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Home > Animals > Echiniderms > Sea Urchins > Red Sea Urchin

Red Sea Urchin Gallery

Available as Framed Prints, Photos, Wall Art and Gift Items

Choose from 17 pictures in our Red Sea Urchin collection for your Wall Art or Photo Gift. Popular choices include Framed Prints, Canvas Prints, Posters and Jigsaw Puzzles. All professionally made for quick delivery.

Slate pencil sea urchin Featured Red Sea Urchin Print

Slate pencil sea urchin

Slate pencil sea urchin (Heterocentrotus sp.) on a reef. The sea urchin is a marine invertebrate of the phylum Echinodermata that includes starfish. Like a starfish, a sea urchin has five-fold radial symmetry. The arms have fused to form a spherical shell from which protective spines protrude. Here, the spines are thick to withstand the turbulent water of its shallow water habitat. This urchin is named for the fact that its spines were used to write on blackboards. A sea urchin uses tube feet on its underside to crawl over rocks. Its mouth is also on its underside, and its five jaws scrape up algae (microscopic plants) growing on the rock. Photographed in the Red Sea