Trade in a mythical fish is threatening real species of rays that are rare and at risk They look like devils and hence are called pez diablo in Spanish, but these demonic objects are dried and mutilated versions of living rays known as guitarfish. theconversation.com theconversation.com / feeds theconversation-com-us-home-page .. theconversation-com-us-environment / / #news / / 29 days 29d Share