SHREW 



hairs; underparts whitish. Total length, 4.5 inches: tail 

 vertebras, 1.7 inches; hind foot, .56 inch. Found on Popof 

 Island, Shumagin Islands, Alaska. 



Baird Shrew. — Sorex bairdi Merriam. 



Size large, tail long. Upperparts dark chestnut-brown; 

 underparts brownish; tail bicolor, above dark brown, below 

 flesh color. Total length, 5.2 inches; tail vertebrae, 2.3 

 inches; hind foot, .6 inch. Found in western Oregon in 

 region about the mouth of the Columbia River and east as 

 far as the Willamette Valley. 



Trowbridge Shrew. — Sorex trowhridgii trowhridgii Baird. 

 Size large, tail long, color dark. Upperparts blackish slate; 

 underparts slaty; tail bicolor, blackish above, whitish below. 

 Total length, 4.8 inches; tail vertebras, 2.3 inches; hind foot, 

 .54 inch. Found in "Western Washington and Oregon, 

 west of Cascade Range." (Merriam) 



Humboldt Shrew. — Sorex trowhridgii humboldtensis Jackson. 

 Resembling typical trowhridgii, but slightly larger. Upper- 

 parts (summer) dark slaty gray; underparts slightly paler; 

 tail bicolor, blackish above, whitish below. Total length, 

 5.3 inches; tail vertebras, 2.5 inches; hind foot, .56. Found 

 in "Coast region of Humboldt and northern Mendocino 

 Counties, California." (Jackson) 



Monterey Shrew. — Sorex montereyensis montereyensis Mer- 

 riam. 

 Size large; tail long; ears prominent; resembling typical 

 trowhridgii. Upperparts slate-black; underparts slaty to 

 dark brown; tail bicolor, blackish and whitish. Total 

 length, 4.8 inches, tail vertebrae, 2.1 inches; hind foot, .56 

 inch. Found in "Coast strip and Sierra Nevada of Cali- 

 fornia; south on the coast at least to Morro and San Luis 

 Obispo; south in the Sierra to Sequoia National Park and 

 East Fork Kaweah River." (Merriam) 



Yosemite Shrew. — Sorex montereyensis mariposcB Grinnell. 

 Closely resembling typical montereyensis but paler and 

 grayer. Summer pelage, upperparts, hair-brown mixed 

 with drab gray; tail bicolor, above, drab, below, dull white; 

 underparts drab gray. Total length, 4.6 inches; tail verte- 

 brae, 2 inches; hind foot, .56 inch. Found in the Yosemite 

 Valley, in the Transition Zone of the Central Sierra Nevada, 

 California. 



Adorned Shrew. — Sorex ornatus Merriam. 



Upperparts ashy gray, abruptly darker on rump; underparts 

 whitish; tail faintly bicolor, dark above, paler below, ter- 

 minal half dark above and below. Total length, 4.3 inches; 

 tail vertebrae, 1.7 inches; hind foot, ,5 inch. Found in 

 "Mountains of southern California, from head of Ventura 

 River and Mount Pinos easterly to San Bernardino Peak, 

 and south through the San Jacinto range to Santa Ysabel." 

 (Merriam) 



31 



