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，对于 Lepralia 的几种物种的鸟骨， 可移动的下颌骨产生得如此多， 并且非常像刚毛， 以至于仅存在上喙或固定喙就可以确定其鸟骨性质。