Photo of apertural view of the shell of Checkerboard Bonnet <i>Phalium areola</i>.
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/28722516@N02">Richard Parker</a>
CC BY 2.0
originally posted to <b><a href="//commons.wikimedia.org/wiki/Flickr" class="mw-redirect" title="Flickr">Flickr</a></b> as <a rel="nofollow" class="external text" href="https://www.flickr.com/photos/28722516@N02/3670569493">Checkerboard Bonnet - Phalium areola</a>. Border is removed.