Modern usage:
麋 almost always appears in the compound
麋鹿 (Père David's deer). The folk nickname
四不像 'four-not-alike' comes from the animal's mosaic appearance: antlers like a deer, hooves like an ox, face like a horse, tail like a donkey. Classical Chinese sometimes used
麋 loosely for elk or river-side deer in general, but in modern zoology it refers specifically to Elaphurus davidianus.