PEROMYSCUS. 151 



300. Peromyscus rowleyi (Allen). 



Sitomys rowleyi Allen, Bull. Am. Mus. Nat. Hist. N. Y., 1893, 



p. 76. 

 Peromyscus rowleyi Elliot, Syn. N. Am. Mamm., F. C. M. Pub., 



II, 1901, p. 134. Zool. Ser. 

 Rowley's Field Mouse. 



Type locality. Nolan's Ranch, San Juan County, Utah. 

 Geogr. Distr. Utah to Arizona. 



a. PeToniyscics rowleyi pinalis (Miller). 



Sitomys rowleyi pinalis Miller, Bull. Am. Mus. Nat. Hist. N. Y., 



1893. P- Z2>^- 

 Peromyscus rowleyi pinalis Elliot, Syn. N. Am. Mamm., F. C. M. 

 Pub., II, 1901, p. 135. Zool. Ser. Id. Mamm. Middle Amer. 

 & W. Indies, F. C. M. Pub., iv, Pt i, 1904, p. 189. Zool. Ser. 

 Rowley's Pine Mouse. 



Type locality. Granite Gap, Grant County, New Mexico. 

 Geogr. Distr. State of Sonora, Mexico, north to New Mexico 

 and Arizona. 



301. Peromyscus parasiticus Elliot. 



Peromyscus parasiticus Elliot, Pub. Field Columb. Mus., in, 1903, 

 p. 244. Zool. Ser. 

 Parasite Mouse. 



Type locality. Lone Pine, Inyo County, California. 



Geogr. Distr. Known only from the type locality. 



Genl. Char. Similar to P. r. pinalis, but larger in all of its dimen- 

 sions. Skull with larger rostrum, longer nasals, broader between 

 orbits, and larger, differently shaped braincase. 



Color. Top of head and dorsal region dusky cinnamon, becoming 

 pale cinnamon on sides of face beneath eyes; shoulders, flanks, and 

 sides of rump, lips, sides of nose, lower part of flanks, thighs, hands, 

 and feet and entire under parts white; base of fur plumbeous; tail 

 above dusky, beneath yellowish white. 



Measurements. Total length, 214; tail vertebrae, 119; hind foot, 

 23.5; ear, 20.5. Skull: total length, 28; Hensel, 19; zygomatic width, 

 13; interorbital constriction, 4.5; width of braincase, 12.5; length of 

 braincase, 14; palatal length, 11 ; length of nasals, 11 ; length of upper 

 tooth row, 4; length of mandible, 16; length of lower tooth row, 4. 



302. Peromyscus keeni (Rhoads). 



Sitomys keeni Rhoads, Proc. Acad. Nat. Scien. Phil., 1894, p. 258. 

 Peromyscus keeni Elliot, Syn. N. Am. Mamm., F. C. M. Pub., 11, 

 1901, p. 133. Zool. Ser. 1 



