An adult Galapagos bullhead shark (Heterodontus quoyi), Buccaneer Cove, Santiago Island, Galapagos Islands, UNESCO World Heritage Site, Ecuador, South America
An adult Galapagos bullhead shark (Heterodontus quoyi), Buccaneer Cove, Santiago Island, Galapagos, UNESCO World Heritage Site, Ecuador, South America
Mexican Horn Shark (Heterodontus mexicanus) egg case held up to the light (detail) in the northern Gulf of California (Sea of Cortez), Mexico.
Port Jackson shark (Heterodontus portusjacksoni). Australia
