Yeah, they do all Bichirs have that set-up of teeth (if they didn't they would not be Polypterids) it is just that when you add flesh,muscle etc..they don't look as big...Look closly at Sens at 8"+ and you'll see them
It's a long story on how I got the skull. This lap died a few months ago. It go fin rot and other skin disease when it arrived from Africa. I tried to cure it but it wasn't a success. So I decided to take the skull of the dead lap as Cohazard wanted to see the teeth.