PEROMYSCUS. '203 



width, 115.5; interorbital constriction, 4.9; length of nasals, 10.2; 

 length of upper molar series, 4.9. 



172b. zelotes (Peromyscus), Osgood, Proc. Biol. Soc. Wash., xvii, 



1904, p. 67. 

 ENERGETIC MOUSE. 



Type locality. Querendaro, State of Michoacan, Mexico. 



Genl. Char. Similar to P. mclanophrys ; tail longer than head 

 and body. 



Color. "Similar in general to P. melanophrys, but facial region 

 more suffused with tawny and the gray very much reduced ; somewhat 

 similar to P. levipes, but paler throughout; no trace of a pectoral 

 spot." 



Measurements. Total length, 218; tail vertebrae, 115; hind foot, 

 23. Skull: greatest length, 28.3; Hensel, 21.6; zygomatic width, 

 14.2; interorbital constriction, 4.9; length of nasals, 10.6; length of 

 upper molar series, 4.6. 



173. insignis (Peromyscus] , Rhoads, Proc. Acad. Nat. Scien. Phil., 



1895, p. 33. Elliot, Syn. N. Am. Mamm., 1901, p. 138. 

 SACHEM OR CHIEF MOUSE. 



Type locality. Dulzura, San Diego County, California. 



Geogr. Distr. Southern California, and Lower California, Mexico. 



Genl. Char. Size large; tail very long, exceeding head and body. 



Color. Above light brownish gray, mingled with black; darkest 

 on back, brownest on rump and thighs; flanks ochraceous; hands, 

 feet, and under surface grayish white ; tail above sooty, below grayish 

 white. 



Measurements. Total length, 233; tail vertebra?, 132; hind foot, 

 26; ear, 23. Skull: occipito-nasal length, 29; Hensel, n; zygomatic 

 width', 9 ; interorbital constriction, 4 ; length of nasals, 1 1 ; palatal 

 length, ii ; length of upper molar series, 4. 



174. californicus (Mus), Gambel, Proc. Acad. Nat. Scien. Phil., 



1848, p. 78. 



californicus (Pcromyscus), Elliot, Syn. N. Am. Mamm., 1901, p. 137 

 CALIFORNIA MOUSE. 



Type locality. Monterey, Monterey County, California. 



Geogr. Distr. Lower California, Mexico, north along the coast of 

 California. 



Genl. Char. Size large; tail long; ears large, sparsely haired. 



Color. Above dark gray mixed with light brown; sides fulvous; 

 under parts grayish buff; tail blackish brown above, whitish below. 



Measurements. Total length, 265; tail vertebrae, 142; hind foot, 



