Echinoidea
Of class and Echinodermata. May also be referred to as class Echinoidea.
Sea urchins and sand dollars.
This concept's ID is @1~12082
Animal Order
- Exocycloida
Flat sea urchins.
- Spatangoida
Heart-shaped sea urchins.
Also contains
- sea urchin
Shallow-water echinoderms having soft bodies enclosed in thin spiny globular shells.