VOL. XVIII, PP. 135-140 APRIL 18, 1905 



PROCEEDINGS 



OP THE 



BIOLOGICAL SOCIETY OF WASHINGTON 



DESCRIPTIONS OF APPARENTLY NEW MAMMALS OF 

 THE GENERA OVIBOS, CYNOMYS AND MUSTELA. 



BY D. G. ELLIOT, F. R. S. E., ETC. 



The specimens described in the present paper have been in 

 the collection of the Field Columbian Museum for a considerable 

 time, some of them indeed for several years. It is regretted 

 that an exact locality can not be given for the new race of 

 the musk-ox, but this, as every collector knows, is practically 

 impossible, when the specimens are obtained from the natives 

 of any country an approximate locality being all that can 

 be given. Only the trained collector appreciates the impor 

 tance of recording the exact place at which his specimens were 

 procured . 



Ovibos moschatus niphoecus* subsp. nov. 



BLACK MUSK-OX. 



Type from the region north of Hudson Bay; exact locality unknown. 

 Type No. 1267, Field Columbian Museum. 



General characters. In color intermediate between 0. moschntus and 0. m. 

 wardi. Most of the young animals, and some of those in the prime of life, 

 have a narrow white band between the ears back of the horns, but no 

 white on the face. The old bull, which is in worn pelage, has no white 

 hairs anywhere, while the aged cow, presumably his mate (as all the speci- 



* vl(f>a snow, and <UK&I> to dwell to dwell amid the snow. 



22 PROC. BIOL. Soc. WASH., VOL. XVIII, 1905. (135) 



