"Again that terse, crisp sound lashed the clear air and one nostril of her platyrrhine nose became a bloody pockmark. She ceased to move."

So sad to hear that her nose has a flat nose...

Hi ! Though I think the phrase says that her nose was a flat nose (not had) I think she (whoever she was) may have been lucky she had that platyrrhine nose, meaning there was less to be lashed.