Order Rodentia (Part 4) Author James H. Honacki Author Kenneth E. Kinman Author James W. Koeppl text 1982 Alien Press, Inc. & The Association of Systematics Collections Lawrence, Kansas, USA Editor James H. Honacki Editor Kenneth E. Kinman Editor James W. Koeppl Mammal Species of the World (1 st Edition) 477 504 book chapter http://doi.org/10.5281/zenodo.7353034 4170533d-8435-4cb4-93df-e7f9489eb798 0-89327-235-3 7353034 Microtus canicaudus Miller, 1897 . Proc. Biol. Soc. Wash., 11:67 . TYPE LOCALITY: U.S.A. , Oregon , Polk Co., McCoy . DISTRIBUTION: Restricted to Willamette Valley, Oregon , and adjacent Washington ( U.S.A. ). COMMENT: Subgenus Microtus ; closely related to montanus and formerly considered conspecific; Hsu and Johnson, 1970 , J. Mammal., 51: 824-826, provided evidence of specific distinctness. See Maser and Storm, 1970, A Key to the Microtinae of the Pacific Northwest, O.S.U. Book Stores, Corvalis, Oregon , for status and distribution.