JUNE, 1901. LIST OF NORTH AMERICAN MAMMALS ELLIOT. 485 



Genl. Char. "Size large; skull and horns broad and massive; 

 molar teeth much larger than in any known American sheep, the 

 upper tooth row in adult males measuring 96 mm. or more, and the 

 three upper molars 63-65 mm. Under jaw (in type specimen) mas- 

 sive, heavy posteriorly, deeply bellied (depth under last molar 

 52 mm.); angle broadly rounded. In canadensis (cervina), the jaw 

 is light throughout and the angle, while small, is marked. Horns 

 narrower, and as a rule larger than in canadensis (cervina)."* (Merr. , 



1. c.) No skins examined. 



PAGE. 



72. Ovis stonei. Allen - 47 



73. Ovis dalli. Nelson 47 



74. Ovis fannini. Hornaday 425 



36. Ovibos. De Blainv., 1816. 



75. Ovibos moschatus. (Zimm.) 48 



^0vlbos moschatus wardi. Lydekker, Nature, Ixiii, Dec., 1900, 

 P- 157- 



Type locality. East Greenland. 



Geogr. Distr. " Southern border of Ellesmere Land northward 

 through Grinnell Land to the Polar Sea, and on the Greenland coast 

 from about latitude 78 on the western side northward to and around 

 the northern end of Greenland to about latitude 75 N. on the east 

 coast." (Allen.) 



Genl. Char. Basal portion of horns narrow. White on face and 

 top of head, and lighter legs. 



Color. Similar to O. moschatus, but with a white area on the 

 front of the head forming a face spot; ear and patch below the ears 

 gray; between the ears on top of head whitish; saddle mark of light 

 brown; rest of body dark brown. 



(Adult bulls have the head and neck almost jet black ; visible portion 

 of legs whitish, but sometimes marked with dark brown. The white 

 on head seems very variable, for out of seven specimens supposed to 

 be of this variety in the Field Columbian Museum, none have any 

 white on the face except the old cow. The old bull has no white at 

 all upon the head, and the next bull, one in his prime, has a jet 

 black head and neck, with but a little white about the horn bases; 



* Relative sizes of molar teeth and parts of crania are properly classed in the majority of 

 cases, with those differences resulting simply from individual variation, and it would seem unlikely 

 that the Dakotas and Montana, contiguous States, would each contain a distinct variety of moun- 

 tain sheep. The greater depth and massiveness of lower jaw is apparently restricted to the 

 type specimen. 



t Published after the Synopsis was issued. 





