Geogr. Distr. \'ancouver Island north to Sitka, Alaska. 



Gen/. Char. Apical third of tail black. Size small. 



Color. IVinler Pelage. Above like .S'. /;. richardsoni; tail has 

 only the apical third black; under parts gray tinged with brown and 

 vermiculated with dusky. Tail like that of .S". /;. streatori. 



Summer Pelage. Above dark olivaceous, tinged with reddish in 

 some specimens; under parts white tinged with yellow. 



Measurements. Total length, 290-325; tail vertebra^, 103-132; 

 hind foot, 48-52. 



79. douglasi. {Siiurus), Bachm., Proc. Zool. Soc, 1838, p. 99. 



helcheri. Gray, Ann. & Mag. Nat. Hist., 1842, p. 263. 



suckleyi. Baird, Proc. .^cad. Nat. Scien. Phil., 1855, p. 333. 



Type locality. "Columbus River," Oregon. 



Geogr. Distr. Coast region of Oregon and Washington, from 

 Cape Blanco to Puget Sound. 



Genl. Char. Tail fringed with yellowish; beneath in summer, 

 orange. 



Color. Winter Pelage. Dark ferruginous dorsal band; rest of 

 upper parts, limbs and feet, dark gray; under parts ochraceous 

 gray vermiculated with black; lateral line present. Tail above two- 

 thirds its length dark ferruginous and black; black border narrow; 

 subterminal black bar broad; fringe of tail yellowish. Tail beneath 

 grizzled rusty, the black margin apical band and yellow fringe more 

 distinct than above. 



Summer Pelage. Olivaceous brown tinged with reddish; under 

 parts orange varying in depth; feet orange rufous; lateral line con- 

 spicuously black. Tail as in winter pelage, but thinner. 



Measurements. Total length, 295-343; '^'' vertebr;f, 1 13-144; 

 hind foot, 47-51. 



a—moUipilosus. (Sciurus), Aud. & Bach., Proc. Acad. Nat. Scien. 

 Phil., 1842, p. 102. 



orarius, Bangs, Proc. Biol. Soc. Wash., 1897, p. 281. 



Type locality. Northern California. 



Geogr. Distr. Coast of northern California from Sonoma county, 

 into Curry county, Oregon. 



Genl. Char. White tail fringe; size small. 



Color. Winter Pelage. Similar to S. douglasi, but dorsal band 

 not so dark, and sides more grayish; under parts buffy gray and black. 

 Tail as in S. douglasi, but fringed with white instead of yellow. 



.'Summer Pelage. Like .S'. douglasi, but tail fringed with white. 

 Above more olivaceous. 



Measurements. Total length, 314-347; tail vertebra, 121-148; 

 hind foot, 45-55. 



