No. 2. 



REPORT UPON THE MAMMALS COLLECTED ON THE SURVEY. 



CHAPTER I. 



REPORT BY J. G. COOPER, M. D. 



NEOSOREX NAVIGATOR, Cooper. 



Baird, Gen. Rep. Mammals, 1857, 11. 



Sp. Ch. — Fur mucli longer than the ears. Palms and soles margined by a fringe of bristles. Hind feet nearly as long as the 

 skull. Tail one-half longer than head and body. Color above, dark sooty brown, mixed with hoary ; beneath, greyish white ; 

 tail silvery white beneath. Head and body 2.10 ; tail 3. 



But one specimen of this species was obtained during the expedition ; this, according to the 

 label now attached, was found at Fort Vancouver, but I am inclined to consider this a mistake, 

 and that it was really taken while swimming under water in a lake near the summit of the 

 Cascade mountains, August 31, 1853. 



SOREX VAGRANS, Cooper. 



Baird, Gen. Rep. Mammals, 1857, 15. 



Sp. Ch. — Third upper lateral tooth smaller than the fourth. Above, olive brown, washed with hoary ; beneath, dusky 

 yellowish white ; sides a little paler than the back. Head and body 2 inches ; tail 1.75. Hind foot about .47 of an inch. 



Specimens were obtained at Shoalwater Bay, W. T. 



SCALOPS TOWNSENDII, Bach. 



Oregon Mole. 



Scalops townsendii. Bach. J. A. N. S. Ph. VHI, 1839, 58. 



Ann. & Bach. N. A. Quad. Ill, 1853, 217 ; pi. cxlv. 

 Baird, Gen. Rep. Mammals, 1857, 65. 



Sp. Ch. — Teeth 44. Eye small, but not covered by the integument. Tail rather scantily haired. Nostrils opening on the 

 upper surface of the tip of the snout. Palm large and broad. Color nearly black, with faint purplish or sooty brown reflection. 

 (Sometimes, perhaps, glossed with silvery .') 



Moles are not common in any part of the Territory I have visited. Two specimens were 

 obtained at Shoalwater Bay, where they burrow more like the gophers than the S. aquaticus, 

 throwing up little mounds at a yard or two apart, though they sometimes in soft ground formed 

 continuous galleries just beneath the surface. 

 10 Q 



