带鱼
Hairtail \Hair"tail`\, n. (Zo["o]l.) Any species of marine fishes of the genus {Trichiurus}; esp., {T. lepterus} of Europe and America. They are long and like a band, with a slender, pointed tail. Called also {bladefish}.
hairtail n : long-bodied marine fishes having a long whiplike scaleless body and sharp teeth; closely related to snake mackerel [syn: {cutlassfish}, {frost fish}]