I caught this little guy on a inch and a half long lure. I thought the weirdest thing was that the fish was only about two and a half inches long. I kept it alive but it died by the time I got to the boat ramp. I was going to toss it but then noticed its mouth(s).
If you look really closely, you can see that the head is still on Sorry, I couldn't resist. I have some other pics. I'll go see which are the best head on.
It is definately some kind of deformity. The bottom weird one is connected to the normal upper one. When the bottom one is opened, the top one would open too.
Click on the bottom picture and then click on it again to magnify it. You can see that the bottom mouth has lips and membrain around the corners of the mouth. There is also bone work between them that can be seen.