[blak-teyld] 
| a variety of mule deer, Odocoileus hemionus columbianus, of the western slope of the Rocky Mountains, having a tail that is black above. |
[blak-teyl] . 
| black-tailed deer (blāk'tāld') n. See mule deer. |
| mule deer n. A brownish-gray deer (Odocoileus hemionus) of western North America, having long mulelike ears, large branching antlers in the male, and a black-tipped tail. Also called black-tailed deer. |