320 BULLETIN 128, UNITED STATES NATIONAL MUSEUM, 



*Peromyscus calif ornicus calif ornicus — Continued. 



Range. — Upper Sonoran and transition zones of the coast 

 region of California from San Francisco Bay south to the 

 vicinity of Santa Barbara, where intergradation with sub- 

 species insignis occurs. 



*Peromyscus calif ornicus insignis (Rhoads). 



1895. Peromyscus insignis Rhoads, Proc. Acad. Nat. Sci. Phila- 

 delphia, p. 33. February 21, 1895. 



1907. Peromyscus californicus insignis Mearns, Mamm, Mex. 

 Bound., p. 429. April 13, 1907. 



Type Locality.— Dulzura, San Diego County, California. 



Range. — Upper and lower Sonoran zones of the western valleys 

 and foothills of southwestern California and thence south into 

 northern Lower California. 



t*Peromyscus eremicus eremicus (Baird). 



1857. Hesperomys eremicus Baird, Mamm. N. Amer., p. 479. 



1885. Hesperomys leucopu^ eremicus True, Proc. U. S. Nat.. 

 Mus., vol. 7 (1884), p. 597. 1885. 



1895. Peromyscus eremicus Allen, Bull. Amer. LIus. Nat. Hist., 

 vol. 7, p. 226. June 29, 1895. 

 tl896. Peromyscus eremicus arenarius Mearns, Preliminary diag- 

 noses of new mammals from the Mexican border of the United 

 States, p. 2. May 25, 1896. (Reprint: Proc. U. S. Nat. Mus., 

 vol. 19, p. 138. December 21, 1896.) (Near El Paso, El Paso 

 County, Texas.) 

 tl896. Peromyscus merriami Mearns, Preliminary diagnoses of 

 new mammals from the Mexican border of the L'nited States, 

 p. 2, May 25, 1896. (Reprint: Proc. U. S. Nat. Mus., vol. 

 19, p. 138. December 21, 1896.) (Sonoyta, Sonora, Mexico.) 



Type Locality. — Old Fort Yuma, Imperial County, California, 

 on Colorado River, opposite Yuma, Arizona. 



Range.— Lower Sonoran zone of southeastern California and 

 northeastern Lower California east of the mountain ranges as 

 far south as the vicinity of San Luis Bay; eastward to western 

 Texas, and south to border States of eastern Mexico; north- 

 ward along the Colorado River, at least to the vicinity of the 

 mouth of the Little Colorado, also extending from the Colorado 

 River along the Virgin Valley to St. George, Utah, and north- 

 westward, crossing southern Nevada, to the Death Valley 

 region of California. 



♦Peromyscus eremicus fraterculus (Miller). 



1892. Vesperimus fraterculus Miller, Amer. Nat., vol. 26, p. 261. 

 March, 1892. 



