1) Black-tailed deer 2) Blacktail deer 3) Burro deer 4) Mule deer 5) Odocoileus hemionus 6) Western mule deer 1) Deer 
• (n.) The black-tailed deer (Cervus / Cariacus Columbianus) of California and Oregon; also, the mule deer of the Rocky Mountains. See Mule deer. • (n.) A fish; the ruff or pope.
Black'tail` noun [ Black + tail .] 1. (Zoology) A fish; the ruff or pope. 2. (Zoology) The black-tailed deer ( Cervus or Cariacus Columbianus ) of California and Oregon; also, the mule deer of the Rocky Mountains. See Mule deer .