The striated and polished surfaces are called slicken-sides.

有条磨光面则称为擦面。

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

在大多数鱼类尾鳍，沿著背腹前部具有无条鳍条。在些鱼中，例如鰕虎鱼其有条无条纹软条数量比在鑑定上是有帮助。