<p>White-knight dorid, a nudibranch, also called a white sea slug, at Cordell Bank National Marine Sanctuary.
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Photo credit: Greg McFall/NOAA
<a rel="nofollow" class="external text" href="https://www.flickr.com/people/44124469278@N01">National Marine Sanctuaries</a>
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/onms/48771145802/">CBNMS white-knight dorid nudibranch</a>