“Genus Aplodontia” ba kalma ba ce a cikin kanta, sai dai rarrabuwar haraji da ake amfani da ita a cikin ilmin halitta don nufin rukunin nau’in rodents da aka fi sani da dutsen beavers. Halin da ake kira Aplodontia ya ƙunshi nau'in halittu guda ɗaya kawai, Aplodontia rufa, wanda ke samuwa a yankin Pacific Northwest na Arewacin Amirka.A cikin rarrabuwar haraji, jinsin Aplodontia wani ɓangare ne na iyali Aplodontidae , wanda ƙananan iyali ne. na rodents wanda kuma ya hada da batattu nau'in Aplodontia manyan. Sunan Aplodontia ya samo asali ne daga kalmomin Helenanci "aploos," ma'ana mai sauƙi, da "odontos," ma'ana hakori, wanda ke nufin gaskiyar cewa waɗannan rodents suna da nau'i-nau'i guda biyu kawai na manya, masu girma a cikin ƙananan muƙamuƙi, irin wannan. ga sauran rokoki kamar bera da zomaye.