,COregon,USA. T.m.nigerMerriam,1901—coastofCOregon,USA. T.m.oregonusMerriam,1901—N&NWedgeofWillametteValley,Oregon,USA. T.m.premaxillarisGrinnell,1914—YollaBollyMts,TehamaCounty,California,USA. T.m.pugetensisDalquest&Scheffer,1942—vicinityofOlympia,ThurstonCounty,Washington,USA. T.m.tumuliDalquest&Scheffer,1942—NofTenino,ThurstonCounty,Washington,USA. T. m. yelmensis Merriam, 1899 — vicinity of Yelm Prairie, Thurston County, Washington, USA.