134 ONYCHOMYS. 



II, 1901, p. 122. Zool. Ser. Id. Mamm. Middle Amer. & W. 

 Indies, F. C. M. Pub., iv, Pt. i, 1904, p. 168. Zool. Ser. 

 Drab-gray Mole Mouse. 



Type locality. Colorado River at Monument No. 204, Mexican 

 boundary line, Yuma County, Arizona. 



Geogr. Distr. Gila City, across Yuma and Colorado Deserts to 

 the Coast Range. 



261. Onychomys fuliginosus Merriam. 



Onychomys fuliginosus Merr., N. Ava. Faun., No. 3, 1890, p. 60. 

 Elliot, Syn. N. Am. Mamm., F. C. M. Pub., 11, 1901, p. 123. 

 Zool. Ser. 

 Dusky Mole Mouse. 



Type locality. Black Tank lava beds, northeast of San Francisco 

 Mountain, Coconino County, Arizona. 



Geogr. Distr. Arizona. Range unknown. 



262. Onychomys macrotis Elliot. 



Onychomys macrotis Elliot, Pub. Field Columb. Mus., iii, 1903, 

 p. 155. Zool. Ser. Id. Mamm. Middle Amer. & W. Indies, F. 

 C. M. Pub., IV, Pt. I, 1904, p. 169. Zool. Ser. 

 Large-eared Mole Mouse. 



Type locality. Head of San Antonio River, Lower California, 

 Mexico. 



Geogr. Distr. San Quentin to San Antonio River, Trinidad Valley 

 and plain of El Alamo to about 5,000 feet elevation in the San Pedro 

 Martir Mountains, Lower California, Mexico. 



263. Onychomys pulcher Elliot. 



Onychomys pidcher Elliot, Pub. Field Columb. Mus., iii, 1903, p. 

 243. Zool. Ser. 

 Beautiful Mole Mouse. 



Type locality. Morongo Pass, San Bernardino Mountains, River- 

 side County, California. 



Genl. Char. Size medium; color pale. 



Color. Upper parts buff inclining to pinkish, darker on rump, 

 where the tint becomes almost a salmon buff; nose, sides of face, lips, 

 entire under parts, legs and feet pure white; tail above soiled white; 

 sides and under parts white; ears whitish at base, probably flesh color 

 in life, apical half brownish black. A tuft of whitish hairs covers the 

 base of the ear. Orbital ring black. 



Measurements. Total length, 150; tail vertebrae, 55 ; hind foot, 21 ; 

 ear, 18.5. Skull: total length. 25.5; Hensel, 20; zygomatic width, 

 13.5; interorbital constriction, 5; length of nasals, 9: palatal length, 



