Actinia ququina (beadlet anemones) with tentacles withdrawn. Low tide. From Rogaland, Norway. Photographer: O. Nevestveit
<a href="//commons.wikimedia.org/wiki/User:Nevestv" title="User:Nevestv">O. Nevestveit</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>