Aristotle's lantern
| Jaw apparatus of the sea urchins, consisting of five hard, pointed teeth in sockets formed by five ossicles. They are used to scrape algae and seaweeds from the rocks for food. |
How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content.
| ?Page tools | ||
|---|---|---|
|
?Sign in  |
|---|