The bowmouth guitarfish (Rhina ancylostoma), also called the shark ray or mud skate, is a ... Its mouth forms a W-shaped undulating line, and there are multiple thorny ridges over its head and back. It has a ... Rhina and Rhynchobatus, which are a group of rays known as the wedgefishes that also have large, shark-like fins.
File:Rhinobatos productus Tremendo.jpg - Wikimedia Commons