n. [ Black + tail. ] 1. (Zool.) A fish; the ruff or pope. [ 1913 Webster ]
2. (Zool.) The black-tailed deer (Cervus Columbianus or Cariacus Columbianus) of California and Oregon; also, the mule deer of the Rocky Mountains. See Mule deer. [ 1913 Webster ]
(n) the common jackrabbit of grasslands and open areas of western United States; has large black-tipped ears and black streak on the tail, Syn. Lepus californicus