Species we use for development studies, classified

8/24/2001

Phylum: Echinodermata,

Class: Echinoidea, (Sand Dollars, Sea Urchins)

Order: Clypeasteroida

Family: Scutellidae

Dendraster excentricus (Sand Dollar)

Order: Echinoida,

Family: Strongylocentrotidae

Strongylocentrotus purpuratus (Purple Sea Urchin)

Strongylocentrotus franciscanus (Red Sea Urchin)

Strongylocentrotus drobachensis (Green Sea Urchin)

Order: Temnopleuroida

Family: Toxopneustidae

Lytechinus pictus (Sea Urchin)

Lytechinus variegatus (Sea Urchin)

Order: Arbacioida

Family: Arbaciidae

Arbacia punctulata (Sea Urchin)

Subphylum: Asterozoa

Class: Stelleroidea

Subclass: Asteroidea

Order: Spinulosida

Family: Asterinidae

Patiria miniata (Bat Star)

Family: Asteriidae

Pisaster gigantes (Star Fish)

Phylum: Chordata

Subphylum: Urochordata

Order: Phlebobranchia

Family: Ascidiidae

Ascidia ceratodes (solitary Sea Squirt)

Phylum: Echiura

Class: ?

Order: Xenopneusta

Family: Urechidae

Urechis caupo (Fat Innkeeper Worm or "weenie worm")