late to the debate I know, but its definitely NOT a nurse shark. As a couple of others have said, it is a bambooshark. It may be the Arabian bambooshark Chiloscyllium arabicum, or perhaps more likely the brown-banded bambooshark (aka banded catshark) Chiloscyllium punctatum - note that the adult of this latter species is radically different in appearance from the strikingly-banded juveniles
