310 CALIFORNIA ACADEMY OF SCIEXCES [Proc. 4th Ser. 



Peromyscus californicus insignis Rhoads 

 Southern Parasitic Mouse 



Original description — Peromyscus insignis Rhoads, Proc. 

 Acad. Nat. Sci. Phila., March, 1895, p. 35. 



Type locality — Dulzura, San Diego County, CaHfornia. 



Synonym — Hespcromys californicus. 

 . Range — Upper Sonoran zone in southern CaHfornia from 

 San Gabriel Mountains in Los Angeles County south to the 

 Mexican line (Osgood, N. Amer. Fauna, 28. 1909, p. 238; 

 Mus. Vert. Zool.). 



Peromyscus eremicus eremicus (Baird) 

 Desert White-footed Mouse 



Original description — Hesperomys eremicus Baird, Pac. R. 



R. Rep., 8, 1857, pp. 479, 480. 



Type localitx — Fort Yuma, Imperial County, California, 

 Ransc — Lower Sonoran zone on Colorado desprt and east- 



ern parts of Mohave desert, west to east base of San Jacinto 



Mountains, and north to the Death Valley region (Osgood, N. 



Amer. Fauna, 28, 1909, p. 242; Mus. Vert. Zool.). 



Peromyscus eremicus fraterculus (Miller) 

 Dulzura White-footed Mouse 



Original description — Vespcriiinis fraterculus Miller, Arrier. 

 Nat., 26, March, 1892, pp. 261-263. 



Type locality — Dulzura, San Diego County, California. 



Synonyms — Sitomys hcrroni Rhoads, Amer. Nat, 27, Sep- 

 tember, 1893, pp. 832, 833 (type from San Bernardino Valley 

 [==Reche Canyon], San Bernardino County, California); 

 Sitomys herroni nigellus Rhoads, Proc. Acad. Nat. Sci. Phila., 

 October, 1894, p. 257 (type from west Cajon Pass, San Ber- 

 nardino County, California). 



Range — San Diegan district west of the desert divide, from 

 Nordhofif, Ventura County, southeast to the Mexican line, 

 chiefly in Lower Sonoran zone (Osgood, N. Amer. Fauna, 28, 

 1909,' p. 244; Mus. Vert. Zool.). 



