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本文对极边扁咽齿鱼,黄河裸裂尻鱼、花斑裸鲤和厚唇重唇鱼进行了食性分析和脑的形态结构观察,并对脑结构和食性的关系作了初步探讨。认为这四种鱼类属于底层味觉食性鱼类,其中极边扁咽齿鱼和黄河裸裂尻鱼主要靠口腔、腭部味蕾觅食泥土和藻类,迷叶发达;厚唇重唇鱼主要靠触须寻找甲壳类为主的水底昆虫,面叶和小脑发达;花斑裸鲤的脑结构特征与其杂食性相适应。
In this paper, the etiology and structure of brain were observed and analyzed on the relationship between brain structure and diet of polar fossilized fish, naked fish of the Yellow River, naked carp and thick-lipped lipfish. The four kinds of fish belonged to the bottom taste-feeding fish, among which, the polar-edge flatfish and the Yellow River bare-boned anchovy mainly relied on the oral cavity and the palatal taste buds for feeding the soil and algae with the developed leaves; Tentacles looking for crustacean underwater insects, flour and cerebellum developed; spotted carp brain structure characteristics and adapt to its omnivore.