And each of the setae is covered in even tinier bristles called spatulae.

这些更小的叫做匙突(spatulae)的结构覆蓋。

Thus, with the avicularia of several species of Lepralia, the movable mandible is so much produced and is so like a bristle that the presence of the upper or fixed beak alone serves to determine its avicularian nature.

因此，对 Lepralia 的几种物种的鸟骨， 可移动的下颌骨产生得如此， 非常像， 以至仅存在上喙或固定喙就可以确定其鸟骨性质。