MAMMALS 329 



S. fremonti Audubon and Bachman. Similar to 5. hudsonicus, but 

 large; dorsal band pale yellowish rufous; length 335 mm.; tail 140 mm.; 

 hind foot 55 mm. : Colorado, Utah, New Mexico and Arizona; Canadian 

 zone. 



Subspecies of S. fremonti 



S. f. fremonti Aud. and Bach. Color grayish; white beneath: moun- 

 tains of Colorado and northeastern Utah. 



S. f. lychnuchus Stone and Rehn. Color dull ferruginous; fringe of 

 tail black: White Mountains, New Mexico. 



S.f. neomexicanus Allen. Size smaller: Taos Range, New Mexico. 



S.f. mogollenensis (Mearns). Dorsal band brighter: higher moun- 

 tains of central Arizona; Canadian and Boreal zones. 



S. f. grahamensis (Allen). Like S. f. mogoUonesis, but paler: fir 

 zone, Graham Mountains, Arizona. 



5. douglasii Bachman. Pine squirrel; redwood squirrel. Similar 

 to the red squirrel; color brown or brownish gray above and buff or 

 gray beneath; fur soft and dense; tail short, fringed with hellow; length 

 315 mm.; tail 125 mm.; hind foot 50 mm.: Pacific slope from British 

 Columbia to Lower California; in coniferous forests. 



Subspecies of S. douglasii 



S. d. douglasii Bach. Washington and Oregon, along the coast. 



6". d. mollipilosus (Audubon and Bachman) . Color dark brown ; belly 

 gray; white tail fringe: coast region of northern California and southern 

 Oregon. 



S. d. cascadensis Allen. Size large; tail fringe white: Cascade 

 Mountains. 



S. d. albolimbatus Allen. Tail fringe white; belly buff; size large: 

 Sierras of northern California; southeastern Oregon. 



5. carolinensis Gmelin. Gray squirrel (Fig. 179). Color gray 

 above with a rusty middorsal region and white beneath; two color 

 phases may occur, the black color phase not uncommon in many locali- 

 ties; tail very long and bushy, edged with white; length 500 mm.; tail 

 220 mm.; hind foot 70 mm.: eastern and central States; westward into 

 Oklahoma and Nebraska; 2 litters of from 4 to 6 young each are raised. 



Subspecies of S. carolinensis 



S. c. carolinensis Gmelin. Size smaller; length 455 mm.: Austral 

 zone; southward to northern Florida; westward into Oklahoma and 

 Nebraska. 



