A Crup was a wizard-bred dog.


It strongly resembled a Jack Russell Terrier, except that a Crup had a forked tail. They were clearly wizard-bred dogs since they were extremely loyal to wizards, and ferocious toward Muggles. They eat almost anything. A group of Crups is known as a "pack".

Crup owners were required by British wizarding law to remove the forked tail of the animal when it was six to eight weeks old, using a painless Severing Charm, in case they were noticed by Muggles. A licence from the Department for the Regulation and Control of Magical Creatures also had to be obtained, and the owner had to pass a test to show that they were able to control the animal in Muggle-inhabited areas.


Thornton Harkaway, President of the Magical Congress of the United States of America in 1760, was a breeder of Crups until his pack savaged several local No-Majs in Williamsburg, Virginia which left them only able to bark for a period of 48 hours. This lead both to Harkaway leaving office in disgrace and the relocation of the Magical Congress of the United States of America headquarters to Baltimore, Maryland.[1]

Rubeus Hagrid's fifth year Care of Magical Creatures class studied this creature in 1996.[2] They were amongst those creatures that most often came up on Ordinary Wizarding Level examination and thus part of the Ministry of Magic approved curriculum for Care of Magical Creatures students at that level.[3]

The popular singer Celestina Warbeck was a known breeder of rough-coated Crups.[4]

Behind the scenes

  • According to W.O.M.B.A.T., it may be possible for Crups to interbreed with dogs.
  • President Harkaway's breeding of Crups could be considered anachronistic, as the Jack Russell terrier itself was not first bred until the mid-1800s. However, it is possible that the Crup predates the Jack Russell, and the similarities between the two were only noted in more recent times.

From Pottermore

The Crup originated in the southeast of England. It closely resembles a Jack Russell terrier, except for the forked tail. The Crup is almost certainly a wizard-created dog, as it is intensely loyal to wizards and ferocious towards Muggles. It is a great scavenger, eating anything from gnomes to old tyres. Crup licences may be obtained from the Department for the Regulation and Control of Magical Creatures on completion of a simple test to prove that the applicant wizard is capable of controlling the Crup in Muggle-inhabited areas.


Notes and references

Care of Magical Creatures
Care of Magical Creatures at Hogwarts
Hagrid's Hut · Forbidden Forest · Care of Magical Creatures classroom
Silvanus Kettleburn · Rubeus Hagrid · Wilhelmina Grubbly-Plank (substitute teacher)
The Monster Book of Monsters · Fantastic Beasts and Where to Find Them
Creatures studied at Hogwarts
Hippogriff · Flobberworm · Salamander · Blast-Ended Skrewt · Niffler · Unicorn · Thestral · Bowtruckle · Crup · Fire crab · Knarl · Kneazle · Porlock