DIPODOMYS. 238 



Gc-nl. Char. Similar to/?, ///(/v/'aw/, tail shorter, hind foot longer; 

 color paler. 



Color. Above pinkish buff, lined on head and back with black; 

 black marks on face distinct; stripes on thigh and under parts white; 

 stripes on tail above and below meeting at end of tail duskj-. Legs, 

 inside dusky to the heel. 



Measurenunts. Total length, 240; tail vertebra-, 140: hind foot, 

 39; ear, 13. 



b.—nitratiis. {Di/>odom\s), Merr. . Proc. Biol. Soc. Wash., 1894, 

 p. 112. 



Type locality. Keeler, Owens Lake, California. 



Geogr. Distr. Eastern California. 



Genl. Char. Small; hind feet larger than those of D. mcrriami^ 

 no fascial crescents: no black markings. 



Color. Above ochraceous without black markings; white spot 

 over eye; beneath white; upper and lower stripes on tail same color 

 as back; stripes on side continuous. 



Measurements. Total length, 239; tail vertebra;'. 141; hind 

 foot, 37.8. 



c.—nitratoides. {Di/ioilowvs), Merr., Proc. Biol. Soc. Wash., 1894, 

 p. 112. 



Type locality. Tipton, San Joaquin \'alley, California. 



Geogr. Distr. South central California. 



Genl. Char. Similar to D. nitratus. but fascial crescents present. 



Color. Above fulvous; facial marks dusky; inside of hind legs 

 to heel fulvous; beneath and stripe on thigh white; dorsal tail stripe 

 darker than back, ventral stripe fulvous and extending length of tail; 

 crested portion of tail like back. 



Mtasurniiints. Total length, 246; tail vertebrs, 148; hind 

 foot, 35. 



(1. — e.vilis. {Dipodomys'), Merr., Proc. Biol. Soc. Wash., 1894. p. 113. 



Type locality. Fresno, San Joaquin \'alley, California. 



Geogr. Distr. South central California. 



Genl. Char. Smaller than D. iiurriami and darker. 



Color. Above claj' color heavilj' lined with black; darkest on 

 top of head; sides tinged with ochraceous buff; black lines on face 

 across the nose; superciliary stripe whitish; lower part of legs and 

 ankles black; beneath white; tail stripes sootj* black, meeting about 

 one-third the length from tip, rest of tail white. 



Mtahircmrnts. Total length. 227; tail vertebra-, 135.5: hind 

 foot, 34. 



