硬骨鱼类的每1个鳃弓的内缘生有两排并列的骨质突起，称为鳃耙。鳃耙为鳃部的过滤器官，用以阻挡食物和沙粒随水流经鳃裂流出，以免损伤鳃瓣。其长短疏密因种和食性而异。如杂食性鳃鱼，鳃耙的疏密程度适中；肉食性鱼，鳃耙短而疏，仅具有保护鳃瓣作用，而无过滤食物的功能；草食性，鳃耙多，长而密；以小型浮游生物为食的鱼类，鳃耙细而长，结成网状的“细筛”，用以阻挡微小食物随水流带出鳃外。
描述了与摄食有关的齿、咽喉齿、舌和鳃耙的形态学特征；
The morphological features of the teeth, pharyngeal teeth, linguae and branchial rakers concerning with feeding were described.
结果表明：鳃耙、鳃弓、鳃丝上皮细胞表面都有环形隆嵴、断续的短纹；
The results demonstrated that the external morphological structure of gill rakes, the gill arches and the gill filaments showed the presence of various features such as annular ridge and short lines.
应用推荐