WOOD RAT 



blackish wash along back; sides brighter; vinaceous tinge on 

 outer sides of legs; tail above grayish brown, below white; 

 feet white; underparts white. Total length, 13. i inches; 

 tail vertebrae, 6.1 inches; hind foot, 1.34 inches. Found in 

 "Northern New Mexico to southern Coahuila, Mexico, and 

 from central Texas to western Arizona. Upper and Lower 

 Sonoran Zones." (Goldman) 



M earns Wood Rat. — Neotoma alhigula mearnsi Goldman. 

 Paler than typical alhigula and with more pure white on 

 underparts. Upperparts light buff with sparse sprinkling 

 of black on head and back; underparts white, the fur white 

 to base except along flanks and sides of abdomen where it 

 is pale plumbeous basally; feet white; tail above grayish, 

 below white. Total length, 13.3 inches; tail vertebrae, 6.3 

 inches; hind foot, 1.3 inches. Found in the very arid desert 

 area from extreme southwestern Arizona southward along 

 the eastern side of the Gulf of California. 



Colorado Valley Wood Rat. — Neotoma alhigula venusta (True). 

 Larger than typical albigula. Upperparts and rest of pelage 

 as in typical alhigula. Total length, 15.8 inches; tail verte- 

 brae, 7.3 inches; hind foot, 1.5 inches. Found in "Colorado 

 River V^alley from northwestern Arizona to Gulf of Cali- 

 fornia and west through southern California to eastern basal 

 slopes of southern Sierra Nevada, San Bernardino, and San 

 Jacinto Mountains. Lower Sonoran Zone." (Goldman) 



Warren Wood Rat. — Neotoma albigula zvarreni Merriam. 

 Grayer than typical alhigula and with larger hind foot. 

 Upperparts (winter) pale buffy gray with light blackish 

 wash along back; a pale buffy lateral line above white of 

 abdomen; tail above brownish; white on underparts, feet, 

 and underside of tail, with fur white to base on throat and 

 breast. Total length, 12.6 inches; tail vertebra, 5.4 inches; 

 hind foot, 1.44 inches. Found on "Plains region of south- 

 eastern Colorado and northeastern New Mexico. Upper 

 Sonoran Zone." (Goldman) 



Intermedia Group 



Rhoads Wood Rat. — Neotoma intermedia i7itefmedia Rhoads. 

 Resembling typical albigula, but darker and without basally 

 white fur on throat and breast; ears large; tail bicolored. 

 Upperparts (summer) grayish brown, washed with pale buff 

 and sprinkled with black-tipped hairs, thickest on dorsal 

 region; dusky on sides of "ankles;" feet white; tail black 

 above, white below; underparts white, fur slate-colored at 

 base, generally with a faint buffy band across chest. Winter 

 pelage with more black-tipped hairs on upperparts than in 

 summer. Total length, 13 inches; tail vertebras, 6.4 inches; 

 hind foot, 1.26 inches. Found on "Lower slopes of southern 

 part of Sierra Nevada and coast region of CaHfornia from 

 Monterey Bay southward and throughout the mountains of 



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