Fishermen caught grey mullet near the inshore area.

渔民在近海围捕乌鱼。

The thyroid gland of grey mullet is dispersedly distributed in the region of anterior branchial arch.

鲻鱼甲状腺滤泡分散分布于前鳃区腹主动脉周围的结缔组织中。

Compared with the thyroid gland of grey mullet, the endostyle of amphioxus is primitive. It is an open groove and has lots of cillia adjacent to the pharynx lumen.

与鲻鱼甲状腺相比，文昌鱼内柱的结构更为原始，仅是部分区带演变为甲状腺激素分泌细胞，而其余区带仍与摄食相关。