Phylum Echinodermata

Class Asteroidea

Ochre star- Check out the madreporite in the middle of sea star. This is where water is into the sea star for the water vascular system.

Crossaster papposus- a sunstar; This individual is about 35 cm wide.

Class Ophuiroidea

Western Spiny Brittle Star- Ophiopterus spiculata

Class Holothuroidea

Sea cucumbers are so delightfully strange!

Class Echinoidea

    

Strongylocentrotus franciscanus

A living sand dollar

This video shows feeding urchins, sand dollars, sea stars, and brittle stars:


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