This rodent is restricted to Ethiopia's high mountains. A current species study says it prefers alpine moorland; a mammal reference describes the coat of narrow-concept O. typus as grizzled brown.
Mammal Species of the World describes the coat of narrow-concept O. typus proper as grizzled brown.
A genomic study of Ethiopia's highland rodents describes this species as Afro-alpine and says it prefers alpine moorland.
An extinction-risk assessment has not been added yet.