Assertion: purple sea urchin | /r/HasProperty | arbacia punctulata
Facets:
Source sentences:
text: The purple sea urchin, Arbacia punctulata, has been thriving in waters across the world for years and hopefully will continue to.
text: The Atlantic purple sea urchin (Arbacia punctulata) is a species of sea urchins from the family Arbaciidae, native to the Atlantic Ocean.