What is a two horned unicorn called?

Related questions

1. What kind of Pony is Twilight Sparkle?
2. Are all my little ponies unicorns?
3. How old is Luna Celestia?
4. What is a group of unicorns called?
5. Why is a unicorn not a Unihorn?
6. Is there going to be a season 9 of MLP?
7. Are Alicorns immortal?
8. How Old Are My Little Pony?
9. How old do ponies live?
10. Which My Little Ponies have horns?

Tags

1. #rhinoceros
2. #deficiency
3. #scientific
4. #horns
5. #unicorn
6. #horned
7. #twonicorn
8. #species
9. #becoming
10. #extra
11. #rhino
12. #mutant