298 PERODIPUS. 



Genl. Char. Size small; ears small; color pale. Skull small and 

 rather narrow; breadth of parietal less than the length; maxillary 

 arch weak and slender, without external angle. 



Color General color, "pale buffy ochraceous, much paler than 

 onii or columbianus." 



Measurements. Type. Total length, 282; tail vertebrae, 165; 

 hind foot, 41. 



a. 1'i-rnil i i>n x in ir/-n//x /cri/trs Merriam. 



I'erodipus uiicrops levipes Merr., Proc. Biol. Soc. Wash., xvn, 



1904, p. 145. 

 LIGHT-FOOTED KANGAROO RAT. 



Type locality. Perognathus Flat, Emigrant Gap, Panamint Moun- 

 tains, California. 



Geogr. Distr. Panamint Mountains, California. 



Genl. Char. Size small; color as in P. microps. Skull small; 

 bullae bulging posteriorly ; maxillary arches weak. 



Color. Like P. mi-crops. 



Measurements. Type. Total length, 288; tail vertebrae, 164; hind 

 foot, 42.4. 



738. Perodipus ingens Merriam. 



PeroJipns ingens Merr., Proc. Biol. Soc. Wash., xvn, 1904, p. 141. 

 GREAT KANGAROO RAT. 



Type locality. Painted Rock, twenty miles southeast of Simmler, 

 Carrizo Plain, San Luis Obispo County, California. 



Geogr. Distr. Carrizo Plain, and southwestern border of San Joa- 

 quin Valley, California. 



Genl. Char. Size large; ears small. 



Color. Buffy ochraceous; upper and lower tail bands black, unit- 

 ing at end of vertebrae; pencil white washed with dusky. 



Measurements. Total length, 360; tail vertebras, 191; hind foot, 

 54. Skull: occipito-nasal length, 45; basal length, 34; xygomatic 

 breadth, 23.5; breadth across bullae, 30.5; breadth of frontals poste- 

 riorly, 17; behind lachrymals, 15; length of nasals, 18. 



739. Perodipus longipes (Merriam). 



/iipoJops longipcs Merr., N. Am. Faun., No. 3, 1890, p. 72. 

 I'cro.h'pits loin'ifes Kllint. Syn. X. Am. Mumm., F. C. M. Pub., 

 it, Kjor, p. 239. /<>< >1. Srr. 



LoXC.-FOOTKl) KANGAROO R.\T. 



'/'v/v locality. Foot of Keho (Mill's, Painted Desert, Coconino 

 < !i mill v. Arizona. 



Geogr. Distr. l't;ili, Wyoming, Nebraska, Xc\v Mexico, and Arizona. 



