I have looked around the 8th and 9th floor it says 8th floor in the dungeon and in the Journal 
but, on the guild job board it says the 9th floor.
I have found two suspicious looking Boulders on the 8th floor but, when I approach them they don't do anything.
also one more glitch, I found if you run out of monster lure while in a bottle spot it will display the floor map, the bottom icons, and, text that says you have run out of monster lure.