_Type._--Obtained at the head of Big Lost River, Custer County, Idaho, by B. H. Dutcher on September 23, 1890; type in United States National Museum. _Racial characters._--Similar to _devexus_ but upper parts rich tawny in color. _Measurements._--Three males and 2 females from Newport, Pend Oreille County, average, respectively: total length 189, 186; length of tail 54, 57; hind foot 27, 26. _Distribution._--Along the eastern border of the state to the north of the Snake River, northeastern Washington, and the northeastern Cascades. =Thomomys talpoides yakimensis= Hall and Dalquest _Thomomys talpoides yakimensis_ Hall and Dalquest, Murrelet, 20:4, April 30, 1939. _Thomomys talpoides badius_ Goldman, Jour. Mamm., 20:242, May 15, 1939 (type from Wenatchee, Chelan County, Washington). _Type._--Obtained at Selah, Yakima County, Washington, by P. Burgner, on November 27, 1938; type in Museum of Vertebrate Zoölogy. _Racial characters._--Similar to _fuscus_ but more orange, less red. _Measurements._--Four male and 3 female topotypes average, respectively: total length 209, 191; length of tail 60, 56; hind foot 27, 26. _Distribution._--The eastern edge of the Cascades from the Wenatchee Mountains south to the Simcoe Anticline. =Thomomys talpoides shawi= Taylor _Thomomys douglasii shawi_ Taylor, Proc. Biol. Soc. Washington, 34:121, June 30, 1921. _Thomomys talpoides shawi_ Hall and Dalquest, Murrelet, 20:4, April 30, 1939. _Type._--Obtained at Owyhigh Lakes, Mount Rainier, Pierce County, Washington, by G. G. Cantwell, on August 9, 1919; type in United States National Museum. _Racial characters._--A large, tan-colored pocket gopher, similar to _aequalidens_ but paler. _Measurements._--Two male and 7 female topotypes average, respectively: total length 227, 213; length of tail 72, 64; hind foot 32, 30. _Distribution._--The higher Cascade Mountains from Mount Rainier southward. Southern limits of range unknown. =Thomomys talpoides immunis= Hall and Dalquest _Thomomys talpoides immunis_ Hall and Dalquest, Murrelet, 20:4, April 30, 1939. _Type._--Obtained 5 miles south of Trout Lake, Klickitat County, Washington, by W. W. Dalquest on July 27, 1937; type in Museum of Vertebrate Zoölogy. _Racial characters._--Similar to _shawi_ but paler and grayer. _Measurements._--Two males and 2 females from Morrison Springs Ranger Station, Skamania County, average, respectively: total length 211, 212; length of tail 64, 58; hind foot 28, 29.