Ma'anar ƙamus na " Dutsen Beaver " wani tudu ne, rodent na Pacific Northwest, kama da ƙaramin beaver mai guntun wutsiya, zagayen kunnuwa, da ƙananan idanu, kuma ba shi da kunnuwa ganuwa. Shi kaɗai ne memba mai rai a cikin dangin Aplodontidae kuma ana kuma san shi da "Aplodontia rufa."
