Both do have "pronounced" or noticable bumps, if yours is completely smooth then it may not be either one. I bought 2 fighting conch here, and the bumps looked different. I figured out one was a queen. Having them in the same tank helped (alot) to see what everyone meant. If your shell is truely smooth then IMHO its not either a queen or fighting, but something else. Future reference: fighting (think of a boxer, they fight and in rounds) hince the rounded bumps/spikes. That is how I make sence of it.