crustacean
)
Large crayfish. The crayfish is a ten-limbed crustacean closely related to the lobster family. There are more than 500 species, nearly all of which live in fresh water. The Austropotamobius genus, the most common in Europe, is the only one native to Great Britain.
One of the class of arthropods that includes crabs, lobsters, shrimps, woodlice, and barnacles. The external skeleton is made of protein and chitin hardened with lime. Each segment bears a pair of appendages that may be modified as sensory feelers (antennae), as mouthparts, or as swimming, walking, or grasping structures.
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  |
|---|