Helmet urchin or Shingle urchin (Colobocentrotus atratus), Keauhou Bay, Kona, Big Island, Hawaii, United States of America, Pacific

big island color image day hawaii horizontal invertebrates immature islands island kona marine life natural world nature ocean outdoors place of interest sea urchin sea urchins united states of america urchin urchins water close up close ups tropical helmet urchin shingle urchin colobocentrotus atratus