This shop sells marine products (shells, shark jaws, stuffed pufferfish, dried starfish etc) in San Diego. Most of this stock comes from the Philippines. It is not illegal to sell shark jaws, although the trade in any shark parts undoubtedly hastens the extinction of the species.
According to UN estimates 73 million sharks are being wiped out each year, and the UN also predict a total collapse in shark stocks in as early as ten to fifteen years from now.