Ene N ra: Hystrix, Lepus, Castor, Mus, Sciurus, ecora.
The European porcupine (Hystrix cristata) is the typical representative of a family of Old World rodents, the Hystricidae, all the members of which have the same protective covering.
Of the three genera Hystrix is characterized by the inflated skull, in which the nasal chamber is often considerably larger than the brain-case, and The Porcupine (Hystrix cristata).
- Skull of Porcupine (Hystrix cristata), with muscle attached.
In the typical genus Hystrix, which FIG.