FIELD BOOK OF MAMMALS 



California Shrew. — Sorex caUfornicus californicus Merriam. 

 Size small. Upperparts grizzled dark ashy gray; under- 

 parts slaty, washed with whitish. Total length, 2)-7 inches; 

 tail vertebrae, 1.4 inches; hind foot, .46 inch. Found in 

 "Sonoma, Contra Costa, and Alameda Counties, central 

 California." (Miller) 



Ashland Shrew. — Sorex trigonirostris Jackson. 



Resembling californicus but differing in cranial characters. 

 Upperparts (summer) light grayish brown; sides lighter 

 than back; underparts pale smoke-gray; tail olive-brown 

 above, buffy below. Total length, 3.8 inches; tail verte- 

 brae, 1.4 inches; hind foot, .48 inch. Found in region about 

 Ashland, Jackson County, Oregon. 



Suisun Shrew. — Sorex sinuosus Grinnell. 



Closely related to californicus but much darker in color. 

 Upperparts blackish along back, with metallic sheen; sides 

 and underparts deep clove-brown; tail unicolor, dark seal- 

 brown. Total length, 4.1 inches; tail vertebrae, 1.55 inches; 

 hind foot, .5 inch. Found in "the brackish marshes of 

 Grizzly Island, bordering Suisun Bay," Solano County, 

 California. (Grinnell) 



Shasta Shrew. — Sorex shastensis Merriam. 



Smaller than typical vagrans. Upperparts dull yellowish 

 brown in summer; dark slaty gray in winter; underparts 

 ashy brown ; tail bicolor, above dusky, below buffy, tip dark. 

 Total length, 3.6 inches; tail vertebrae, 1.4 inches; hind foot, 

 .48 inch. Found in the Canadian Zone on Mount Shasta, 

 California. 



Inyo Shrew. — Sorex tenellus tenellus Merriam. 



Size small; colors pale. Upperparts pale ash-gray; under- 

 parts white; tail bicolor, above dark, below white. Total 

 length, 4.0 inches; tail vertebrae, 1.6 inches; hind foot, .5 

 inch. Found in southeastern California. 



Mount Lyell Shrew. — Sorex tenellus lyelli Merriam. 



Resembling typical tenellus but slightly browner above. 

 Total length, 4.1 inches; tail vertebras, 1.6 inches; hind 

 foot, .48 inch. Found on Mount Lyell, Tuolumne County, 

 California. 



White Mountain Shrew. — Sorex tenellus myops Merriam. 

 Resembling typical tenellus, but slightly smaller, ears larger, 

 color paler. Total length, 3.9 inches; tail vertebras, 1.64 

 inches; hind foot, .5 inch. Found in the White Mountains, 

 Inyo County, California. 



Dwarf Shrew. — Sorex tenellus nanus Merriam. 



Siz3 very small, one of the smallest of North American 

 Shrews. Upperparts sepia brown; sides paler than back; 

 underparts ashy; tail bicolorj above like back, below whitish, 

 tip dark. Total length, 4.2 inches; tail vertebras, 1.7 inches; 

 hind foot, .40 inch. Found in Estes Park, Larimer County, 

 Colorado. 



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