FIELD BOOK OF MAMMALS 



Rowley White-footed Mouse. — Peromyscus hoylii rowleyi 



(Allen). 

 Closely resembling typical boylii in everything except color, 

 paler. Upperparts "ochraceous buff uniformly sprinkled 

 with dusky; sides like back, except a relatively broad lateral 

 line of ochraceous buff unmixed with dusky ; nose and postor- 

 bital region grayish; narrow orbital ring blackish; ears 

 dusky, faintly edged with whitish; underparts creamy white; 

 tail dusky brownish above, white below; feet white, dusky 

 of hind legs extending to tarsal joints, but not sharply con- 

 trasted." Total length, 7.2-8.3 inches; tail vertebrae, 3.6- 

 4.4 inches; hind foot, .84-92 inch. Found in "Mountains 

 of southern California, northern Lower California, southern 

 Nevada, Utah, Colorado, Arizona, New Mexico, western 

 Texas, and south in Mexico. ..." (Osgood) 

 Attwater White-footed Mouse; Attwater Brush Mouse. — 



Peromyscus hoylii attwateri (Allen). 

 Larger than rowleyi, colored about as in typical hoylii. 

 Upperparts pale cinnamon sprinkled finely with dusky; 

 slightly grayish about head; ochraceous buff on lower sides 

 of face, narrow lateral line and occasionally a small spot on 

 pectoral area; dusky on hind leg down as far as upperside 

 of hind foot; underparts creamy white. Total length, 7.5- 

 8.7 inches; tail vertebras, 3.8-4.5 inches; hind foot, .92-1.0 

 inch. Found in " South central and parts of western Texas; 

 north to eastern Oklahoma, central Missouri, and southern 

 .Kansas. Chiefly confined to rocky cliffs in upper Sonoran 

 Zone." (Osgood) 



Pectoralis Group 



Lacey White-footed Mouse. — Peromyscus pectoralis laceianus 



Bailey. 

 Tail long, generally slightly more than half the total length; 

 resembling attwateri somewhat, but lacking the dusky 

 markings on the tarsal joint. Upperparts varying from 

 pinkish buff to ochraceous buff mixed with more or less 

 dusky; dorsal area about as dark as rest of upperparts; 

 no white at base of ears; feet white without dusky tinge on 

 tarsal joint; tail pale brown above, white below; under- 

 parts creamy white. Total length, 7- 2-7- 7 inches; tail 

 vertebrae, 3.8-4.0 inches; hind foot, .88-92 inch. Found in 

 "West central Texas, from the vicinity of Austin to the 

 Big Bend of the Rio Grande. ..." (Osgood) 

 Durango White-footed Mouse.' — Peromyscus pectoralis eremi- 



coides (Osgood). 

 Resembling /aceiawM5 in color ;" ears quite small ; . . .soles 

 of hind feet usually slightly hairy proximally but sometimes 

 naked, at least medially. Upperparts mixed pinkish buff 

 and dusky, . . . ; lateral line pinkish buff; facial region 

 between eye and ear grayish ; underparts pure creamy white 



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