168 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



have been prepared (pi. 10, figs. 1, 2, 3, a). The skull was found in 

 the Fox Gulch mine, near Dawson, Yukon Territory, and was pre- 

 sented to the American Museum of Natural History by George T. 

 Coffey, through L. S. Quackenbush. The catalogue number of the 

 specimen is 13721. This skull lacks the lower jaws; likewise the 

 maxillary, the premaxillary, and the lachrymal of the right side are 

 missing. The true molars of the left side are present, but are some- 

 what shattered and consequently have not been figured. The meas- 

 urements taken are found m the second column of the following table. 

 In the first column are the corresponding measurements from the 

 type-specimen, so far as they can be obtained: 



Measurements of skulls. 



The following are the measurements of the molar teeth; and in 

 the second column the corresponding measurements of the molars of 

 two American bisons, the stage of wear being about the same: 



Measurements of teeth. 



