Dried specimen of Diodon holocanthus, long-spined Porcupine FIsh. Porcupine fish are also commonly called blowfish, puffer fish, balloon fish and globefish. They are in the family Diodontidae.
Closeup of a spiral sea shell in black and white
Sand Dollars, a species of Sea Urchin. These marine creatures belong to the order Clypeasteroida.