There IS such a list BUT I am pretty sure it is no longer valid.
When I made our ADR for October '05 I wanted to go on "salmon night". I looked at the rotation schedule and purposely booked for that night (Tuesday, I think). The CM from Dining told me Boma doesn't do that anymore, but I figured if he was wrong I would get salmon and if he was right then it wouldn't matter WHAT night we went!
The CM was right. They had chicken, salmon, and prime rib. One kind of each. I think the selections change, but not according to the schedule that sometimes floats around on the boards. It was dated 2004, I think, so they have obviously made some changes since then.
But Boma was fabulous and we can't wait to go back!