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Above left is a picture taken of the underside of a shell from a sea urchin called Strongylocentrotus purpuratus, or purple urchin. To the right is a picture of an adult sea urchin being held in a hand.

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 DETAILS

Basic Information:

• Where are they found:Rocky bottoms, intertidal and subtidal Grazing
• What they eat: Algae, Brown Kelp

Scientific Classification:

• Kingdom: Animalia
• Phylum: Echinodermata
• Class: Echinoidea
• Genus: Strongylocentrotus
• Species: purpuratus