- any of several European rays with many tubercles on the back and a double row of spines on the tail
- a large European spider crab (Maja squinado) with a spiny back
- a guitarfish (Platyrhinoidis triseriata) with spines on the back, found in the Pacific
Any of various rays having spines on the back, especially Raja clavata, found in coastal waters of the eastern Atlantic Ocean and the Mediterranean Sea.
- Any animal with a thorny back, especially marine animals, such as: