Common name: sand dollar
Class: Echinoidea
Location: nortern hemispehere oceans
Description of Habitat: sandy coasts around the northern hemisphere below low tide level
Facts: Entire animal is covered in moveable spines. They are purplish brown but become white when they wash ashore. It has pentaradial symmetry.
Human impact: humans like to take them as souvenirs
Sources:
http://eol.org/pages/598165/overview
http://animaldiversity.org/accounts/Echinarachnius_parma/
http://www.marinespecies.org/echinoidea/aphia.php?p=taxdetails&id=158062
http://eol.org/pages/598165/overview
http://animaldiversity.org/accounts/Echinarachnius_parma/
http://www.marinespecies.org/echinoidea/aphia.php?p=taxdetails&id=158062