Sea urchin - if you are lucky you will find these delicate urchin skeletons still intact on the beach. Watch out for those that are still living in the rocky reefs at the shoreline - they have sharp spikes.
scallop sea shell, sketch style vector illustration isolated on white background. Realistic hand drawing of saltwater scallop seashell, clam, conch - buy this stock vector on Shutterstock & find other images.
Starfish or sea stars are echinoderms About living species of starfish occur on the seabed in all the world's oceans, from the tropics to subzero polar waters. They typically have a central disc and five arms, though some species have more than thi