I got the toadskin map, very easy fight and rewards 5 philos, some electrum ink, and some gil. I did have one other guy with me and he got the same reward, so I'm assuming it's not split..? since it's also a one-man fight but we duo it o.o Have to try more today.
Also, is it possible to get 'gold' in treasure hunt? I'm just wondering cause after the hunt ended it displayed this contribution thing (similar to when FATE ended) and it looked like silver to me XD