The Echinoderms

Episode of Series “The Intertidal Life of the North American Pacific Coast”. A few species of the phylum Echinodermata found in the rich environment of the North American Pacific coast are shows. Four of the five classes are found in the inter-tidal region: Asteroidea, sea-stars; Ophiuroidea, brittle stars; Holothuriodea, sea cucumbers; and Echinoidea, sea-urchins. Uses micro-photogpraphy.