VOL. XIV, PP. 125-126 JULY 19, I90/ 



PROCEEDINGS 



or THB 



BIOLOGICAL SOCIETY OF WASHINGTON 



TWO NEW RODENTS FROM NORTHWESTERN 

 CALIFORNIA. 



BY 0. HART MERR1AM. 



Phenacomys albipes sp. nov. 



Type from Redwoods, near Arcata, Ilumboldt Bay, California. No. 

 97,286, $ ad., U. S. National Museum, Biological Survey Collection. 

 May 24, 1899. Walter K. Fisher. Original Xo. 821. 



Characters. Appearance Microtus-like; size rather large; tail long, 

 sharply bicolor, and scantily haired. Color grizzled brown; fore and 

 hind feet white. 



Color. Upperparts grizzled bister with brownish wash on head, 

 shoulders, and sides; sides of nose dark grayish; underparts grayish . 

 plumbeous with buffy wash: fore and hind feet white; ankles dusky: 

 tail dusky above and broadly whitish below, with sharp line of de 

 marcation. 



Cranial character*. Skull long and rather slender: braincase long; 

 interparietal large and broad, zygomata not spreading, the anterior 

 roots sloping strongly backward, the jugals slightly expanded and nearly 

 parallel: nasals broadly wedge-shaped, truncate posteriorly in front of 

 premaxilla-s incisive foramina rather short and broad; bulke large; in- 

 terpterygoid fossa long, squarely truncate anteriorly against a broad 

 median azygos projection of the palate. 



Remarks. The only species with which P. albipes requires compari 

 son is P. longicaudus True from western Oregon one of the rarest and 

 least known mammals of the world. So far as I am aware only two 

 specimens of longicaudus have been collected the type and a female in 

 the Biological Survey Collection, from Meadows, Lane County, Oregon. 

 21 BIOL. Soc. WASH. VOL. XIV, 1901. (125) 



