峰为被向上牵引的下副裂或伴肺韧带的肺内间隔所致。

The peak is caused by upward retraction of the inferior accessory fissure or an intrapulmonary septum associated with the pulmonary ligament .

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本文应用分支系统学方法，选取外部及骨骼形态学特征，对洱海特有的鲤属、四须鲃属、裂腹鱼属弓鱼亚属和副鳅属进行了研究。

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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