The male shows elongated rays in its anal fin and yellow pearl organs on the jaws and opercula during breeding season.

雄的臀鳍鳍条特，交配季节两颌和鳃盖黄色的珠星。

Most fishes have unstriated rays along the anterior part of the dorsal and ventral edges (leading edges) of the caudal fin.

在大多数类的尾鳍，沿著背与的前部具有无条痕的鳍条。在一些中，例如鰕虎其有条痕的与无条纹的软条数量比在鑑定上是有帮助的。