n. 带鱼

[ noun ]
long-bodied marine fishes having a long whiplike scaleless body and sharp teeth; closely related to snake mackerel
<noun.animal>

Hairtail \Hair"tail`\ (-t[=a]l`), n. (Zo["o]l.)
Any species of marine fishes of the genus {Trichiurus}; esp.,
{Trichiurus lepturus} of Europe and America. They are long
and like a band, with a slender, pointed tail. Called also
{bladefish}.