PEROMYSCUS. 137 



Geogr. Distr. Southern California. 



Genl. Char. Similar to /'. (reiiiiciis. but smaller, tail longer, and 

 colors paler. 



Color. Above grayish cream buff, sides and rump pale ochrace- 

 ous buff, feet and under parts white. Tail, above dusky, below 

 white. 



.\[tasuiemcnts. Total length, 193; tail vertebra', loS; liind foot, 

 19; ear, 18.5. 



184. major. (.St/owys), Rhoads, Amer. Natur., 1893, p. 831. 



Tr/>e locality. Squirrel Inn, San Bernardino County, California. 



Geogr. Distr. Southern California, range not determined. 



Genl. Char. Size large; tail ecjual in length to head and body; 

 hind feet small; ears large. 



Color. Above pale gra\'ish buff, brosvnish on rump; sides buffy; 

 beneath graj-ish white, no lateral stripe. Orbital ring black. 



Measurements. Total length, 193.5; '^'' vertebrae, 98.5: hind 

 foot, 22.5. 



185. herroni. (Sitomys), Rhoads, Amer. Natur., 1893, p. 832. 

 yV/(- /in-ality. San Bernardino Valley, California. 

 Geogr. Distr. Southern California. 



Genl. Char. Body short, stout ; tail long, slender; longer than 

 head and body; rather naked. 



Colt'r. Above uniform buffy gray; cheeks and flanks ochraceous 

 buff; feet and lower parts, white. Face gray. 



Measurements. Total length, 200; tail vertebra', 155; hind foot, 



21. Skull: total length, 24.5; basilar length, 18.5; zygomatic breadth, 

 12.3; nasals, 9.2; interorbital constriction, 3.5. 



a.—nigellii,". (.Sitomys), Rhoads, Proc. Acad. Nat. Scicn. Phi)., 1894. 

 p. 257. 



Ty/e locality. Cajou Pass, San Bernardino Range, California. 



Geogr. Distr. Southern California in high mountains. 



Genl. Char. Similar to P. herroni, but colors darker. 



Color. Like P. herroni, but the buffy gray is deeply lined with 

 black, darkest on posterior portion of body, cheeks and sides deep 

 fawn; under parts pure white. Ears and tail much darker than in 

 the allied species. 



Measurements. Total length, 197; tail vertebra', 114; hind foot, 



22. Skull: basilar length, 19; zygomatic width. 12.7: length of 

 nasals, (^.i; of mandible, 13. i. 



186. californicus. (.Ifus), Gambel, Proc. Acad. Nat. Scien. Phil., 



1848, p. 78. 

 Ty/>e locality. Monterey, California. 



