The assignment was send by Viera called Nera. She's in Eruyt Village sitting in the "centre" of the village. He'll ask you to get a tail of a hare which lives in Golmore. This creature is very fast and Nera's friend has a wounded leg and isn't able to catch it by herself. That's why you have been hired.
About 20 000 HP
Resistant to Libra
Does he have any?
To find him go to the south part of Golmore Jungle. You can't see him at the first sight - you have to get in the middle of the marked square (see map above). If you don't want to fly mad attack him with the strongest quickenings you have right away. The fight with him is so annoying because of its fighting ability - he doesn't fight, he just runs and when you chase it you draw more and more mobs living there. The only situation when you can get attacked by it is when you corner it - he'll just slap you once and run away again. Unfortunately it's immune to immobilize.
Bounty: 2000 gil, Lightning Arrows, Gillie Boots.