灰吸口鱼（学名：Moxostoma congestum），为辐鳍鱼纲鲤形目亚口鱼科的其中一种，为温带淡水鱼，分布于北美洲美国淡水流域，体长可达65公分，栖息在中小型河川、深潭及湖泊，生活习性不明。
参考文献
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