2. (Zo["o]l.) Any marine fish of the genus {Macrurus}, in
which the body and tail taper to a point; they mostly
inhabit the deep sea; -- called also {onion fish}, and
{rat-tail fish}.
3. (Zo["o]l.) A bright-colored South African grosbeak
({Pyromelana orix}), having the back red and the lower
parts black.