毛笔的笔触构成的大头鱼，当然是中国的。

Such a fish should undoubtedly belong to China because its hear is made of brushing stroke.

第一个案例涉及两种亚洲鲤鱼：大头鱼和银色鲤鱼。

The first involves two kinds of Asian carp, bighead and silver.