1、The hystricomorphic features of this species include a long, sharp snout and large, prominent incisors.

这种物种的特征包括长而尖锐的嘴和突出的大门齿，呈现出类似啮齿类动物的特征。

2、The hystricomorphic shape of their skulls is an adaptation for their herbivorous diet.

他们颅骨的类啮齿类动物形态是为了适应其草食性的饮食习惯。