Scapanus orarius True. Proc. U. S. Nat. Mus., 19:52, December 21, 1896.
Scapanus orarius orarius [Jackson], N. Amer. Fauna, 38:61, September 30, 1915.
Type.—Obtained at Shoalwater (= Willapa) Bay, Pacific County, Washington, by J. G. Cooper on August 30, 1855; type in United States National Museum.
Racial Characters.—Color dark bluish; frontal region of skull not inflated.
Measurements.—Eight males and two females from Seattle, King County, average, respectively: total length 159, 155; length of tail 33, 31; hind foot 20.7, 20.5; weight 58.5, 55.8.
Distribution.—Western Washington. Marginal occurrences are: Skykomish (B.S.C.), Merritt (B.S.C.), Wenatchee (B.S.C.), Lester ([Jackson], 1915: 64) and Yacolt (M.V.Z.).
Scapanus orarius yakimensis [Dalquest] and [Scheffer]
Scapanus orarius yakimensis [Dalquest] and [Scheffer], Murrelet, 25:27, September 19, 1944.
Type.—Obtained 3/4 mile north of Union Gap, Yakima County, Washington, by J. A. [Gray], Jr., on July 3, 1941; type in Museum of Vertebrate Zoölogy.
Racial Characters.—Color pale, grayish; skull narrow with inflated frontal region.