Echinoderm Vocabulary

2. found only in sea cucumbers, used for excretion, respiration, and in some for defense.
5. a type of collagen found between the dermal ossicles which is under neurological control
9. "not mouth side"
11. a phylum that lies between the phyla Echinodermata and the Chordata
14. unique feeding structure found in echinoids.
15. means star form; includes all types of sea stars
18. means "a covered area or alley, an area covered with trees
19. minute pincers located at the base of each spine
20. the mouth side
21. "skin plates" made of calcium
22. tiny appendages on the aboral side used for locomotion and food gathering

1. {means "cucumber form"} sea cucumbers
3. (name means "hedgehog form" includes sand dollars, sea biscuits, sea urchins.
4. part of the tube feet that act like the bulb on an eye dropper.
5. (means, lily form; includes sea lilies and feather stars
6. means having a common center form; sea daisies.
7. area for fluid storage and regulation of pressure in the water vascular system
8. The groove on the underside of a starfish where the tube feet starting at the mouth moving out to the tip of each ray.
10. (name means "snake tail") commonly referred to as serpent stars.
12. believed to create coelomyocytes
13. symmetry form of radial that is based on 5.
16. "skin gills"
17. opening to the water vascular system