Measurements.—A male and a female from Glade Creek, 1/2 mile north of the Columbia River, Benton County, measure, respectively: total length 425, 395; length of tail 181, 176; hind foot 50, 44; ear 32, 31; weight 532.5, 330.0 grams.
Distribution.—Throughout the state except in the Blue Mountains.
Remarks.—Specimens from the Olympic Mountains and western Washington are slightly duller-colored than specimens from eastern Washington and young from western Washington are more bluish, less gray, than young individuals from the Columbian Plateau. The specimens from the Columbian Plateau show some resemblance to alticola. Specimens from northeastern Washington are more like typical occidentalis.
Neotoma cinerea alticola Hooper
Neotoma cinerca alticola Hooper, Univ. California Publ. Zoöl., 42:409, May 17, 1940.
Type.—Obtained at Parker Creek, 5,500 ft., Warner Mountains, Modoc County, California, by N. B. Stern on June 22, 1916; type in Museum of Vertebrate Zoölogy.
Racial characters.—Similar to Neotoma c. occidentalis but slightly paler, with paler hind feet and narrower sphenopalatine vacuities.
Measurements.—A female from Stay-a-while Spring, Columbia County, measures: total length 387; length of tail 171; hind foot 43; ear 33; weight 330 grams.
Distribution.—Southeastern Washington, south of the Snake River.
Remarks.—The only adult specimen available from the Blue Mountains shows well the characters attributed to alticola.