The Collaborative International Dictionary
Cariacus Columbianus
Blacktail \Black"tail`\, n. [Black + tail.]
(Zo["o]l.) A fish; the ruff or pope.
(Zo["o]l.) The black-tailed deer ( Cervus Columbianus or Cariacus Columbianus) of California and Oregon; also, the mule deer of the Rocky Mountains. See Mule deer.