_Diagnosis._--Size medium for the species; average and extreme external measurements of 6 specimens from the type locality are: total length, 126.3 (124-130); tail, 55.0 (52-57); hind foot, 15.0 (14-15). Color Fuscous to Sepia in summer, darker in winter, underparts buffy. _Comparisons._--For comparisons with _yaquinae_ see account of that subspecies. More reddish and larger than _permiliensis_ with which _bairdi_ intergrades to the east; specimens from Portland show evidence of such intergradation. Some specimens from southern Tillamook County show an approach to _yaquinae_. _Remarks._--_S. v. bairdi_ lives primarily in forests as do _yaquinae_ and _pacificus_. _Specimens examined._--Total number, 39. OREGON: _Clatsop Co._: type locality, 12 BS; Seaside, 3 BS. _Tillamook Co._: Netarts, 1 OU; Tillamook, 2 OSC; Blaine, 1 AW; Hebo Lake, 1 SGJ; 5 mi. SW Cloverdale, 1 AW. _Multnomah Co._: Portland, 6 USNM. _Lincoln Co._: Otis, 7 USNM; Delake, 1 KU. _Lane Co._: north slope Three Sisters, 6000 ft., 4 BS. _Marginal Records._--OREGON: type locality; Portland; north slope Three Sisters; Taft (Macnab and Dirks, 1941:178). =Sorex vagrans permiliensis= Jackson _Sorex obscurus permiliensis_ Jackson, Proc. Biol. Soc. Washington, 31:128, November 29, 1918. _Type._--Adult male, skin and skull; No. 91048, U. S. Biol. Surv. Coll.; obtained on October 2, 1897, by J. A. Loring from Permilia Lake, W base Mt. Jefferson, Cascade Range, Marion Co., Oregon. _Range._--The Cascade Mountains of Oregon from Mt. Jefferson north to the Columbia River. _Diagnosis._--Size medium for the species; average and extreme measurements of 14 specimens from the type locality are: total length, 117.7 (110-124); tail, 51.9 (45-58); hind foot, 14.0 (14-15). Pale reddish in summer, darker and brownish in winter. _Comparisons._--For comparison with _S. v. bairdi_ see account of that subspecies. Larger than _S. v. setosus_ except tail relatively shorter. More reddish in summer pelage than _setosus_. _Remarks._--_S. v. bairdi_ is larger in the southern part of its range than elsewhere. Specimens from McKenzie Bridge, herein referred to _yaquinae_, are intermediate in character between _yaquinae_ and _bairdi_ or between _yaquinae_ and _permiliensis_. The transition between _yaquinae_ and _bairdi_ is much more gradual than between _yaquinae_ and _permiliensis_. _Specimens examined._--Total number, 21. OREGON: _Hood River Co._: Mt. Hood, 2 BS. _Wasco Co._: Camas Prairie, E base Cascade Mts., SE Mt. Hood, 1 BS. _Marion Co._: Detroit, 1 BS; type locality, 17 BS. _Marginal Records._--OREGON: Mt. Hood; type locality; Detroit. =Sorex vagrans setosus= Elliott _Sorex setosus_ Elliott, Field Columb. Mus. Publ. 32, zool. ser. 1:274, May 19, 1899. _Sorex obscurus setosus_, Jackson, Proc. Biol. Soc. Washington, 31:127, November 29, 1918.