Hystricidae

A porcupine is any of 27 species of rodent belonging to the families Erethizontidae or Hystricidae.

Erethizon dorsatum - The Panda's Thumb 2010

_Hystricidae_, the rest belonging to Africa in part, but the majority to the American continent, chiefly South America.

Natural History of the Mammalia of India and Ceylon Robert Armitage Sterndale 1870

As I have said before, we have only to do with the _Hystricidae_ or

Natural History of the Mammalia of India and Ceylon Robert Armitage Sterndale 1870

_Muridae_, rats; _Hystricidae_, porcupines; and _Leporidae_, hares; which indeed are considered by some to embrace the whole of the order; to which has recently been added the _Saccomyidae_, or pouched rats, whilst many systematists make separate families of the dormice,

Natural History of the Mammalia of India and Ceylon Robert Armitage Sterndale 1870