Arborimus Taylor, 1915 . Proc. Calif. Acad. Sci., ser. 4, 5(5):119.

REVIEWED BY: M. L. Johnson (MLJ).

COMMENT: Formerly included in Phenacomys; see Johnson, 1973, J. Mammal., 54:239-244, and Johnson and Maser, in press, Northwest. Sci. Hall, 1981:788, considered Arborimus a subgenus of Phenacomys .