Welcome to the World of Echinoderms
Echinoderms have about 7,000 species and are exclusively marine. Adult echinoderms have radial symmetry. They are characterized by there spiny skin, which is where they got their name! In Greek, "echinos" means spiny and "dermos" means skin. Examples of echinoderms include sea stars, sea urchins, sea cucumbers, sand dollars, and brittle stars.
Types of Echinoderms
Patiria miniata |
Echinothrix calamaris |
Crinoidea
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Water Vascular System
Aboral Side of Sea Star |
Water Vascular System of Sea Stars |
Water Vascular System of Sea Urchins |
Echinoderms and Medicine
Bohadschia argus |
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