Provides an introduction to the phylum, with a summary and a look at taxonomy.

Presents a comprehensive breakdown of the subphylum of Myriapoda through Echinodermata.

Read about the cushion star's habitat, reproduction cycle and physical characteristics.

Overview of these marine animals includes information on their habitat and appearance. Find related links and search engines.

Read about the morphology, life history and fossil record of this group of invetebrates which includes sea cucumbers and starfish.

University of Hawaii at Hilo presents a variety of photographs of species found near the islands, organized by individual classes.

Peruse this study on the form and structures of echinoderms. Examines the fossil record.

Learn about the physical and geographical characteristics of the brittle star, a starfish-like echinoderm with five arms for catching food.

Presents a brief article describing the invertebrate, its habitat, feeding behavior, and taxonomy.

Presents the anatomical structure, feeding behavior, and taxonomic grouping of this elongated invertebrate which dwells on the sea floor.

Discover the sphere-shaped marine invertebrate with the long, movable spines. Read about its food preferences and taxonomic grouping.

Provides a description of the anatomy and feeding behavior of the star-shaped carnivorous marine invertebrate.

London museum presents this guide to sea urchins. With a glossary, description of the fossil record, and a complete taxonomy.

View photos of brittle and basket stars, and discover facts about their body structure, feeding habits and life cycle.

Animal Diversity Web introduces the sea urchins, starfish and sea cucumbers, and supplies biological information, classification and photographs.

Presents a meeting place for this line of work, along with a series of images and links to other professional associations.

Describes the habitat, physical characteristics, reproduction cycle and behavior of this sea star.

Describes this group of spiny animals that includes sea stars, urchins, sand dollars and sea cucumbers.