_Distribution._--The western part of the northern Cascades (Glacier, Jackson, 1928: 55) and the Olympic Peninsula (Neah Bay south to Cedarville, Jackson, 1928: 55). _Remarks._--This shrew seems to occupy the same range as _Sorex obscurus setosus_ but is rare where _obscurus_ is common. =Sorex merriami merriami= Dobson Merriam shrew _Sorex merriami_ Dobson. Monogr. Insectivora, pt. 3, fasc. 1, pl. 23, fig. 6, May, 1890. _Sorex merriami merriami_ Benson and Bond. Jour. Mamm., 20: 348, August 14, 1939. _Type._--Obtained on Little Bighorn River, about a mile and a half above Fort Custer, Crow Indian Reservation, Montana, by Charles E. Bendire on December 26, 1884; type in United States National Museum. _Measurements._--Of type: total length 90; length of tail 35; hind foot 11.5 (after Jackson, 1928: 80). _Distribution._--A single specimen of this rare shrew is known from Washington. Jackson (1928: 81) states that it "was collected by George G. Cantwell, November 18, 1919, at the entrance to an old badger digging on top of a 'high bunch grass hill' at Starbuck (altitude 645 feet), Columbia County, Wash." _Description._--Similar to _Sorex cinereus_ but upper parts pale grayish and underparts white. The Merriam shrew has been recorded from but a few localities in the western United States. It is one of the rarest of the small mammals known to occur in North America. All the known specimens have been found in desert areas. =Sorex trowbridgii= Baird Trowbridge shrew _Description._--The Trowbridge shrew closely resembles the cinereous shrew in body form but possesses a longer tail. The head and body of adults measure about 2-1/4 inches and the tail about 2 inches. The Trowbridge shrew may be separated from all other small shrews that occur in Washington by its dark bluish upper parts and bluish or slaty underparts. The tail is distinctly bicolor. Trowbridge shrews occur from southern British Columbia south to central California. Their distribution, to the south, is more extensive than that of many members of the Pacific Coastal Fauna. They are forest animals, ranging widely over the dry ground beneath the fir forest, where they are usually the only shrews present. They are abundant in ravines and in some swampy woods when other shrews are absent, but they avoid open meadows or marshes. Vertically, they occur from the humid division of the Transition Life-zone to the Hudsonian Life-zone. These little shrews do not live well in captivity and I have learned relatively little concerning their habits from live specimens. They seem to be slower-moving and less aggressive than the wandering shrew. Population studies showed that the Trowbridge shrew is unable to compete with the wandering shrew in ravine habitats (Dalquest, 1941A: 173). The principal food of the Trowbridge shrew includes soft-bodied insects and insect pupae.