犹他亚口鱼(学名:Catostomus ardens)为辐鳍鱼纲鲤形目亚口鱼科的其中一种,为温带淡水鱼,分布于北美洲美国蛇河和邦纳维尔湖流域(位于怀俄明州、犹他州及爱达荷州境内)。体细长,头部至背鳍之间略高,口下位,唇厚呈吸盘状,体上半部为黑色,并散布浅色斑点,腹部白色,臀鳍软条7枚、背鳍软条13枚,体长可达65公分,主要栖息在沙质、砾石底质、有植被生长的溪流和湖泊,由于栖息地受到污染破坏,族群数量逐渐减少。
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