• 有着锋利牙齿的水虎鱼纳氏锯脂世界残忍淡水鱼类

    The razor-toothed piranhas of the genera Serrasalmus and Pygocentrus are the most ferocious freshwater fish in the world.

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  • 基于外部形态特征内部骨骼特征进行了分支系统学分析。

    Phylogeny of the cyprinid subgenus Cyprinus (Mesocyprinus ) is elucidated based on both external and osteological features.

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  • 本文应用分支系统学方法,选取外部骨骼形态学特征,洱海特有鲤属、四须鲃、裂腹弓鱼亚副鳅进行了研究。

    Using cladistics methods, we studied both outer and osteological characters of 4 fish groups, Cyprinus, Barbodes, Schizothorax (Racoma) and Paracobitis, endemic to Erhai Lake.

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  • 梅丽莎·汤普森在25.94秒内写了条短息:“锯脂有着锋利牙齿水虎鱼纳氏锯脂世界上残忍淡水鱼类。”

    Melissa Thompson wrote the message "the razor-toothed piranhas of the genera Serrasalmus and Pygocentrus are the most ferocious freshwater fish in the world."

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  • 结果表明:中一个复系群,该类元应该被撤销。

    This result suggests that subgenus Cyprinus should be suspended.

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  • 银色小鱼北美科,通常是银色淡水鱼鱼类。

    Any of numerous small, often silvery North American freshwater fishes of the family Cyprinidae, especially one of the genus Notropis.

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  • 银色小鱼北美科,通常是银色淡水鱼鱼类。

    Any of numerous small, often silvery North American freshwater fishes of the family Cyprinidae, especially one of the genus Notropis.

    youdao

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