After finding the dead Orc along with a dead crocodile, reading the note found on him will tell there is a bounty for killing crocodiles and collecting teeth in the area of Hag Fen. Kill enough crocodiles to collect 25 teeth. When done, head over to the camp near Dwynnarth Ruins to find the huntmaster.
Collect the bounty from Hoster Marceau, who cannot help saying that they are the first ones today who still have their arms and legs intact! He rewards you with 75 .