horseshoe crab
Large littoral arthropod found in North American, Gulf of Mexico, and Asian waters; has a hard carapace shaped like a horseshoe and a stiff tail. A living fossil, dated to around 400 million years ago.
Note that the horseshoe crab is not technically a crustacean.
See also
External links
- Wikipedia: Horseshoe crab
http://www.sciencefriday.com/video/07/15/2010/beach-season-for-horseshoe-crabs.html(Dead link)
