The pharyngeal teeth and gill raker can be observed clearly in the post-pharyngeal area in the larval grouper of the 26th day.

• 在26日龄时的仔鱼咽部，明显观察到咽齿及鳃耙，短的食道起源于咽腔，终止于胃，胃分为贲门部和幽门部。