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 townsendii (Bachman, 1839) . J. Acad. Nat. Sci. Phila., 8: 60 . TYPE LOCALITY: U.S.A. , Oregon , Multnomah Co., Wappatoo (Sauvie) Isl. in lower Columbia River, near mouth of Willamette River . DISTRIBUTION: Vancouver Isl.; extreme S.W. British Columbia ( Canada ) south to N. California , along Pacific coast of U.S.A. COMMENT: Subgenus Microtus ; see Anderson, 1959 , Univ. Kans. Publ. Mus . Nat. Hist., 9:415-511, and Anderson, 1960 , Univ. Kans. Publ. Mus . Nat. Hist., 12: 181 -216. Reviewed by Maser and Storm, 1970, A key to Microtinae of the Pacific Northwest, O.S.U. Book Stores, Corvallis, Oregon . ISIS NUMBER: 5301410008080043001.